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发表于 2014-5-21 08:16:29
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原帖由 xtrader 于 2012-6-4 23:33 发表 Use high leverage or not depends on the trader. Pairs trading is just relative lower risk, not no risk. To certain extent, pairs trading is a directional trading as well. It is the direction of the c ... the spread from the pairs is typically very low. for two stocks which are highly correlated historically, and then they have a spread for various reasons (market inefficiency whatever), because the spread itself will be small, you have to use a lot of leverage to earn meaningful return when the spread converge to 0; and when you are using leverage, you are building up the volume of the stocks gradually. suppose now, things/macro turn really bad, you are probably not the only one doing pair trading, there are other people probably trying to do exactly the same thing, so there are ppl using correlated strategy to your pair trade model-->sooner or later, 1. there are people who want to unwind the position because they don't want to take the risk to earn the |
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