“…Karpoff, Lee, and Martin (2008a) find that the initial disclosure of an SEC or Department of Justice litigation or administrative action generates an excess return of -9.6 percent. Financial fraud also has long-lasting valuation effects: for example, Leng, Feroz, Cao, and Davalos (2011) document significantly negative abnormal returns for up to three years following AAERs, specifically, mean one-year, two-year, and three-year buy and hold excess returns after the AAER month of -13 percent, -24 percent and -25 percent, respectively. Additionally, some studies examine the market consequences of restatement announcements: for example, Palmrose, Richardson, and Scholz (2004) report a mean excess return of -9.2 percent over two days around the announcement.…”