Japan's most powerful known earthquake struck at 2:46p.m. on Friday, March 11, 2011. We study the unusual trading behaviors of individual and foreign investors in Japan during the aftermath of this natural disaster. Individual investors typically show contrarian trading patterns, so the sharp...

The Japanese stock prices, which had been on the uptrend before the occurence of the Great East Japan Earthquake, dramatically plummeted after the disaster. However, it showed some resilience within a few weeks. In recent years, a large share of transactions in Japan's equity markets has been...