← All thesesZETANeutralMedium convictionSunday 27 September 2026עברית

Zeta Global Holdings

A New York company that runs email, customer data and online ad buying for about 200 big consumer brands, with its own file of data on US adults.

Our viewNeutral Medium conviction
The scores
The profile · 1-4
Growth3/4 ↑

About 28% own growth and $1M customers up 17%, but a third of the headline was bought and resold social ads lead the gain.

Business quality3/4 →

Forrester Leader, 128% retention and a Gap win over Salesforce, but retention is inflated by LiveIntent and agencies own rival data stacks.

Financial position4/4 ↑

Net cash of about $110M, free cash of $202.6M a year and an undrawn $750M revolver; nothing needs outside money.

Execution record3/4 ↑

The 2026 guide rose in February, May and August and GAAP profit arrived, but the scaled-customer metric was dropped and the disclosure lawsuit survived dismissal.

Per share capture2/4 ↑

Share pay equals nearly all trailing free cash and acquisitions were paid partly in shares; the count still rose 5.5% despite buybacks.

Potential2/4 →

A $294.6B ad market, but signed obligations cover only $218.7M of next year and the partnerships carry no volume or term.

Risk profile2/4 ↓

Discovery in a lawsuit over the identity data the product rests on, one customer above 10% and a controlling chief executive.

Valuation2/4 ↓

About 164 times 2026 cash after share pay; 25 times in 2028 needs the plan beaten and share pay cut to about 5%.

Evidence quality3/4 →

Figures are filed and the ad market comes from IAB, but AI adoption, partnerships and buyer returns are management's word and Forrester was read second-hand.

The Verdict

We rate Zeta neutral. It runs email, customer data and online ad buying for big consumer brands, and it is growing fast on its own, about 28% without the company it bought. The business is mixed: the fastest-growing part is buying social media ads for agencies, where it keeps less of each dollar, and staff are paid so heavily in shares that almost no spare cash is left for owners. The price needs that share pay to fall sharply, so it is full, not cheap. The view hinges on share pay falling while growth stays above 20%.

The long caseBrands keep moving ad money online, fastest into social media; Zeta must keep growing on it while paying staff far less in shares.

The evidence under this - 6 claims
C02facthigh confidence
Revenue was $442.8M in Q2 2026, up 43.5% from $308.4M. Marigold's enterprise business, bought in November 2025, added $48.1M, so revenue without it was $394.7M, up 28.0%.
historical · Q2 2026written 2026-09-27
C09estimatehigh confidence
Over the four quarters to Q2 2026 free cash flow was about $202.6M and stock-based pay about $194.5M, so free cash flow after share pay was about $8.1M.
derivedFree cash flow: $164.7M in 2025 (operating cash $198.9M less $13.8M capital spending, $20.1M capitalised software and $0.3M currency) less $61.8M in H1 2025 plus $99.6M in H1 2026. Share pay: $177.8M less $88.5M plus $105.1M.
against this
  • Buybacks of $55.6M in the first half of 2026 already offset part of the dilution, so counting both the expense and the buyback cash would double-count.
  • Share pay is falling as a share of revenue, from 13.6% in 2025 to 11.8% in Q2 2026.
historical · four quarters to Q2 2026written 2026-09-27
C10estimatemedium confidence
At $29.45 on 251.0M shares Zeta's market value is about $7.39B: 36.5 times trailing free cash flow, 29.0 times the 2026 guide's $255.3M, and about 164 times that guide less about $210M of 2026 share pay.
against this
  • Most coverage and the company itself quote free cash flow before share pay, on which 29.0 times the 2026 guide for a company growing 28% on its own is not extreme.
  • Net cash of about $110M lowers what a buyer pays for the business by about 1.5%.
  • The $210M of 2026 share pay is my doubling of the first half; the company gives no share pay guide.
current state · 2026-09-25written 2026-09-27
C11estimatemedium confidence
For buyers to pay 25 times free cash flow after share pay in 2028, that figure must reach about $296M, against the company's own 2028 target of no less than $371M of free cash before share pay.
derived$7.39B (C10) divided by 25 is $296M. The 2028 targets (C12) give $371M of free cash on $2.3B or more of revenue; share pay at 10% of $2.3B is $230M, leaving $141M. Reaching $296M needs share pay near $75M, about 3% of revenue, or free cash well above plan.
against this
  • At 23% a year from the 2026 guide, 2028 revenue would be about $2.75B, well above the $2.3B target, so free cash could beat $371M.
  • Share pay has fallen from 13.6% to 11.8% of revenue in a year, and a further fall to 5% by 2028 is not impossible.
forwardwritten 2026-09-27
C16facthigh confidence
A securities class action based partly on Culper's report survived Zeta's motion to dismiss on 8 July 2026 and has moved to discovery. The company says the claims are without merit and cannot estimate a loss.
current state · 2026-08-05written 2026-09-27
C37inferencemedium confidence
More of Zeta's growth now comes from reselling social media ads to agencies, which keeps about half as much of each dollar as its own software and data.
derivedCost of revenue grew 54.7% against revenue's 43.5% (C05), media was $54.2M of the rise (C05), the integrated share rose three points (C06), and the CFO ties it to agency social buying (C07). 'About half as much' is my inference from media being paid on to publishers; no split of cost by platform is filed.
against this
  • The integrated share was higher, at 30%, in 2024 and fell to 26% in 2025, so the mix swings rather than trends.
  • Adjusted operating profit margin rose 1.7 points in Q2 2026 despite the mix, so costs elsewhere are falling faster.
current state · 2026-06-30written 2026-09-27
01

The company

A big retailer or bank wants to know who its customers are and reach them at the right moment. Zeta gives it one system for that: it stores the customer records, sends the email and text messages, and buys ads on websites, streaming TV and social media.

What sets it apart is data. Zeta owns a file on more than 245M US adults, so it can recognise people a brand has not identified yet. Forrester ranks it among the three leading email vendors, and Gap moved to it from Salesforce.

The evidence under this - 4 claims
C01facthigh confidence
Zeta sells one platform to large consumer brands: an email and messaging sender, a customer data system, an ad-buying tool, and access to its own identity data on more than 245M US adults. It charges subscription fees, usage and volume fees, and service fees.
current state · 2025-12-31written 2026-09-27
C27factmedium confidence
Zeta was named a Leader in Forrester's Email Marketing Service Providers Wave for Q1 2026, one of three Leaders among 12 vendors, as it was in Q3 2024; Braze was a Strong Performer.
current state · 2026-03-23written 2026-09-27
C28management claimmedium confidence
The CEO says Gap chose Zeta as its system of record under a multiyear agreement, displacing Salesforce and three other vendors.
against this
  • Gap has not disclosed the agreement and its term and value are not stated anywhere.
  • One large win shows Zeta can displace Salesforce; it does not show how often it does.
current state · 2026-08-04written 2026-09-27
C30facthigh confidence
Braze sells a customer engagement platform to brands and names Adobe, Salesforce, Iterable and Klaviyo as rivals. Klaviyo calls itself a B2C CRM for consumer companies, with over 193,000 business customers, and names Braze, Adobe and Salesforce.
current state · 2026-01-31written 2026-09-27

How it makes money

Brands pay a platform fee, plus charges that rise with how many messages they send and how much data they use. When Zeta buys ads for them, it bills the media too and passes most of it on to the publisher.

The money is concentrated: 197 customers pay at least $1M a year, averaging $1.8M a quarter, and one unnamed customer is more than a tenth of revenue.

The evidence under this - 4 claims
C01facthigh confidence
Zeta sells one platform to large consumer brands: an email and messaging sender, a customer data system, an ad-buying tool, and access to its own identity data on more than 245M US adults. It charges subscription fees, usage and volume fees, and service fees.
current state · 2025-12-31written 2026-09-27
C06facthigh confidence
Revenue Zeta earns by running customers' spending through third-party channels such as social media was 28% of Q2 2026 revenue against 25% a year earlier. It was 26% in 2025, 30% in 2024 and 28% in 2023.
historical · Q2 2026 and 2023-2025written 2026-09-27
C18facthigh confidence
Customers paying at least $1M a year rose 17% to 197 at 30 June 2026, and their average revenue in the quarter rose 17% to $1.8M.
historical · Q2 2026written 2026-09-27
C17facthigh confidence
One customer, unnamed, was more than 10% of revenue in 2025 and the first half of 2026, and none was in 2024. 87% of 2025 revenue came from 184 customers paying at least $1M a year.
current state · 2026-06-30written 2026-09-27
Where the money comes from, stream by stream
StreamShare of sales (Q2 2026)How it earns it
Direct platform72%Subscription, usage and service fees earned entirely on Zeta's own platform: email and messaging, the customer data system and its identity data.
Integrated platform28%Fees for running customers' marketing through channels Zeta does not own, such as social media, largely resold ad spending bought for agencies.

Who runs it

David Steinberg co-founded Zeta and has run it since 2007; Chris Greiner has been finance chief since 2020 and Steven Gerber president since 2009. Steinberg owns about a tenth of the company but holds a majority of the votes, so outside shareholders cannot overrule him. Bosses' bonuses ride on sales and a profit measure that ignores pay in shares, and their long-term shares on the stock price; nothing rewards cash left over after share pay.

The evidence under this - 3 claims
C46facthigh confidence
David Steinberg co-founded Zeta, has been on its board since 2007 and is chairman and chief executive; before Zeta he founded and ran InPhonic. Christopher Greiner has been chief financial officer since 2020, after being CFO of LivePerson, and Steven Gerber has been president since 2009, running product, customer success and operations.
current state · 2026-04-24written 2026-10-04
C47facthigh confidence
At the April 17, 2026 record date there were 225,609,644 Class A and 23,638,426 Class B shares. Steinberg held 1,136,629 Class A and every Class B share, 51.4% of the votes and about 9.9% of all shares; the nine directors and officers together held 51.8% of the votes and about 10.7% of the shares. BlackRock held 6.6% of the Class A.
current state · 2026-04-17written 2026-10-04
C48facthigh confidence
Zeta's 2025 annual bonus paid 200% of target to all three named executives because revenue of $1,304.7M and adjusted EBITDA of $278.7M beat the budget; each also got a discretionary cash bonus for closing the Marigold deal. No equity was granted in 2025: the April 2024 PSUs were earned at 190.1% of target on a 20-day average share price of $21.54 and vest through 2027.
against this
  • Adjusted EBITDA adds back stock pay, so the bonus's profit test does not charge the cost that takes nearly all the free cash (C08, C09); the PSUs pay on the share price, and nothing pays on free cash after share pay or on per-share results.
  • In December 2025 the vesting of 205,674 of Steinberg's restricted shares was brought forward two to six months to fund tax on other awards.
historical · 2025written 2026-10-04
02

Why it wins, and who could beat it

Why customers come back

Once a brand's customer records, audiences and years of campaign rules live inside Zeta, leaving means rebuilding all of it and losing Zeta's data. That is why existing customers spent 28% more in 2025 than in 2024.

That figure flatters, though: it counts customers of a company Zeta bought in late 2024 as if they were old ones. And the claim that customers earn $6 to $7 back per $1 spent comes from Zeta, not from any buyer.

The evidence under this - 4 claims
C19factmedium confidence
Net revenue retention was 128.0% in 2025 against 113.6% in 2024: customers from the prior year spent 28.0% more.
historical · 2025written 2026-09-27
C18facthigh confidence
Customers paying at least $1M a year rose 17% to 197 at 30 June 2026, and their average revenue in the quarter rose 17% to $1.8M.
historical · Q2 2026written 2026-09-27
C28management claimmedium confidence
The CEO says Gap chose Zeta as its system of record under a multiyear agreement, displacing Salesforce and three other vendors.
against this
  • Gap has not disclosed the agreement and its term and value are not stated anywhere.
  • One large win shows Zeta can displace Salesforce; it does not show how often it does.
current state · 2026-08-04written 2026-09-27
C33management claimmedium confidence
Management says more than 40% of big customers use its AI agent Athena monthly, customers who use its AI fully bring about 70% of revenue, and big-customer relationships average 56 months against 48 two years ago. It cites Forrester for a 600% to 700% return on marketing spend.
against this
  • None of these figures is filed or defined in a filing, and the heavy AI users may simply be the largest customers already.
  • The return-on-spend figure comes from a study Zeta commissioned, and no buyer publishes one.
current state · 2026-08-04written 2026-09-27

The threat

Salesforce sells the same system bundled with its sales software and AI agents. Braze and Klaviyo sell the messaging part, cheaper. The quietest threat is the agencies, about a fifth of Zeta's revenue: Omnicom now owns Acxiom, a data company, and can keep that work in-house.

The evidence under this - 4 claims
C29facthigh confidence
Salesforce's annual report says its Agentforce includes AI agents for sales, service, marketing and commerce, sold alongside its customer relationship software.
current state · 2026-01-31written 2026-09-27
C30facthigh confidence
Braze sells a customer engagement platform to brands and names Adobe, Salesforce, Iterable and Klaviyo as rivals. Klaviyo calls itself a B2C CRM for consumer companies, with over 193,000 business customers, and names Braze, Adobe and Salesforce.
current state · 2026-01-31written 2026-09-27
C31facthigh confidence
Omnicom's annual report says its agencies run on its own Omni technology platform, including Acxiom's data business acquired with IPG.
current state · 2025-12-31written 2026-09-27
C07management claimmedium confidence
The CFO says cost of revenue rose because agencies adopted the social media channel, and that new agency signings start with social. The CEO says agencies are about 20% of revenue.
against this
  • Adjusted operating profit margin still rose 1.7 points to 20.7% in Q2 2026, so the lower-margin media has not yet dragged the overall margin.
  • Management expects agencies to add higher-margin channels after social, which would reverse the mix.
current state · 2026-08-04written 2026-09-27

The rivals: CRM, BRZE, KVYO, OMC, TTD.

Who else does this, rival by rival
TickerRivalHow far alongPriced against it
CRMSalesforce Marketing Cloud with AgentforcePriced against it: Different productOn saleDifferent product
BRZEBrazePriced against it: YesOn saleYes
KVYOKlaviyo B2C CRMPriced against it: YesOn saleYes
OMCOmnicom's Omni platform with AcxiomPriced against it: Different productOn saleDifferent product
TTDThe Trade DeskPriced against it: One segment onlyOn saleOne segment only
03

How big it could get

How big this could get

US companies spent $294.6B on online ads in 2025, 13.9% more than the year before, and social media grew fastest. Zeta's $1.57B of yearly revenue is about half a percent of that, but nobody measures the software part on its own, so the true size of its market is unknown.

The evidence under this - 2 claims
C25facthigh confidence
IAB and PwC measured US internet advertising revenue at $294.6B in 2025, up 13.9%; social media was $117.7B, up 32.6%, and programmatic buying $162.4B, up 20.5%.
historical · 2025written 2026-09-27
C26facthigh confidence
Zeta's revenue was $1,304.7M in 2025, up 29.7%, and $1,570.9M over the four quarters to Q2 2026; about 91% came from the United States.
historical · 2025 and four quarters to Q2 2026written 2026-09-27

Who has signed

Very little is locked in. Signed work for the next 12 months is $218.7M, against about $1.82B of revenue expected this year. Gap's deal is multiyear with no size given, and the OpenAI, Palantir and Snowflake partnerships carry no amounts at all.

The evidence under this - 3 claims
C20facthigh confidence
At 30 June 2026 Zeta had $218.7M of signed obligations to deliver in the next 12 months and $133.5M after that, against a 2026 revenue guide of about $1.82B.
current state · 2026-06-30written 2026-09-27
C28management claimmedium confidence
The CEO says Gap chose Zeta as its system of record under a multiyear agreement, displacing Salesforce and three other vendors.
against this
  • Gap has not disclosed the agreement and its term and value are not stated anywhere.
  • One large win shows Zeta can displace Salesforce; it does not show how often it does.
current state · 2026-08-04written 2026-09-27
C32management claimmedium confidence
Management says partnerships with OpenAI, Palantir and Snowflake are not in its guidance; OpenAI's models run Athena's voice, Zeta serves ads into OpenAI's ad platform, and two joint Palantir deals were signed.
against this
  • No volume, value or term has been disclosed for any of the three partnerships.
  • OpenAI is also a supplier Zeta pays, and its ad platform lets brands buy directly, so the partner can also compete.
current state · 2026-08-04written 2026-09-27
04

The results

The numbers

Is it growing?Fast

Sales grew 36% over the twelve months to Jun 2026, faster than the 30% in the year to Dec 2025.

Dec 2021: $458MDec 2022: $591MDec 2023: $729MDec 2024: $1.01BDec 2025: $1.30B12 mo to Jun 2026: $1.57B$458M$1.57B
Is it profitable?Thin

Operating margin is 1.6%, up from −23% in the year to Dec 2023.

Dec 2021: −54%Dec 2022: −44%Dec 2023: −23%Dec 2024: −6.8%Dec 2025: 0.4%12 mo to Jun 2026: 1.6%−54%1.6%
Does growth pay off?Pays off

Running costs take 58¢ of each sales dollar, down from 116¢ in the year to Dec 2021.

Dec 2021: 116¢Dec 2022: 107¢Dec 2023: 85¢Dec 2024: 67¢Dec 2025: 60¢12 mo to Jun 2026: 58¢116¢58¢
Does it earn good returns?Poor

Shareholders' money lost 0.3% a year, up from −256% in the year to Dec 2022.

Dec 2022: −256%Dec 2023: −122%Dec 2024: −16%Dec 2025: −4.3%12 mo to Jun 2026: −0.3%−256%−0.3%
Is it making cash?Solid

It turned 14% of sales into free cash, $224M over the last twelve months.

Dec 2021: $34.8MDec 2022: $56.3MDec 2023: $70.0MDec 2024: $108MDec 2025: $185M12 mo to Jun 2026: $224M$34.8M$224M
Is the balance sheet safe?Net cash

It holds $310M of cash against $197M of debt, $112M more cash than it owes.

Dec 2021: −$79.8MDec 2022: −$62.8MDec 2023: −$52.4MDec 2024: $170MDec 2025: $123M12 mo to Jun 2026: $112M−$79.8M$112M
Are shares being diluted?Diluting

The share count rose 195% in 4.5 years, and pay in shares costs 12% of sales.

Dec 2021: 86.9MDec 2022: 139MDec 2023: 157MDec 2024: 186MDec 2025: 221M12 mo to Jun 2026: 257M86.9M257M
All the numbers

Filed figures from the company's 10-K and 10-Q, read 2026-10-04. Fiscal years end in December.

Dec 2021Dec 2022Dec 2023Dec 2024Dec 202512 mo to Jun 2026
Size and growth
Sales$458M$591M$729M$1.01B$1.30B$1.57B
Sales growth+25%+29%+23%+38%+30%+36%
Profit
Gross margin62%64%62%60%61%59%
Operating margin−54%−44%−23%−6.8%0.4%1.6%
Net margin−54%−47%−26%−6.9%−2.4%−0.1%
What growth costs, per sales dollar
Research and development14%12%10%9.0%9.0%9.4%
Sales and marketing50%51%40%31%26%24%
General and admin41%36%28%20%18%17%
Pay in shares57%51%33%19%14%12%
Capital spending2.1%3.8%2.8%2.6%1.1%1.1%
Cash
Cash from operations$44.3M$78.5M$90.5M$134M$199M$241M
Free cash flow$34.8M$56.3M$70.0M$108M$185M$224M
Balance sheet
Cash and short-term investments$104M$121M$132M$366M$320M$310M
Debt$184M$184M$184M$196M$197M$197M
Net cash−$79.8M−$62.8M−$52.4M$170M$123M$112M
Returns and shares
Shares (diluted)86.9M139M157M186M221M257M

What growth costs

Growth is making Zeta more profitable on paper: selling, office and research costs take a shrinking slice of each sales dollar. Most of that improvement is pay in shares fading from its peak after the listing, not cheaper growth. The cost of delivering the service does not shrink, and rises as more sales come from reselling social media ads.

The evidence under this - 3 claims
C44facthigh confidence
Per sales dollar, selling and marketing fell from 50.6 cents in 2022 to 26.1 in 2025 and 24.5 over the four quarters to June 2026, general and administrative from 36.1 to 17.9 and 16.9, research and development from 11.8 to 9.0 and 9.4, and stock pay from 50.6 to 13.6 and 12.4; cost of revenue before depreciation went from 36.5 to 39.4 and 40.5. Operating margin went from minus 43.8% to 0.4% and 1.6%.
against this

The research and development line is the same figure on the income statement and in the filer's tag, but stock pay sits inside every line, so the fall in each line is partly the share awards made around the 2021 listing rolling off rather than cash costs growing slower than sales.

historical · 2022 to the four quarters to June 2026written 2026-10-04
C45inferencemedium confidence
Most of Zeta's cost leverage since 2022 is stock pay shrinking per sales dollar: it fell about 37 cents while the three operating cost lines together fell about 45, and cost of revenue, which carries the media Zeta buys, took a slightly larger share of each sales dollar.
derivedC44's per-sales-dollar lines; stock pay is spread across all the cost lines including cost of revenue, so the comparison is approximate
against this

Even taking stock pay out entirely, the operating cost lines still fell several cents per sales dollar, so some of the leverage is real cash leverage (C44).

historical · 2022 to the four quarters to June 2026written 2026-10-04
C05facthigh confidence
Cost of revenue before depreciation rose 54.7% to $181.0M in Q2 2026, faster than revenue's 43.5%, and $54.2M of the increase was media Zeta bought for customers. It was 40.9% of revenue against 37.9% a year earlier.
historical · Q2 2026written 2026-09-27

The last report (4 Aug)

Quarter ended June 2026, filed figures.

44%
Sales growth
against the same quarter a year earlier
11.7%
Growth from the quarter before
against 0.4% the quarter before that
4¢
Operating profit
per dollar of sales

Q2 2026 looked like another clean beat. Revenue was $442.8M, Zeta made a small profit under the official accounts, and it raised its forecast for the year again.

Underneath, the mix shifted. The cost of delivering revenue grew 54.7%, faster than sales, because agencies bought more social media ads through Zeta, and the share of revenue earned that way rose from 25% to 28%. Shares handed to staff still cost $52.1M, about 12 cents of every revenue dollar.

What it did to the thesisIt confirmed the growth is real, even without the business it bought. It also showed the two drags the view rests on: lower-margin resold ads are a growing share of revenue, and pay in shares still takes a large slice, so owners get less than the headline suggests.

The quarter in detail

Sales growth from the previous quarter, filed figures.

Earnings per share $0.21 against $0.20 expected; $0.03 as filed, the gap being what the company adds back.

The evidence under this - 6 claims
C02facthigh confidence
Revenue was $442.8M in Q2 2026, up 43.5% from $308.4M. Marigold's enterprise business, bought in November 2025, added $48.1M, so revenue without it was $394.7M, up 28.0%.
historical · Q2 2026written 2026-09-27
C05facthigh confidence
Cost of revenue before depreciation rose 54.7% to $181.0M in Q2 2026, faster than revenue's 43.5%, and $54.2M of the increase was media Zeta bought for customers. It was 40.9% of revenue against 37.9% a year earlier.
historical · Q2 2026written 2026-09-27
C06facthigh confidence
Revenue Zeta earns by running customers' spending through third-party channels such as social media was 28% of Q2 2026 revenue against 25% a year earlier. It was 26% in 2025, 30% in 2024 and 28% in 2023.
historical · Q2 2026 and 2023-2025written 2026-09-27
C07management claimmedium confidence
The CFO says cost of revenue rose because agencies adopted the social media channel, and that new agency signings start with social. The CEO says agencies are about 20% of revenue.
against this
  • Adjusted operating profit margin still rose 1.7 points to 20.7% in Q2 2026, so the lower-margin media has not yet dragged the overall margin.
  • Management expects agencies to add higher-margin channels after social, which would reverse the mix.
current state · 2026-08-04written 2026-09-27
C08facthigh confidence
Stock-based pay was $177.8M in 2025, 13.6% of revenue, against free cash flow of $164.7M. In the first half of 2026 it was $105.1M, 12.5% of revenue, and $52.1M in Q2 2026, 11.8%.
historical · 2025 and H1 2026written 2026-09-27
C40facthigh confidence
Zeta earned GAAP operating income of $16.9M and net income of $8.2M in Q2 2026, and $5.4M of operating income in all of 2025; adjusted operating profit before depreciation was $278.7M in 2025.
historical · 2025 and Q2 2026written 2026-09-27
What management did with the money

Insiders in 2026Q2: 3 purchases and 11 sales, from their Form 4 filings.

05

The price, and where we disagree

In short. Full. A fair price for the growth if you ignore pay to staff in shares, but owners only get paid if that share pay falls sharply.

Share price
$29.45
close,
Price for each $1 of spare cash
32.8
rivals' middle 26.0
Spare cash as a share of the price
3.0%
its 6-year normal 3.5%

The price rose 83.2% in six months, and most of that was buyers paying more for each dollar of sales rather than sales growing. Two tests are close. On 3 November Zeta reports Q3 2026, where it has forecast growth without acquisitions of 23% to 24%. And the lawsuit over its data is now in discovery, where documents come out.

The evidence under this - 3 claims
C13facthigh confidence
Over the 126 sessions to 25 September 2026 the price rose 83.2% while sales per share rose 20.4%, so buyers paying more per dollar of sales accounts for a 52.1% rise.
historical · 2026-03-26 to 2026-09-25written 2026-09-27
C03management claimmedium confidence
Management guides Q3 2026 revenue to $469M-$472M, up 39% to 40%, and 23% to 24% without acquisitions and political candidate revenue. Full-year 2026 is guided to $1,811M-$1,824M, 24% to 25% on the same basis.
against this
  • The Q3 own-growth guide of 23% to 24% is below the 28% Q2 just delivered, so a slowdown is built into management's own numbers.
  • Management says it builds a 2% to 5% cushion into guidance, so the guide is a floor it expects to beat, not a forecast.
forwardwritten 2026-09-27
C16facthigh confidence
A securities class action based partly on Culper's report survived Zeta's motion to dismiss on 8 July 2026 and has moved to discovery. The company says the claims are without merit and cannot estimate a loss.
current state · 2026-08-05written 2026-09-27
How we read the multiple

Buyers pay about 29 times the spare cash Zeta expects this year, the cash left after running and investing in the business. After paying staff in shares, very little is left: about 164 times.

For the price to look fair by 2028:

  1. Cash left after share pay must reach about $296M.
  2. Over the last year it was about $8M.
  3. Getting there needs Zeta to beat its own 2028 plan and cut share pay to around 5% of sales.

Against its own history. Buyers now pay more than twice what they usually have for each dollar of Zeta's sales, so the recent rise was mostly enthusiasm.

The evidence under this - 4 claims
C10estimatemedium confidence
At $29.45 on 251.0M shares Zeta's market value is about $7.39B: 36.5 times trailing free cash flow, 29.0 times the 2026 guide's $255.3M, and about 164 times that guide less about $210M of 2026 share pay.
against this
  • Most coverage and the company itself quote free cash flow before share pay, on which 29.0 times the 2026 guide for a company growing 28% on its own is not extreme.
  • Net cash of about $110M lowers what a buyer pays for the business by about 1.5%.
  • The $210M of 2026 share pay is my doubling of the first half; the company gives no share pay guide.
current state · 2026-09-25written 2026-09-27
C11estimatemedium confidence
For buyers to pay 25 times free cash flow after share pay in 2028, that figure must reach about $296M, against the company's own 2028 target of no less than $371M of free cash before share pay.
derived$7.39B (C10) divided by 25 is $296M. The 2028 targets (C12) give $371M of free cash on $2.3B or more of revenue; share pay at 10% of $2.3B is $230M, leaving $141M. Reaching $296M needs share pay near $75M, about 3% of revenue, or free cash well above plan.
against this
  • At 23% a year from the 2026 guide, 2028 revenue would be about $2.75B, well above the $2.3B target, so free cash could beat $371M.
  • Share pay has fallen from 13.6% to 11.8% of revenue in a year, and a further fall to 5% by 2028 is not impossible.
forwardwritten 2026-09-27
C12management claimmedium confidence
Zeta's 2028 targets are revenue of no less than $2.3B, adjusted operating profit before depreciation of no less than $573M and free cash flow of no less than $371M, a 16% margin.
against this
  • The $2.3B target implies only about 12.5% a year from the $1.82B 2026 guide, so the plan is either conservative or already assumes a sharp slowdown.
  • The targets were set before the 2026 guide was raised three times and have not been restated since February 2026.
forwardwritten 2026-09-27
C09estimatehigh confidence
Over the four quarters to Q2 2026 free cash flow was about $202.6M and stock-based pay about $194.5M, so free cash flow after share pay was about $8.1M.
derivedFree cash flow: $164.7M in 2025 (operating cash $198.9M less $13.8M capital spending, $20.1M capitalised software and $0.3M currency) less $61.8M in H1 2025 plus $99.6M in H1 2026. Share pay: $177.8M less $88.5M plus $105.1M.
against this
  • Buybacks of $55.6M in the first half of 2026 already offset part of the dilution, so counting both the expense and the buyback cash would double-count.
  • Share pay is falling as a share of revenue, from 13.6% in 2025 to 11.8% in Q2 2026.
historical · four quarters to Q2 2026written 2026-09-27
Priced against its rivals

The competitors its own annual report names, each confirmed against the rival's filing. Measured on price for each $1 of spare cash, cheapest first:

TickerCompanyprice for each $1 of spare cash
KVYOKlaviyo19.3×
BRZEBraze32.8×
ZETAZeta Global Holdings32.8×

The middle of the other 2 is 26.0. Zeta Global Holdings Corp. is 2nd cheapest of 3.

Rivals' figures come from a data provider, so read the spread of the group rather than any single pair.

Braze and Klaviyo, its closest rivals, cost less for each dollar of sales, and they also pay staff heavily in shares.

Also checked and set aside: Adobe (a substitute, not the same product).

Where we disagree with the market

The market believes

Zeta is an AI platform that will keep growing above 20% a year, so it deserves a much higher price than a year ago.

We believe

The growth is real, but resold ads and share pay mean each share gets far less of it than revenue suggests.

The market is paying for growth and the new AI tools. On the last call nobody asked about share pay, about resold ads or about the lawsuit.

We may be wrong if share pay keeps falling as quickly as it did this year, from 13.6% of revenue to 11.8%, while growth stays above 20%. Then the cash left for owners would grow far faster than revenue.

What analysts say, and the evidence
Analysts positive
80%
of 15, 1 Sep
Four months earlier
86%
of 14, 1 May
The evidence under this - 5 claims
C34facthigh confidence
Of 16 analysts in the vendor's snapshot, 12 rate Zeta a buy, 4 a hold and none a sell; the dated series shows 80.0% positive of 15 on 1 September 2026 against 85.7% of 14 on 1 May.
current state · 2026-09-01written 2026-09-27
C13facthigh confidence
Over the 126 sessions to 25 September 2026 the price rose 83.2% while sales per share rose 20.4%, so buyers paying more per dollar of sales accounts for a 52.1% rise.
historical · 2026-03-26 to 2026-09-25written 2026-09-27
C42facthigh confidence
No analyst on the Q2 2026 call asked about share pay, the media mix or the class action; the questions were about partnerships, Athena, agencies and political revenue.
historical · Q2 2026written 2026-09-27
C09estimatehigh confidence
Over the four quarters to Q2 2026 free cash flow was about $202.6M and stock-based pay about $194.5M, so free cash flow after share pay was about $8.1M.
derivedFree cash flow: $164.7M in 2025 (operating cash $198.9M less $13.8M capital spending, $20.1M capitalised software and $0.3M currency) less $61.8M in H1 2025 plus $99.6M in H1 2026. Share pay: $177.8M less $88.5M plus $105.1M.
against this
  • Buybacks of $55.6M in the first half of 2026 already offset part of the dilution, so counting both the expense and the buyback cash would double-count.
  • Share pay is falling as a share of revenue, from 13.6% in 2025 to 11.8% in Q2 2026.
historical · four quarters to Q2 2026written 2026-09-27
C37inferencemedium confidence
More of Zeta's growth now comes from reselling social media ads to agencies, which keeps about half as much of each dollar as its own software and data.
derivedCost of revenue grew 54.7% against revenue's 43.5% (C05), media was $54.2M of the rise (C05), the integrated share rose three points (C06), and the CFO ties it to agency social buying (C07). 'About half as much' is my inference from media being paid on to publishers; no split of cost by platform is filed.
against this
  • The integrated share was higher, at 30%, in 2024 and fell to 26% in 2025, so the mix swings rather than trends.
  • Adjusted operating profit margin rose 1.7 points in Q2 2026 despite the mix, so costs elsewhere are falling faster.
current state · 2026-06-30written 2026-09-27
06

What could go wrong, and how we would know

The risks

  • The data lawsuit. A court let a lawsuit over Zeta's data gathering go ahead in July 2026. Anything damaging found in discovery hits the data Zeta sells.
  • Lower-quality growth. More growth comes from buying social ads for agencies, which leaves Zeta less of each dollar than its own software.
  • One big customer. An unnamed customer is more than a tenth of revenue, and most customers are not locked into long contracts.
  • Owners' slice keeps shrinking. Shares outstanding rose 5.5% in a year despite buybacks, partly to pay for acquisitions.
  • One holder controls the votes. The chief executive holds most of the votes through ten-vote shares, so outside owners cannot outvote him.
The evidence under this - 6 claims
C16facthigh confidence
A securities class action based partly on Culper's report survived Zeta's motion to dismiss on 8 July 2026 and has moved to discovery. The company says the claims are without merit and cannot estimate a loss.
current state · 2026-08-05written 2026-09-27
C38inferencemedium confidence
Culper's allegations go to the identity data that Zeta sells as its advantage, so evidence produced in discovery could damage the product as well as cost money.
derivedThe 10-K describes the identity data set as a core pillar (C01); the class action rests partly on Culper's data-practice claims (C15, C16).
against this
  • A motion to dismiss tests only whether the complaint is plausible, not whether it is true, and no regulator has acted on the data claims.
  • Revenue grew 29.7% in 2025 after the report, so customers did not leave on it.
forwardwritten 2026-09-27
C37inferencemedium confidence
More of Zeta's growth now comes from reselling social media ads to agencies, which keeps about half as much of each dollar as its own software and data.
derivedCost of revenue grew 54.7% against revenue's 43.5% (C05), media was $54.2M of the rise (C05), the integrated share rose three points (C06), and the CFO ties it to agency social buying (C07). 'About half as much' is my inference from media being paid on to publishers; no split of cost by platform is filed.
against this
  • The integrated share was higher, at 30%, in 2024 and fell to 26% in 2025, so the mix swings rather than trends.
  • Adjusted operating profit margin rose 1.7 points in Q2 2026 despite the mix, so costs elsewhere are falling faster.
current state · 2026-06-30written 2026-09-27
C17facthigh confidence
One customer, unnamed, was more than 10% of revenue in 2025 and the first half of 2026, and none was in 2024. 87% of 2025 revenue came from 184 customers paying at least $1M a year.
current state · 2026-06-30written 2026-09-27
C21facthigh confidence
Zeta's Class B shares carry ten votes each, and the chief executive, David Steinberg, holds a majority of the votes, making Zeta a controlled company under NYSE rules.
current state · 2025-12-31written 2026-09-27
C23facthigh confidence
Shares outstanding including unvested restricted stock rose 5.5% in a year, from 237.4M at 30 June 2025 to 250.4M at 30 June 2026. That included 3.9M shares for Marigold's seller notes and 0.7M for a LiveIntent earn-out, net of 3.2M bought back for $55.6M.
historical · 2025-06-30 to 2026-06-30written 2026-09-27
What we still do not know
  • How much of revenue is ad space Zeta buys and passes on, rather than its own software and data. It does not say.
  • Who the customer above a tenth of revenue is.
  • What discovery in the lawsuit shows about how Zeta collects consumer data.
  • What share pay will be for 2026 as a whole; Zeta gives no forecast for it.
The evidence under this - 4 claims
C06facthigh confidence
Revenue Zeta earns by running customers' spending through third-party channels such as social media was 28% of Q2 2026 revenue against 25% a year earlier. It was 26% in 2025, 30% in 2024 and 28% in 2023.
historical · Q2 2026 and 2023-2025written 2026-09-27
C17facthigh confidence
One customer, unnamed, was more than 10% of revenue in 2025 and the first half of 2026, and none was in 2024. 87% of 2025 revenue came from 184 customers paying at least $1M a year.
current state · 2026-06-30written 2026-09-27
C16facthigh confidence
A securities class action based partly on Culper's report survived Zeta's motion to dismiss on 8 July 2026 and has moved to discovery. The company says the claims are without merit and cannot estimate a loss.
current state · 2026-08-05written 2026-09-27
C08facthigh confidence
Stock-based pay was $177.8M in 2025, 13.6% of revenue, against free cash flow of $164.7M. In the first half of 2026 it was $105.1M, 12.5% of revenue, and $52.1M in Q2 2026, 11.8%.
historical · 2025 and H1 2026written 2026-09-27

What would change our view

  1. Neutral→AttractiveThe price falls on an unchanged business

    It needs all of:

    • ○The market value falls to 25 times the past year's spare cash before share pay, from about 36.5 today.about $20.17 today, 32% below the last close
    • ○Growth without acquisitions or election ads stays at 20% or more.checked at the next results, due by 3 Nov
  2. Neutral→AttractiveShare pay falls while growth holds

    It needs all of:

    • ○Shares paid to staff fall below 8 cents of every revenue dollar in a quarter, from 11.8 now.checked at the next results, due by 3 Nov
    • ○Growth without acquisitions or election ads stays at 20% or more.checked at the next results, due by 3 Nov
  3. Neutral→UnattractiveOwn growth stalls or the data case goes against Zeta

    It needs any of:

    • ○Growth without acquisitions or election ads falls below 15%.checked at the next results, due by 3 Nov
    • ○A court or regulator finds Zeta gathered consumer data without proper consent.watched as it happens
We would also be wrong if
  • The cost of delivering revenue passes 45% of sales for a full year: resold ads are taking over.
  • Share pay stays above 10% of revenue through 2027.

What is coming

  • 3 November 2026 Q3 2026 results: Whether own growth holds at 23% or more with cost of revenue at 41% of sales or less, and whether net dilution stays inside the 3% to 4% target.
Every dated event ahead
  • 3 November 2026 Q3 2026 results: Whether own growth holds at 23% or more with cost of revenue at 41% of sales or less, and whether net dilution stays inside the 3% to 4% target.
  • February 2027 Q4 2026 results and the 2027 guide: Whether 2027 share pay falls as a share of revenue toward the 2028 plan, and whether growth holds once political candidate revenue drops out.
Since we wrote this
Written
27 Sep
Price the thesis read
$29.45
25 Sep
  • 6 OctNewsZeta agrees to buy Senso, an AI engineering firm, price unread. View heldZeta Global agrees to acquire Senso.
  • 5 OctThesis reviewThe long case now sits under the verdictAfter the five-name pilot, the owner asked for the long case on every thesis.
  • 4 OctThesis reviewOwner's checklist: revenue streams, cost of growth, management, catalystsThe owner's checklist found the method silent on who runs the company, what growth costs, where the money comes from and what is dated ahead; this pass fills those four blocks from the proxy and filings.
  • 27 SepThesis writtenNeutral, medium convictionGrowth is real and mostly Zeta's own, but share pay takes nearly all the free cash and the fastest-growing part is resold ads, so the price is full.

Also checked 4 times with nothing new to act on.

Sources 20

Where this came from

Sources - 20

Every claim above cites one of these, or states the reasoning that derived it. The quote is frozen at the date it was read: a link can rot, and an agent fetch returns a reading of a page rather than the page. Backs counts the whole claim ledger, so it can name a claim this page does not surface.

  1. S01primarycompany filing2026-02-25
    Item 1 business description, customers by industry, super-scaled share of revenue, competition (classes only), risk factors, legal proceedings naming Culper Research, direct and integrated revenue mix 2023-2025, net revenue retention, customer concentration note, dual-class voting, headcount
    backsC01C06C15C16C17C19C21C26C39C43C44C49
  2. S02primarycompany filing2026-08-05
    MD&A revenue and cost bridge, Marigold contribution, media costs, direct/integrated mix, super-scaled metrics, remaining performance obligations, acquisition liabilities, credit facility, statement of equity and share issuance, legal proceedings update
    backsC01C02C05C06C08C10C16C17C18C20C22C23C26C40C43C44C49
  3. S03primarycompany filing2026-08-04
    statements, adjusted EBITDA and free cash flow reconciliations, revenue excluding acquisitions by quarter, Q3 and 2026 guidance
    backsC02C03C04C08C10C40
  4. S04primarytranscript2026-08-04
    Q2 2026 earnings call transcript (FMP)
    data/cache/transcripts/ZETA-2026Q2.json
    own growth, AI adoption figures, Gap win, partnerships, agencies at about 20% of revenue, social channel driving cost of revenue, buyback and dilution target; 17 analyst turns from 8 analysts, none on share pay, the mix or the lawsuit
    For Q2, revenue came in at $443 million up 44% year over year or 28% excluding M&A.
    backsC03C07C24C28C32C33C42
  5. S05primarycompany filing2026-02-24
    2025 free cash flow, share pay, adjusted EBITDA, February 2026 guidance and the Zeta 2028 targets
    backsC04C08C12C40
  6. S06primarycompany filing2026-07-27
    $250M term loan A and $750M undrawn revolver replacing the $550M facility; stated uses include acquisitions and buybacks
    backsC22
  7. S07secondaryvendor data2026-09-27
    ZETA research pack (FMP market tier, FINRA, SEC XBRL), frozen
    content/ZETA/research-pack.json
    price, price-move decomposition, valuation history, consensus, short interest, filed cohort multiples for Braze and Klaviyo, headcount series
    backsC10C13C14C26C34C35C39C41
  8. S08tertiarynews2024-11-13
    the date and substance of Culper Research's report as reported at the time
    backsC15
  9. S09primaryindustry data2026-04-16
    US internet ad revenue, social $117.7B up 32.6% and programmatic $162.4B up 20.5%, confirmed on the PR Newswire copy of the same release
    reaching $294.6 billion in 2025, reflecting a 13.9% year-over-year increase
    backsC25
  10. S10primarycompany filing2026-03-02
    Agentforce agents across sales, service, marketing and commerce
    backsC29
  11. S11primarycompany filing2026-03-25
    customer engagement platform; rivals named: Adobe, Salesforce, Iterable, Klaviyo
    backsC30
  12. S12primarycompany filing2026-02-10
    B2C CRM for consumer companies, over 193,000 businesses; rivals named: Mailchimp, Braze, Adobe, Salesforce
    backsC30
  13. S13secondarycompany release2026-03-23
    Zeta's placement; the report itself is paywalled
    Zeta is proud to be named a Leader in The Forrester Wave™: Email Marketing Service Providers Q1 2026.
    backsC27
  14. S14secondarycompany release2026-03-23
    a rival's account of the same Wave: three Leaders of 12
    The report places Cordial among three Leaders out of the 12 vendors evaluated.
    backsC27
  15. S15secondaryvendor data2026-09-27
    IBKR weekly price history, ZETA, September 2024 to September 2026
    IBKR get_price_history, contract 495763832
    weekly closes around the November 2024 short report and the April 2025 low
    backsC15
  16. S16primarycompany filing2026-02-20
    the Omni platform including Acxiom, acquired with IPG
    backsC31
  17. S17primarycompany filing2026-09-27
    two discretionary director sales, no purchases, gifts by the CEO, CFO and president
    backsC36
  18. S18primarycompany filing2024-11-18
    the company's response to the short report: a webinar on accounting controls, data collection and privacy
    backsC15
  19. S19primarycompany filing2026-04-24
    executive officers and their tenure, beneficial ownership and voting power at the April 17, 2026 record date, the 2025 bonus metrics and payout, the 2024 PSUs' share-price test, the Marigold deal bonus and the December 2025 vesting change
    backsC46C47C48
  20. S20primarycompany filing2024-02-28
    the 2022 and 2023 income statements: cost of revenue, general and administrative, selling and marketing, and research and development
    backsC44
Rendered from content/ZETA/thesis.json · thesis reviewed 2026-09-27. This page explains a company; it does not say what to pay, when to buy or how much.