4min chapter

The Rational Reminder Podcast cover image

Evaluating Systematic Equity Strategies (EP.152)

The Rational Reminder Podcast

CHAPTER

X Post Optimum Portfolio Selection With Transaction Costs

If you take a non market cap weighted strategy, it's going to naturally trade more than a market cap weighted index fund. Robert Novi Marks found that once you account for transaction costs, the Fama French five factor model has a significantly higher squared sharp ratio than the other alternatives. He explains that if some combination of an asset pricing models factors are X post mean variance efficient, then no other asset can be used to improve performance.

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