The Renaissance Technologies portfolio
A fund of mathematicians and physicists. Here no position means what it appears to mean.
SourceSEC Form 13F filings (US)Holdings as of 30 Jun 2026
The +62.9% above is what these weights would have done over 12 months. It is not Renaissance Technologies's return.
Renaissance runs statistical models across hundreds of simultaneous positions. These are the largest ones in its latest filing.
Renaissance Technologies, founded by the mathematician Jim Simons, does not hire financial analysts. It hires physicists, statisticians and pattern-recognition specialists. Its models look for small regularities in prices and exploit them thousands of times. There is no view about a company behind it: there is statistics.
That changes how to read this list entirely. If the fund shows a large position in a company, it is almost never because it believes in that business. It is because a model found a signal, probably a short-lived one, and probably one it has already closed. The portfolio can turn over completely between one filing and the next.
Its most famous fund, Medallion, is closed to outside investors and manages only the firm's own money. What gets disclosed publicly is the other funds. The lesson for a private investor is not in the list of positions. It is in understanding that some strategies do not work by picking good companies, and cannot be copied without the same technology behind them.
Positions come from the 13F form Renaissance files with the SEC each quarter. The fund turns positions over frequently, so this document ages faster than a long-term investor's.
Regulated platforms available in your country.
Platform of the Grupo Bursátil Mexicano that facilitates investing from Mexico in stocks, funds, and ETFs through a digital, educational, and intuitive interface. Design your portfolio and grow your wealth step by step.
Latin American fintech that democratizes investing through mutual funds, stocks, and ETFs. Start investing with no commissions and from USD 1.
Established in Miami for the Latin American audience, Folionet provides you access to your own investment account in the U.S., wherever you are. Choose between a personal account or one with advisory services and start enhancing your capital in international markets.
A platform originating from Peru, Hapi democratizes access to the U.S. Stock Market from Latin America, allowing you to invest in over 12,000 stocks, ETFs, and cryptocurrencies starting from just US$5. Begin building your portfolio today.
The Bridgewater Associates portfolio
The world's largest hedge fund does not pick companies. It picks exposures, and spreads the risk across scenarios.
The ARK Invest portfolio
Cathie Wood's firm bets on technologies that do not make money yet, and makes no secret of it.
The Pershing Square portfolio
Bill Ackman concentrates his fund in very few companies, then argues with their management.