Jim Simons Stock Tracker

Jim Simons built a hedge fund empire on math that almost never loses. One of his funds just had its worst month in years. Here's what the market missed:

Jim Simons built the fund every other quant firm tried to copy for decades. In 2025, two of those rivals finally beat him at his own game. Here's what the market missed:

Jim Simons' hedge fund is not owned by outside shareholders or a parent company on Wall Street. It is entirely owned by the people who work there, split across two private holding entities. Here's what you need to know:

Jim Simons' old hedge fund just faced real speculation about whether it will shut its public funds to outside investors entirely. The pressure came from a rough stretch that broke a pattern nobody expected to see. Here's why you can't ignore this:

Everyone assumes the world's most secretive quant fund only chases momentum. Its own filings say otherwise. Here's what nobody is talking about:

Renaissance Technologies' public portfolio just grew by nearly 9 billion dollars in a single quarter. The new top holdings list reads like an AI trade cheat sheet. Here's why it matters:

Renaissance Technologies just bought a stock it had zero shares of the quarter before. The same filing revealed a gold miner sitting right next to Apple in the top 5. Here's what you need to know:

Renaissance Technologies just quietly dumped most of its stake in one of the world's biggest tech companies. The cut was worth roughly 700 million dollars. Here's the full story:

Jim Simons' old quant fund just sold into one of the biggest chip rallies of the year. Renaissance Technologies dumped 90 percent of a stock trading at its all-time high. Here's what happened:

Jim Simons has been dead for two years, and his old hedge fund just quietly disclosed it now manages 96.4 billion dollars. That number comes straight from a regulatory filing most investors never even look at. Here's what nobody is talking about:

Jim Simons spent his career using math to beat the stock market, not chase crypto. His fund just made its second straight quarter of buying into Bitcoin. Here's what the market missed:

Jim Simons' old fund cut its biggest stock position by 61 percent in 2025. That stock still went on to return 135 percent for the year. Here's why you can't ignore this:

Jim Simons' old fund sold every share of Apple it owned in 2025. Three months later, it owned more than 3 million shares again. Here's what the market missed:

Renaissance Technologies just made a single stock its third largest holding in one quarter, and it is not an AI chip company. Jim Simons' old fund had never even owned this stock before this year. Here's the trade:

Jim Simons built the greatest quant fund in history before he passed away. His fund just made one of its biggest position swings in years. Here's what happened:

Jim Simons' old hedge fund just filed its newest trades, and Nvidia was not on the buy list. While retail investors kept piling in, this fund was doing the opposite. Here's why it matters:

Jim Simons died two years ago. His hedge fund just made its biggest stock purchase since his passing, and it was not Nvidia. Here's what nobody is talking about:

Jim Simons' hedge fund just tripled its Nvidia position. And you know what? It is still not even a top 10 holding for the fund. Here's the trade:

Jim Simons built the greatest hedge fund track record in history, and years after his death, his fund's biggest bet is not even in AI. Renaissance Technologies' largest holding right now is a company pioneering pig organ transplants, not Nvidia or Palantir. Here's what nobody is talking about: