Hewlett-Packard Co. chief executive Carly Fiorina rings a bell to virtually open the New York Stock Exchange from HP's headquarters in Palo Alto, Calif., Monday, May 6, 2002. HP changed its ticker symbol from HWP to HPQ to reflect its recent $19 billion acquisition of Compaq Computer Corp. Investors in Compaq, which will no longer exist as a separate company, will receive 0.6325 of a Hewlett-Packard share for each Compaq share they own.