Investment momentum: A two-dimensional behavioural strategy

Fangming Xu, Huainan Zhao, Liyi Zheng*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

Abstract

We propose an investment-momentum strategy of buying past winners with low investment and selling past losers with high investment, which simultaneously exploits two dimensions of market inefficiencies. The new strategy generates twice the monthly returns earned by either the price momentum or investment strategy (1.44% vs 0.75% or 0.61%). Despite the diminishing anomalies in recent decades, the investment-momentum stays persistent. The mispricing-based strategy performs better in periods of high investor sentiment or for stocks with high limits-to-arbitrage, which is consistent with our expectations. Overall, we show that one can simultaneously use multiple dimensions of market inefficiency to attain superior performance.
Original languageEnglish
Number of pages17
JournalInternational Journal of Finance and Economics
Early online date12 Aug 2020
DOIs
Publication statusE-pub ahead of print - 12 Aug 2020

Structured keywords

  • AF Financial Markets

Keywords

  • Investment momentum
  • price momentum
  • corporate investment
  • mispricing
  • behavioural finance

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