The Effect of Option Listing on Return Momentum and Reversal
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Momentum studies examine short-term return continuations and long-term return reversals in various capital market environments. In this paper, we examine the informational impact of option listing on momentum strategies. We find that within a 12-month period, the profitability of momentum strategies is higher for stocks with options than those without options. Moreover, during a three-year window, stocks without listed options exhibit significant reversals in momentum return, while those that have options show no reliable evidence of reversal. When we examine the effect of risk, we document that the reversal pattern appears strongest for a subsample of stocks characterized by both small capitalization and high volatility. Our findings support the information-based proposition that option availability improves market efficiency and hence reduces investors’ overreaction during the short-term momentum cycle. As a result, long-run return reversal declines. Our paper also provides new evidence supporting behavioral models related to the momentum phenomenon.
Abstract
Momentum studies examine short-term return continuations and long-term return reversals in various capital market environments. In this paper, we examine the informational impact of option listing on momentum strategies. We find that within a 12-month period, the profitability of momentum strategies is higher for stocks with options than those without options. Moreover, during a three-year window, stocks without listed options exhibit significant reversals in momentum return, while those that have options show no reliable evidence of reversal. When we examine the effect of risk, we document that the reversal pattern appears strongest for a subsample of stocks characterized by both small capitalization and high volatility. Our findings support the information-based proposition that option availability improves market efficiency and hence reduces investors’ overreaction during the short-term momentum cycle. As a result, long-run return reversal declines. Our paper also provides new evidence supporting behavioral models related to the momentum phenomenon.
참고문헌 (30)
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