An insider bought a sizeable chunk of The Trade Desk stock.
Reports emerged of a potential groundbreaking partnership.
This double dose of good news sent The Trade Desk stock soaring.
Shares of The Trade Desk (NASDAQ: TTD) stock roared out of the gate on Thursday, spiking as much as 30.7%. As of 10:56 a.m. ET, the stock was still up 18.4%.
The catalyst that sent the adtech specialist higher was a combination of insider buying and a potential groundbreaking partnership.
Will AI create the world's first trillionaire? Our team just released a report on the one little-known company, called an "Indispensable Monopoly" providing the critical technology Nvidia and Intel both need. Continue »
Image source: The Motley Fool.
The first bit of good news was a report that The Trade Desk had held talks with OpenAI regarding a strategic partnership. The artificial intelligence (AI) start-up is looking to expand into advertising, relying on partnerships to place its ads. The Trade Desk was named as one of its potential partners.
The second bit of good news was a record-breaking stock purchase by CEO Jeff Green. The chief executive bought 6 million shares of The Trade Desk stock at prices ranging between $23.49 and $25.08, according to a regulatory filing. That puts the value of the new stake at more than $151 million. This adds to Green's already sizable holdings. As recently as last year, he owned roughly 47 million shares, or roughly 48% of the company, putting his total stake at roughly $1.3 billion.
There's an old Wall Street adage that suggests that while there are plenty of reasons to sell a stock, there's only one reason to buy -- the belief that the stock will rise from here.
The Trade Desk stock has been pummeled recently as investors grew concerned about decelerating growth and the possibility that AI is having a negative impact on its adtech business. These fears have weighed on the stock, sending shares down 63% over the past year and 72% from their peak in July.
News of Green's purchase represented a big vote of confidence, as did the report that The Trade Desk could partner with OpenAI -- and confidence is something investors have been sorely lacking of late. The company's revenue growth has decelerated in each of the past five quarters, and shareholders had begun to wonder if The Trade Desk's best days were behind it.
The stock was recently trading for roughly 26 times earnings, its lowest valuation ever. Green obviously thought The Trade Desk stock was a bargain, and given his keen insight into the company, he's probably not wrong.
Before you buy stock in The Trade Desk, consider this:
The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and The Trade Desk wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.
Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $532,066!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,122,072!*
Now, it’s worth noting Stock Advisor’s total average return is 960% — a market-crushing outperformance compared to 193% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors.
See the 10 stocks »
*Stock Advisor returns as of March 5, 2026.
Danny Vena, CPA has positions in The Trade Desk. The Motley Fool has positions in and recommends The Trade Desk. The Motley Fool has a disclosure policy.