It was the computer’s fault!: Sometimes computers do really well at calling the investment shots, but sometimes they suck. Like in the recently volatile markets where some quant funds have run into a really rough patch. The Wall Street Journal talks about which funds have been taking hits. And the news is helping to roil the markets this morning:
Global Alpha, Goldman’s widely known
internal hedge fund, is now down about 16% for the year after a choppy July,
when its performance fell about 8%, according to people briefed on the matter.
The fund, based in New York, manages about $9 billion.
The fund’s traders in recent days have been
selling certain risky positions, according to these people. Early this week,
those moves sparked widespread rumors on Wall Street that the entire fund might
be shut down. A Goldman spokesman has said the rumors are "categorically
untrue."
Campbell & Co., an $11 billion hedge
fund that trades in the futures market as well as in stocks and bonds and is
completely driven by such computer programs, was down 10% to 12% by the end of
July.
Quant funds — "quant" stands for
quantitative — generally operate by building computer models of market behavior
and then allowing the computer programs to dictate trading. A recurring
characteristic of the recent trouble in financial markets is that many lenders,
funds and brokerages were following statistical models that grossly
underestimated how risky the market environment had become.
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Tags: Goldman Sachs, Hedge funds, Jim Simons, Renaissance Technologies