Via Goldman Sachs: Last week was the largest active hedge fund deleveraging event since February 2009, with long positions sold and shorts covered in every sector.
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Replying to @tracyalloway
@tracyalloway How does that square with such a (relatively) small decline in SPX? Many weeks (40+) with larger % declines in last 12 years. What is the support countering ALL that deleveraging.3 replies 0 retweets 5 likes -
Replying to @lakepktx @tracyalloway
Deleveraging does not move the market per se because the same amount of stock is bought (to cover shorts) as sold (to reduce longs). If it leads to denetting (ie selling more longs than shorts) that would put pressure on the market.
1 reply 0 retweets 6 likes -
So HF didn’t perform any “denetting”? Just deleveraging ?
@hkuppy@TeminatorTrader1 reply 0 retweets 0 likes -
They reduced net exposure as well (at according to data I’ve seen) but the deleveraging was a much bigger effect, and only visible through the lens of equity long/short fund returns, or quant factors like “short interest” that I’ve posted about a bit already.
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Replying to @macrocephalopod @ddr8883 and
macrocephalopod Retweeted macrocephalopod
Short interest factor (short most shorted stocks, long least shorted stocks)https://twitter.com/macrocephalopod/status/1354767156253229059 …
macrocephalopod added,
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Replying to @macrocephalopod @lakepktx and
Great stuff. Can you please point to some doc, formula, algorithm of the short interest Factor ?
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Short interest defined as shares loaned out divided by free float (demeaned within sectors). Exposure given by ranking on this metric from -1 (most short) to +1 (least short) then factor returns estimated in a standard equity factor model along with market and sector
1 reply 0 retweets 2 likes
exposures (eg see Grinold and Kahn “Active Portfolio Management” for how this is done).
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