...still hearing about systematic long straddles as vol trade with E[R]>0...
But vol is actually a drag and, if E[R]>0, it's just direction
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long story short, you have to scalp enough gamma to pay for the options. Logica is also attempting to capture drift.
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“scalping gamma” = making money on your delta hedges. fine, but you need to make enough to compensate for theta, which you won’t on average unless you are very good at predicting realized vol. “capture drift” = adding a beta overlay, again fine but that comes with downside!
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