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Where do Stock Returns Come From? (EP.140)

The Rational Reminder Podcast

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The Effects of Migration Groups on Portfolio Returns

The size premium is explained by the 8 to 12% of small stocks that moved to a big portfolio from one year to the next. Big stocks that become small have huge negative excess returns, but they don't contribute very much to the size premium because of the capitalization of big stocks. The plus transitions, which are improving in type, contribute 3.5% more per year for the excess return of value than they do for growth matching. They both have high access returns, but the contributions from big and small stocks are similar.

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