Equity and Quant Hedge Funds Hit Hardest by Stock Market Rout
Comment of the Day

October 31 2018

Commentary by Eoin Treacy

Equity and Quant Hedge Funds Hit Hardest by Stock Market Rout

This article by Saijel Kishan and Suzy Waite for Bloomberg may be of interest to subscribers. Here is a section:

The selloff underscores the perils that funds face when they pile into the same stocks. Equity funds suffered after the top 10 stocks they’re most “crowded” in underperformed the S&P 500 Index by almost 3 percent on Oct. 29, the worst day since 2010, Morgan Stanley said. In addition, the top 10 stocks that funds bet against outperformed the index by more than 1 percent.

Funds that use computer-driven models to follow big market trends were whiplashed as price volatility spiked. Among the casualties: Leda Braga’s BlueTrend hedge fund, GAM Holding AG’s Cantab unit and Man Group Plc’s AHL unit. Other quant models that lost money include Renaissance Technologies’ U.S. equity fund.

Eoin Treacy's view

Never mistake a bull market for brains is one of the most important pieces of advice anyone can receive when momentum strategies in all their forms are the most fashionable investment vehicles. If all algorithms are taught to do is remember the trend is your friend then automatic sell signals go in at the first failure of the price at the moving average. Meanwhile indices are generally market cap weighted so that ETF passive investing is essentially a momentum strategy biased towards mega-caps. Nevertheless, a crisis has to be seen to be getting worse in order to continue have a deleterious effect on markets and there is increasing evidence of volatility abating. 

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