We examine market responses to changes in the Nasdaq 100 index membership and find asymmetric stock price and investor awareness reactions. Stocks added to the Nasdaq 100 index for the first time experience permanent price gains and significant increases in investor awareness, whereas repeated...

Purpose − The purpose of this study is to examine changes in stock returns, liquidity, institutional ownership, analyst following, and investor awareness for companies added to and deleted from the Dow Jones Industrial Average (DJIA) index. Previous studies report conflicting evidence...