Industry long-term return reversal

Given that extreme industry returns may herald long-term structural changes in the industries involved that may eventually lead to reversals in industry fortunes, we investigate the evidence for long-term return reversal in industry returns. Our study employs both pure contrarian strategies and late-stage contrarian strategies, and includes extra-long strategy formation periods (up to 132 months) to allow sufficient time for structural changes to begin. We find strong evidence of reversals in the long-term returns of industries. These reversals continue for many years (with valuation effects observed up to 10 years after commencement) and are difficult to reconcile with overreaction. (C) 2015 Elsevier B.V. All rights reserved.