Changing preferences as a source of stock return variation

Julian Winkler

MPRA Paper from University Library of Munich, Germany

Abstract: What can granular data on investors' asset demand tell us about stock return variation? Motivated by the recent literature on demand-based asset pricing, I model the growth rate of portfolio holdings based on evolving asset fundamentals by including demand for asset-specific characteristics in a portfolio optimisation function. Alongside changes in asset characteristics, investors re-allocate wealth according to their evolving demand elasticities. Using the model, I decompose the growth rate of mutual fund holdings by the effect of i) changing stock characteristics, ii) new preferences, and iii) latent demand. I aggregate these components to reconstruct the historical impact of mutual fund investments on stock returns, and find that changing preferences explain at least as much variation in stock prices as changes in fundamentals. This demonstrates the importance of studying heterogeneity in investor preferences, and their evolution, in furthering our understanding of stock market phenomena.

Keywords: Asset demand; Investor preferences; Institutional investors (search for similar items in EconPapers)
JEL-codes: G02 G11 G23 (search for similar items in EconPapers)
Date: 2024
New Economics Papers: this item is included in nep-fmk
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