Abstract
We propose an investment-momentum strategy of buying past winners with low investment and selling past losers with high investment, which exploits simultaneously 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%) for 1965-2015. Despite of 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 expectation. Overall, we show that, in addition to “fundamentals” enhanced momentum strategies, one can simultaneously condition on multi-dimension of inefficiencies to attain superior performance.
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