Hedge Fund - Renaissance Technologies

Jim Simons Bio, Returns, AUM, Net Worth

Jim Simons’ Medallion Fund is the best hedge fund that ams-2010 has come across. The fund’s returns are so spectacular that Jim Simons became one of the richest people on the planet. Medallion Fund employs high frequency trading and exploits inefficiencies in the stock market. One strategy they use takes advantage of the inefficiencies in the execution of large transactions. One of their algorithms determines whether a very large order is executed and front runs it. As a result Medallion experiences high transaction costs and high expenses. That’s why they charge a 5% fixed fee. On top of that they charge performance fee. That fee had been 20%, but after 2000 it increased initially to 36% and then to 44%.



Jim Simons’ Medallion Fund is the best hedge fund that ams-2010 has come across. The fund’s returns are so spectacular that Jim Simons became one of the richest people on the planet. Medallion Fund employs high frequency trading and exploits inefficiencies in the stock market. One strategy they use takes advantage of the inefficiencies in the execution of large transactions. One of their algorithms determines whether a very large order is executed and front runs it. As a result Medallion experiences high transaction costs and high expenses. That’s why they charge a 5% fixed fee. On top of that they charge performance fee. That fee had been 20%, but after 2000 it increased initially to 36% and then to 44%.

Currently the fund’s investors are current and past employees and their families. So, the fund’s 44% performance fee is a little bit irrelevant. Jim Simons owns between 25-50 percent of Renaissance Technologies (RenTec), and he is also the largest investor in the Medallion Fund. So when Medallion reports a 50% return in a given year, the return is really close to 100% for most of the fund’s investors.

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Jim Simons
Fund Profile
Filing Period:
Fund Name:Renaissance Technologies
ManagerJim Simons
Portfolio Value$84,977,702,000
Change This QTR+1.08%
Fund Holdings Sector Distribution
Top 13F Holdings
Filing Period:
Last update:
No. Security Ticker Shares Value (x$1000) Activity % Port
1.HUM3,660,100$891,710+35%1.04%
2.GILD10,230,899$828,907-2%0.97%
3.AMGN3,917,700$730,455+16%0.85%
4.NVDA4,010,100$716,886-16%0.84%
5.NTES2,683,050$707,815-2%0.83%
News, Interviews and Investor Letters

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