1956: The Dow Jones Industrial Average, less than a year-and-a-half after crossing the 400 mark, breaks through 500 for the first time, closing at 500.24.
1986: Daily trading volume on the New York Stock Exchange exceeds 200 million for the first time, as 210 million shares change hands.
1986: Oracle Corp. goes public on NASDAQ at an initial price of $15.00 a share. The stock closes the day at $20.75, setting the stage for another software company, Microsoft Corp., to go public the following day.
1987: The Dow Jones Industrial Average gets a tune-up, as Owens-Illinois Inc. and Inco Ltd. are replaced by Coca-Cola Co. and Boeing Co. Owens-Illinois is deleted because it’s no longer a public company after its recent leveraged buyout, while Inco is purged “to reflect long-run changes in the economy and the market,” says Norman Pearlstine, managing editor of the Wall Street Journal. In other words, Inco’s sluggish performance was making the index look bad.