Alphabet Inc. (GOOG) (GOOGL) spent most of the past two years sitting in the market's penalty box, unloved and overlooked. Now it's the comeback story powering hedge fund returns into the stratosphere. When word broke Friday night that Warren Buffett's Berkshire Hathaway Inc. (BRK-A) (BRK-B) had taken a $4.3 billion stake in Alphabet, the stock popped 3% on Monday. But the real winners? The managers who were already holding Google long before the Oracle of Omaha decided to join the party.

Ackman's Patience Pays Off: Nearly $700 Million in Four Months

Pershing Square Capital held 6.32 million Alphabet shares heading into the third quarter. Back on June 30, Google was trading at $177.39. With Monday's price hitting $285.60, Bill Ackman's position has ballooned by about $108.21 per share—delivering a staggering $684 million in gains in less than five months.

For a guy known for making big, bold, public bets, this might be the quietest winner in his portfolio. And it's one of the most lucrative. Google did all the heavy lifting. Ackman just had to sit there and let it happen.

Asness Rides the AI Wave to $424 Million

AQR Capital's Cliff Asness also caught Google's AI-driven resurgence at the right moment. His firm's 3.92 million Alphabet shares have appreciated by the same $108.21 per share, translating into roughly $424 million in mark-to-market profits since June.

For a quantitative investor who lives in a world of factor spreads and statistical significance, Google turned into a beautifully straightforward trade: buy it, hold it, and watch the fundamentals eventually catch up to reality.

Buffett's Timing? Not Exactly Perfect

Berkshire's 17.85 million new shares, purchased at roughly $209.67 each, might age nicely over time. But Buffett missed the most explosive part of the rally.

Alphabet is now up 50% year-to-date, outperforming every other megacap peer as investors finally wake up to Google's AI readiness—from TPU momentum to Cloud reacceleration to the upcoming Gemini 3 reveal.

Why This Matters

Buffett's endorsement adds legitimacy and a nice headline, but the biggest gains have already been claimed. While the market was fixated on OpenAI drama and corporate chaos, Alphabet quietly assembled the complete AI stack—chips, models, cloud infrastructure, devices—and the early believers are already banking billion-dollar returns.

Sometimes the best trades aren't the loudest ones. Sometimes you just need to be early, be patient, and let everyone else figure it out later.