Feasible momentum strategies: Evidence from the Swiss stock market |
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Authors: | David M Rey Markus M Schmid |
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Institution: | (1) Department of Finance, University of Basel, Holbeinstrasse 12, 4051 Basel, Switzerland;(2) Swiss Institute of Banking and Finance, University of St. Gallen, 9000 St. Gallen, Switzerland |
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Abstract: | While there is little controversy on the profitability of momentum strategies, their implementation is afflicted with many
difficulties. Most important, chasing momentum can generate high turnover. Though there are already several attempts to make
momentum strategies less expensive with respect to transaction costs, we go a step further in the simplification of momentum
strategies. By restricting our sample to Switzerland’s largest blue-chip stocks and choosing only one winner and one loser
stock, we find average returns to our momentum arbitrage portfolios of up to 44% p.a. depending on the formation and holding
periods. While unconditional risk models are at odds with momentum profits, stock market predictability and time-varying expected
returns explain a large part of the momentum payoffs, including the post-holding period behavior of the winner and loser stocks
(overreaction and subsequent price correction).
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Keywords: | Momentum strategies Large-caps Event study analysis Stock market predictability Under- and overreaction |
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