Renaissance Technologies, the quant hedge fund founded by mathematician Jim Simons, has filed its Q2 2026 13F with the SEC. The filing offers a fresh look at how one of the most closely watched funds in the world is positioning its $72.6 billion portfolio, spread across 3,140 individual positions.
The headline takeaway is a clear rotation. Renaissance added heavily to mega-cap AI names and cybersecurity, while trimming exposure to memory chips, industrials, and data center infrastructure plays. Total buying and selling activity across the top moves alone came to roughly $6.5 billion.
Top Buys: Doubling Down on AI
Renaissance's largest purchase of the quarter was Meta ($META), where the fund added approximately $995 million in stock, its biggest single buy for the period.
Nvidia ($NVDA) came in close behind, with Renaissance adding roughly $978 million, extending its bet on the chipmaker at the center of the AI infrastructure buildout.
The fund also picked up about $696 million in Intel ($INTC), a notable move given the stock's recent volatility, suggesting a bet on the chipmaker's turnaround story.
Alphabet ($GOOG) saw an addition of around $672 million, reflecting how Google's AI push is increasingly winning over institutional capital.
CrowdStrike ($CRWD) rounded out the cybersecurity angle, with Renaissance buying about $572 million more in the stock, bringing the sector back into its top buys this quarter.
Amazon ($AMZN) closed out the list of major buys, with roughly $546 million added, completing what looks like a broad, coordinated push into mega-cap AI exposure.
Top Sells: Cutting Memory Chips and Industrials
On the other side of the ledger, Renaissance's biggest cut was SanDisk ($SNDK), where the fund sold about $497 million worth of shares, its largest sale of the quarter.
Micron ($MU) was also trimmed, down roughly $487 million, continuing the theme of reduced exposure to memory chip makers.
Apple ($AAPL) saw a sale of about $322 million, a relatively modest cut compared to its buy-side counterparts but notable given Apple's usual weight in institutional portfolios.
Linde ($LIN) was cut by around $310 million, marking a pullback from industrial gas exposure.
Vertiv ($VRT) dropped by about $232 million, signaling a retreat from data center infrastructure plays even as AI spending remains elevated elsewhere in the portfolio.
Nu Holdings ($NU) rounded out the sells, trimmed by roughly $196 million, showing that even a fintech favorite wasn't spared from the reshuffling.
What This Signals
Taken together, the filing paints a picture of a fund concentrating its AI conviction in the biggest, most established names (Meta, Nvidia, Alphabet, Amazon) plus a security layer (CrowdStrike) and a turnaround bet (Intel), while stepping back from the more cyclical, hardware-adjacent parts of the AI trade, like memory chips and data center infrastructure.
It's a reminder that even within a single theme like AI, hedge funds are making increasingly specific bets about where the durable value sits, and where the risk of a pullback is higher.
Renaissance just showed its whole hand for the quarter. Thousands of investors now track filings like this automatically through platforms like Autopilot, turning a quarterly disclosure into a real-time signal.
Source: Renaissance Technologies Q2 2026 13F filing