PUBM · PubMatic
Conviction · Medium · more likely to lead the S&P 500 over the next three months, by a modest margin
Wrong if: a weekly close below $16.75
Note written ·
Price against the kill line
23.0% clear of its kill line on the 13 November 2026 close.
How to read this
The red mark is the price level of the published kill line: a close through it (a weekly close, on a weekly line) would prove the research note wrong on price. The dot is where the stock closed on 13 November 2026; a dot left of the mark has closed through its line.
The scale is stretched near the line, so close calls are easy to see. More than 8% from the line, the stock reads well clear, with a hollow dot to show the figure is off the drawn scale.
The kill line is the research note's own test. The portfolio sells on business facts, not on a price. How the portfolio decides
Three months against the kill line
Daily closes, to . Red: the kill line, a weekly close below $16.75, on record since 11 November 2026; only a weekly close settles it. The shares are up 19.3% since the close; the S&P 500 is down 2.1% over the same sessions. Figures in the note can cover a different window.
Kill line
A weekly close below $16.75, under the $16.78 close of 5 November 2026 before the run into the Q3 report, which would show the beat fully given back; separately, Q4 2026 revenue below the $91 million guidance floor set on 9 November 2026.
Research onlyNot in the portfolio.
Catalyst
Key figures from the filings · Technology
Quarter to 30 September 2026, filed 9 November 2026; valuation at the 13 November 2026 close
- Revenue, latest quarter ($M)
- 79.6
- Revenue, change on a year (%)
- +17.1
- Gross margin (%)
- 69.9
- Operating margin (%)
- 11.0
- Free cash flow, four quarters ($M)
- 66.7
- Net cash, cash less debt ($M)
- 145
- Enterprise value to sales (×)
- 3.0
- Enterprise value to operating income (×)
- 347.3
All filed numbers
What PubMatic reports to the SEC in its quarterly and annual filings. Each group states its period and filing date once; a figure dated otherwise says so. Built from the filings known on .
| Quarter to | Revenue ($M) | On a year (%) | Gross margin (%) | Operating margin (%) |
|---|---|---|---|---|
| first filed | 79.6 | +17.1 | 69.9 | 11.0 |
| first filed | 78.6 | +10.5 | 67.1 | 0.7 |
| first filed | 62.6 | −2.0 | 58.3 | −24.4 |
| first filed | 80.0 | −6.4 | 68.2 | 10.6 |
| first filed | 68.0 | −5.3 | 62.6 | −12.4 |
| first filed | 71.1 | +5.7 | 62.6 | −7.7 |
| Pre-tax income ($M) | 9.9 |
| Net income ($M) four quarters: −1.5 | 5.5 |
| Diluted shares, change on a year (%) against the quarter to 30 September 2025 | +9.8 |
| Operating cash flow ($M) | 86.5 |
| Capital spending ($M) | 19.8 |
| Free cash flow ($M) | 66.7 |
| Cash and short-term investments ($M) | 145 |
| Debt ($M) | None reported |
| Net cash, cash less debt ($M) no debt reported | 145 |
| Deferred revenue ($M) | Not reported |
| Backlog, orders not yet delivered ($M) | Not reported |
| Receivables ($M) | 381 |
| Inventory ($M) | Not reported |
| Shareholders' equity ($M) | 242 |
| Market value ($M) | 1,039 |
| Enterprise value, market value plus net debt ($M) no debt reported | 895 |
| Enterprise value to sales (×) no debt reported | 3.0 |
| Enterprise value to operating income (×) no debt reported | 347.3 |
| Price to earnings (×) | Not meaningful |
| Price to book value (×) | 4.3 |
| Free-cash-flow yield (%) | 6.4 |
Short interest (FINRA, settled 15 October 2026, published 26 October 2026): 6.1% of shares outstanding sold short, 4.7 days of average trading to cover, +13.1% since the previous report.
| Window | Bought | Sold |
|---|---|---|
| 90 daysfrom | $0 | $6.6M |
| 12 monthsfrom | $0 | $23.1M |
The thesis
PubMatic's Q3 2026 report showed a revenue recovery led by connected TV (CTV), and the shares have recovered the one-day selloff that followed it. The rating is Medium because the business beat its own guidance on revenue and profit while the price sits only 2.4% under its 52-week high. The fourth-quarter report, expected in late February 2027, settles the case: revenue has to reach at least the $91 million guidance floor.
The company reported on 9 November 2026 in its 8-K. Q3 revenue was $79.6 million, up 17% year over year, against guidance of $75–77 million and a $76.12 million consensus cited by Benzinga. Adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) were $26.0 million, a 33% margin, against $11.2 million a year earlier.
The shares closed at $19.03 on 9 November 2026, fell to $16.95 on 10 November 2026, then closed at $18.31 on 11 November 2026 and $19.02 on 12 November 2026, per adjusted daily closes. At $19.02 the price already reflects much of the recovery: MarketBeat's consensus target was $20.73 on 10 November 2026. What remains is a fourth quarter that matches the guidance.
Bullish and bearish views on PubMatic, Inc.
The bull case on PubMatic, Inc. (PUBM), in brief: revenue and profit beat guidance. The bear case: the report drew a sharp one-day selloff.
Bull case
- Revenue and profit beat guidance. Q3 2026 revenue rose 17% to $79.6 million, and GAAP net income was $5.5 million, or $0.11 per diluted share, against a $6.5 million loss a year earlier, per the 9 November 2026 8-K. The 10-Q filed the same day shows quarterly revenue of $79.58 million against $67.96 million a year earlier.
- Connected TV growth accelerated sharply. Global CTV revenue grew more than 30% in Q3 to about 21% of revenue, up from 13% growth in Q2, per the 8-K. Americas CTV grew more than 40%.
- Growth channels now dominate revenue. Mobile app revenue grew nearly 40% to about 27% of revenue, and emerging revenue more than doubled to about 18%, per the 8-K. Together with CTV, these channels made up about 64% of Q3 revenue, against about 60% in Q2.
- The outlook moved up. Q4 2026 guidance is $91–93 million in revenue and $31–33 million in adjusted EBITDA, per the 8-K. Full-year revenue guidance of $312–314 million compares with a $308.585 million estimate, per Benzinga on 9 November 2026.
- Buyback is large against the company's value. On 9 November 2026 the board added $150 million to the repurchase program through 31 December 2028, bringing about $198 million to buybacks, per the 8-K. The company held $144.5 million in cash and marketable securities with no debt at 30 September 2026.
- Four firms raised targets after the report. On 10 November 2026 Rosenblatt raised its target to $25 from $23, B. Riley to $24 from $21 and RBC to $22, per MarketBeat and Benzinga. Lake Street kept its Buy rating and raised its target to $23 from $20 on 11 November 2026.
- A new demand channel opened in AI chat. PubMatic and Magnite signed agreements with OpenAI to place and manage advertising on ChatGPT, reported on 2 November 2026.
Bear case
- The report drew a sharp one-day selloff. The stock slipped to $18.28 after hours on 9 November 2026, per Investing.com, and closed at $16.95 on 10 November 2026. The beat was largely priced in before the release, and the shares have since swung back to $19.02 without new company news.
- The Q4 guide only matches estimates. Benzinga put Q4 revenue consensus at $91.309 million on 9 November 2026, inside the $91–93 million guided range. Q4 is the largest ad-spending quarter, so most of the full-year raise rests on it.
- Senior executives sold through October. SEC Form 4 filings show Chief Executive Rajeev Goel sold 50,233 shares at an average $18.97 on 2 October 2026 and 50,021 shares at $17.26 on 22 October 2026. CFO Steven Pantelick sold 22,173 shares and Chairman Amar Goel 10,795 shares, both at $18.66 on 5 October 2026; most sales ran under Rule 10b5-1 plans.
- The ChatGPT work has no disclosed revenue. The Q3 release on 9 November 2026 gave no revenue figure for the OpenAI agreements reported on 2 November 2026.
- Finance leadership is in transition. CFO Steven Pantelick serves into Q1 2027, and no successor had been named as of the 9 November 2026 release.
Price setup
The shares closed at $19.02 on 12 November 2026, 2.4% below the 52-week intraday high of $19.48 set on 2 October 2026. The price is up 8.1% over three months against the $17.59 close of 14 August 2026. The 50-day moving average stands at $17.52 and the 200-day at $12.54, both as of 12 November 2026, so the shares trade above both.
The nearest reference below the market is the $16.78 close of 5 November 2026, before the run into the report; the $16.95 close of 10 November 2026 held just above it. A move back under that range would mean the whole pre-report run and the beat had been given back. Above, the $19.48 high of 2 October 2026 is the level the shares have not cleared. The 52-week closing low of $6.28 on 5 February 2026 shows how far the recovery has already carried the price.
Catalysts ahead
- 27 November 2026: Black Friday, followed by Cyber Monday on 30 November 2026. Holiday retail ad spending is the core of the Q4 quarter guided at $91–93 million in revenue.
- ~25 February 2027 (est.): Q4 2026 results. Shows whether revenue reached the $91–93 million guidance, whether CTV growth above 30% held, and whether a CFO successor has been named.
What would change the view
A weekly close below $16.75, under the $16.78 close of 5 November 2026 before the run into the Q3 report, which would show the beat fully given back; separately, Q4 2026 revenue below the $91 million guidance floor set on 9 November 2026.
The risks this note tracks, each with what would confirm it:
- Q4 revenue misses the company's own guidance floor in the seasonally largest quarter. Confirmed by: reported Q4 2026 revenue below $91 million, or a full-year figure below the $312 million low end of guidance.
- The CTV acceleration proves temporary. Confirmed by: global CTV growth in Q4 2026 falling back toward the 13% rate reported for Q2 2026.
- A major demand-side platform cuts spending routed through PubMatic, as happened before the August 2025 guidance cut. Confirmed by: the company citing a demand-side partner change in Q4 commentary or lowering guidance.
- The finance leadership transition disrupts reporting or capital allocation. Confirmed by: no CFO successor named by the Q4 2026 report, with Steven Pantelick due to leave the role in Q1 2027.
- Ad-tech peers weaken and pull the group's shares lower regardless of PubMatic's own results. Confirmed by: Magnite or The Trade Desk cutting Q4 or 2027 guidance before PubMatic reports.
What it trades with
PubMatic trades with other ad-tech names. Magnite is its closest public peer and a fellow OpenAI partner. The Trade Desk rose 27.1% to $18.98 after hours on 9 November 2026 following its own Q3 results, per Benzinga, the same session PubMatic reported. The shares also respond to interest-rate expectations and to holiday-season retail ad spending, which drives Q4 revenue.
The evidence, claim by claim (8)
- Q3 2026 revenue was $79.6 million, up 17% year over year; GAAP net income was $5.5 million ($0.11 per diluted share) against a $6.5 million loss a year earlier. PubMatic Q3 2026 results release (8-K), 9 November 2026 · as of
- Q3 2026 adjusted EBITDA was $26.0 million, a 33% margin, against $11.2 million (16%) a year earlier and $17–19 million guidance. PubMatic Q3 2026 results release (8-K), 9 November 2026 · as of
- Global CTV revenue grew more than 30% year over year to about 21% of revenue in Q3 2026, up from 13% growth in Q2; Americas CTV grew more than 40%. PubMatic Q3 2026 results release (8-K), 9 November 2026 · as of
- Q4 2026 guidance is revenue of $91–93 million and adjusted EBITDA of $31–33 million; full-year revenue guidance is $312–314 million against a $308.585 million estimate. PubMatic 8-K and Benzinga headlines, 9 November 2026 · as of
- Board added $150 million to the buyback through 31 December 2028, bringing about $198 million to repurchases; cash and marketable securities were $144.5 million with no debt. PubMatic Q3 2026 results release (8-K), 9 November 2026 · as of
- Rosenblatt raised its target to $25 from $23, B. Riley to $24 from $21 and RBC to $22 on 10 November 2026; Lake Street raised its target to $23 from $20 on 11 November 2026. MarketBeat and Benzinga analyst headlines, 10 November 2026 and 11 November 2026 · as of
- CEO Rajeev Goel sold 50,233 shares at an average $18.97 on 2 October 2026 and 50,021 shares at $17.26 on 22 October 2026, the latter under a Rule 10b5-1 plan. SEC Form 4 filings dated 5 October 2026 and 23 October 2026 · as of
- PubMatic and Magnite entered agreements with OpenAI to place and manage advertising on ChatGPT. Company news reported 2 November 2026; eMarketer · as of
Sources
- PubMatic, Inc. - Form 8-K - FY2026 · sec.gov
- PubMatic Q3 2026 Earnings Call Transcript · benzinga.com
- PubMatic (NASDAQ:PUBM) Stock Price Expected to Rise, Rosenblatt Securities Analyst Says · marketbeat.com ·
- PubMatic (NASDAQ:PUBM) Price Target Raised to $24.00 · marketbeat.com ·
- PubMatic (NASDAQ:PUBM) Given New $22.00 Price Target at Royal Bank Of Canada · dailypolitical.com ·
- PubMatic (NASDAQ:PUBM) Stock Price Down 8.7% - Here's What Happened · marketbeat.com ·
- Earnings call transcript: PubMatic tops Q3 2026 estimates, shares slip after hours · au.investing.com
- OpenAI taps Magnite and PubMatic to make ChatGPT ads easier to buy at scale, sources say · emarketer.com
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