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Vasilis's avatar

Looks great, thanks for sharing this research! Quick question though - to isolate the factor exposure, wouldn't it make more sense to formulate factor-weighted long/short portfolios (possibly clipping weights to avoid "over dominance'), instead of simple equal weighted?

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Mark Aron Szulyovszky's avatar

Good question, thanks! Yes, this is in reality what we're doing, I thought I'd simplify it a bit to conform to the preconceptions that I thought people had.

In reality, all of our single-factor portfolios that you can track on the site are constructed by keeping all bins (and positions scaled according to the quantiles), not just the top/bottom.

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hashmash's avatar

You mentioned these are market neutral. I don't see how you are neutralizing them.

Just because you do quantiles or rank-weighted doesnt mean they are market neutral.

E.g. for a basic momentum factor, trading quantiles/rank-weight would make it momentum neutral, but not necesarily market neutral, since momentum and market returns can (and good chance are) correlated.

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hashmash's avatar

You mentioned these are market neutral. I don't see how you are neutralizing them.

Just because you do quantiles or rank-weighted doesnt mean they are market neutral.

E.g. for a basic momentum factor, trading quantiles/rank-weight would make it momentum neutral, but not necesarily market neutral, since momentum and market returns can (and good chance are) correlated.

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