Criteo today said its shares will enter the MSCI Global Investable Market Indexes for the first time, with the change taking effect as of the close of trading on November 30, 2026. The Nasdaq-listed advertising technology company, which now describes itself as a global commerce intelligence platform, made the announcement from New York through PR Newswire, a day after MSCI published the results of its November 2026 Index Review.

The release does not name the indexes involved. According to Criteo, "within the broader MSCI Global Investable Market Indexes series, Criteo is expected to be included in several global and U.S. indexes." The company says the move should raise its visibility among institutional investors and "create an opportunity to broaden its shareholder base over time." It gives no expected index weight, no estimate of how many shares tracking funds would need to buy, and no indication of which size segment, from large cap to micro cap, Criteo will sit in.

In Short

Criteo, a company that sells advertising based on shopping data, is being added to stock market indexes run by MSCI for the first time, starting at the close of trading on November 30. Funds that copy those indexes generally buy the shares of new members, which could widen the group of investors that own Criteo at a time when its revenue and profits are falling. Nothing changes in Criteo's products, but the inclusion arrives 47 days before shareholders vote on moving the company's legal home to the US, a step Criteo has repeatedly tied to wider index access.

What Criteo and MSCI disclosed

The announcement is short. Its substance sits in three paragraphs and a quote from chief financial officer Connor McGogney, who was named to the role in August.

"Criteo's first inclusion in MSCI indexes represents a significant step in our evolution as a public company, and we believe an early benefit of our redomiciliation process," McGogney said in the release. "We remain focused on disciplined execution and advancing our global commerce intelligence platform strategy to drive long-term shareholder value."

The release frames MSCI as an index provider whose benchmarks are tracked by institutional investors and passive funds, and says the inclusion follows "the completion of the Company's redomiciliation to Luxembourg." It also restates the timetable for the next corporate step: a transfer of Criteo's legal domicile from Luxembourg to the US, "expected to be completed on January 1, 2027, subject to shareholder approval and other customary conditions."

MSCI's side of the story was published late on November 11. According to MSCI, its November 2026 review adds 13 securities to and removes 100 from the MSCI ACWI Index, adds 113 and removes 272 from the broader MSCI ACWI IMI, and brings 171 additions and 243 deletions to the MSCI ACWI Small Cap Index, with all changes implemented as of the close of November 30. MSCI's global summary names only the largest additions, such as Moderna and Aritzia for the MSCI World Index, and does not mention Criteo. Changes to MSCI's US equity indexes are published separately, according to MSCI, so the global summary alone cannot confirm which of those indexes Criteo will join.

Size offers a rough guide. Criteo shares closed at $14.88 on October 23, 2026. With about 49.1 million shares outstanding, that implies a market value of roughly $730 million, on PPC Land's arithmetic. A company of that value is far smaller than the typical member of MSCI's large and mid cap standard indexes, but Criteo has not confirmed its segment and MSCI's published summary does not settle the question.

Why domicile kept coming up

Index access has been the stated reason for Criteo's corporate migration since the plan was first disclosed. On October 29, 2025, Criteo announced it would leave France as a first step toward becoming a US company, noting that French law provides no framework for a direct merger into a US corporation. According to Criteo's announcement that day, a direct listing of ordinary shares would replace its American Depositary Share structure, enabling potential inclusion in US stock indices.

Shareholders backed the first leg without much resistance. On February 27, 2026, the conversion to a Luxembourg company passed with 50,511,371 votes in favour and 114,993 against. The conversion took effect on July 29, 2026, when Criteo terminated its ADS programme, exchanged each depositary share for one ordinary share and began trading ordinary shares directly on Nasdaq under the unchanged ticker CRTO. Criteo said at the time that the step positioned it for inclusion in US indices, subject to meeting other eligibility criteria.

The definitive proxy statement filed on November 5 pushed the argument further. The filing argued that certain key US indices use a US domicile as one of their inclusion criteria, cited Bloomberg data showing passive strategies now account for more than half of US equity assets, against less than 30% when Criteo listed in 2013, and warned that index exclusion could limit access to a large and growing pool of capital. The filing did not name the indices it had in mind.

Today's announcement complicates that framing in one respect. MSCI is admitting Criteo while it remains a Luxembourg company, before the US merger has been approved. The release attributes the inclusion to the Luxembourg step that is already complete, and McGogney calls it "an early benefit" of the process. What it does not explain is which criterion changed in MSCI's assessment between earlier reviews and this one, whether the end of the ADS structure, the new domicile itself, or something else. Nor does it say whether Criteo expects further index additions, from other providers, to depend on the Delaware merger.

The December 29 vote

The second leg needs a much higher bar. Criteo will ask shareholders on December 29, 2026 to approve a cross-border merger into Criteo Holdings, Inc., a Delaware corporation, which requires at least two-thirds of the votes cast. If it passes, the merger takes effect at 12:00:01 a.m. New York time on January 1, 2027, and the shares move from Nasdaq to the New York Stock Exchange on the next trading day, according to the proxy statement. Today's release lists failure to obtain that vote, failure to list on the NYSE and the delay or abandonment of the merger among its risk factors.

Does the MSCI news change the arithmetic of that vote? Not directly. The record date for the December 29 meeting was set at October 22, 2026. Shares that index funds buy around the November 30 close will therefore be acquired more than five weeks after the record date, so the vote rests with holders as of October 22, not with any new passive owners, on PPC Land's reading of the published timetable.

The business behind the ticker

Index inclusion does not change Criteo's operating numbers, and those numbers have been weak through 2026. On November 4, Criteo reported that net income dropped 85% to $6 million in the third quarter, as revenue fell 11% to $416 million from $470 million. Contribution ex-TAC, the gross profit measure Criteo uses to steer the business, declined 17% to $240 million, or 15% at constant currency. McGogney told analysts that the tax provision included "a $6 million one-time tax impact associated with our redomiciliation", so the corporate move already carries a measurable cost in the income statement.

The outlook has been cut twice this year. Criteo started 2026 forecasting Contribution ex-TAC between flat and 2% growth at constant currency, lowered that to a low-single-digit decline in May and then, on August 5, to a decline of 10% to 12%. It kept that range on November 4, alongside an adjusted EBITDA margin of about 30%. Fourth-quarter Contribution ex-TAC is guided at $292 million to $298 million. The retail media business has absorbed the loss of spending from two large clients, an effect McGogney put at about $75 million for the full year.

The share price tells the same story from the market's side. Criteo stock closed at $15.20 on September 30, 2026, 60% below its January 2025 close of $37.99. The company has also been buying back its own stock, $65 million in the first nine months of 2026, with $156 million left under the authorisation at the end of September, and shares outstanding fell 6.6% over the year to 49.1 million.

Ownership is already concentrated. Based on Schedule 13G filings cited in the proxy, Neuberger Berman Group held 16.21% of the shares, DNB Asset Management 11.18%, Morgan Stanley 10.00%, Senvest Management 9.37% and Barclays 6.19%, a combined 52.95% on PPC Land's calculation, though some of those filings date from 2025.

The approach nobody has addressed

There is also a question the release leaves untouched. On July 6, 2026, Bloomberg and Reuters reported that Vista Equity Partners and Quinti Capital had approached Criteo with an offer at a premium of more than 50% to its recent trading price. The shares closed 21.4% higher at $23.17 that day. Criteo has not publicly confirmed or denied the approach, the November 5 proxy does not mention it, and today's announcement does not either.

That matters for how the MSCI news reads. An index listing broadens the pool of long-term public shareholders; a take-private would remove the shares from public indexes altogether. Criteo has presented both its Luxembourg and Delaware steps as moves to strengthen its standing as a listed company, and the MSCI inclusion fits that narrative. The original October 2025 rationale also included making a direct merger with a US corporation legally possible. Both readings remain open.

Ad tech and the index ladder

Criteo is not the first advertising company to treat index membership as a milestone. The Trade Desk joined the S&P 500 effective July 18, 2025, replacing ANSYS after Synopsys completed its acquisition; its shares rose nearly 9% to $80.40 after the announcement. In June 2026, Taboola joined the Russell 3000 and Russell 2000, effective at the close of US markets on June 26. Two months later, Reddit gained an S&P 500 seat effective before the open on August 18, 2026, in an off-cycle addition.

Those examples involve different index families with different rules. S&P Dow Jones Indices, FTSE Russell and MSCI each apply their own tests on domicile, listing, size, liquidity and free float, and each runs its own review calendar. A seat in one does not imply a seat in another, which is why Criteo's case for a US domicile survives today's news.

For the marketing community, the significance is indirect but real. Criteo sits between retailers, brands, agencies and publishers in commerce media, and its ability to fund products such as its connected TV expansion and its ChatGPT advertising work depends in part on how investors value it. Criteo's own case is that a broader shareholder base supports long-term value. A new index seat does not reverse a Contribution ex-TAC decline of 17% in a single quarter, and the forward-looking statements in today's release acknowledge as much: among the listed risks is "the possibility that our inclusion in the MSCI Global Investable Market Indexes does not result in the anticipated benefits, including increased investor demand, or a broader shareholder base or is delayed or reversed."

What the release does not say

Several gaps remain. The announcement does not name the MSCI indexes involved, the size segment, the expected weight or the number of shares tracking funds will need to acquire. It does not say how MSCI classified a Luxembourg-domiciled company with a sole Nasdaq listing, nor which eligibility test Criteo previously failed. It does not quantify the costs of the redomiciliation beyond the $6 million tax charge disclosed on the earnings call, and it does not address the reported Vista and Quinti approach.

The next dates are fixed. MSCI's changes take effect at the close on November 30. Shareholders vote on December 29. If two-thirds approve, Criteo becomes a Delaware company on January 1, 2027, and moves to the NYSE the next trading day. Whether other index providers follow MSCI is the question the company's US migration was built to answer.

Timeline

Summary

Who: Criteo (Nasdaq: CRTO), the advertising technology company that calls itself a global commerce intelligence platform; chief financial officer Connor McGogney; index provider MSCI; and Criteo's shareholders, who vote on a US domicile on December 29.

What: Criteo will be included in the MSCI Global Investable Market Indexes for the first time, in what it says are several global and US indexes it has not named. The inclusion follows its July 2026 move from France to Luxembourg and comes before a planned merger into a Delaware company.

When: Criteo announced the inclusion today, November 12, 2026, a day after MSCI published its November 2026 Index Review. The change takes effect as of the close of November 30, 2026. The US domicile transfer is expected on January 1, 2027, subject to the December 29 vote.

Where: The announcement was issued from New York. Criteo is currently domiciled in Luxembourg, with its shares listed on Nasdaq; it plans to become a Delaware corporation listed on the New York Stock Exchange.

Why: Criteo says index inclusion should raise its visibility with institutional investors and broaden its shareholder base, the stated goal of its two-step corporate migration. For marketers, retailers and agencies that work with Criteo, the inclusion does not change its products, but it lands while the company reports falling revenue and profit, an unaddressed takeover report and a shareholder vote that will decide whether it becomes a US company.