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Is It a Good Idea to Run a Short Book?
One of the things I've heard from a number of value investors who have tried to run short books is that it is prohibitively expensive. We don't short the most heavily shorted stocks and by the same token, we don't buy long the very most heavilyShorted stocks because they do eventually fall apart. The other way that we do it is that the short book is much smaller than the long book. So a long might be about 4% of the portfolio and a short would be no more than 1%.