In the second quarter, billionaire Steven Cohen exited its entire position in SoundHound AI, a company once touted as one of the purest ways to invest in voice-driven artificial intelligence.
The move came after SoundHound’s stock had surged more than 3x in a year as investors piled into anything labeled “AI.”
So why would one of Wall Street’s most sophisticated investors bail out just as the hype peaked?
In the second quarter of 2025, Ken Griffin’s Citadel Advisors sharply reduced its holding in Palantir Technologies, selling nearly half of its position.
The move raised about $75 million in cash and followed a familiar pattern for Griffin, who has been building and trimming his Palantir stake in waves since 2021.
This latest sale has investors wondering: why would one of Wall Street’s most sophisticated fund managers cut exposure to a stock riding the artificial intelligence boom?
In the second quarter, Warren Buffett quietly added nearly 1.4 million shares of Constellation Brands, bringing Berkshire Hathaway’s total stake to roughly just shy of $2 billion.
That’s a bold move at a time when the entire alcohol industry is facing a slump in consumption. But if history is any guide, Buffett tends to buy when sentiment is sour and value hides in plain sight.
SoFi Technologies has evolved far beyond its origins as a student loan refinancer. Today, it’s a full-fledged digital financial platform offering everything from brokerage accounts to mortgages, all through a single app.
That simplicity and accessibility have made SoFi a go-to brand for Millennials and Gen Z, who increasingly prefer managing their finances entirely online.
Berkshire Hathaway quietly raised its stake in Heico by over 11% last quarter, bringing its total position to about 1.3 million shares. That move turned heads because Heico isn’t a typical Buffett pick. It’s not cheap by traditional value metrics, and it doesn’t sell iconic brands like Coca-Cola or Geico.
So why did Berkshire,
Uber controls as much as 75% of the U.S. ridesharing market, while Lyft holds roughly 25%.
This dominance creates a powerful network effect, more riders attract more drivers, which in turn attracts even more riders. That feedback loop makes Uber’s position extremely difficult to challenge.
Ackman prefers companies with natural barriers to entry,
Markets were rattled earlier this week after a fresh round of tariff threats reignited tensions between the U.S. and China. For a moment, it looked like the trade war narrative of 2018 was making a comeback. But by midweek, cooler heads prevailed, and stocks came roaring back.
The surprise? Small-cap stocks didn’t just recover,
In the second quarter, Bill Ackman’s Pershing Square Capital added another 900,000+ shares of Alphabet Class A (NASDAQ: GOOGL).
Combined with its Class C (NASDAQ: GOOG) shares, Alphabet now makes up about 21% of Pershing Square’s portfolio, one of the fund’s biggest bets.
So what makes Alphabet such a perfect Ackman stock,
» Read more about: Why This Billionaire Is Buying Google In Spades »
Over the past year, CoreWeave (NASDAQ: CRWV) and Nebius (NASDAQ: NBIS) have become two of the hottest names in AI infrastructure.
Both run massive GPU cloud platforms that power artificial intelligence training and inference workloads, and both stocks have exploded. CoreWeave is up more than 230%, while Nebius has surged over 500%.
When billionaire investor Bill Ackman adds to a position quarter after quarter, investors pay attention.In Q2, his fund Pershing Square bought another 156,000 shares of Brookfield Corporation (NYSE: BN), extending a buying streak that’s now five quarters long.
Brookfield isn’t your typical conglomerate. It’s a $70 billion global powerhouse with interests spanning renewable energy,
