Ticker Talk

Fiber-optics company Corning Inc. (GLW), whose stock has more than quadrupled since October, will split its shares 3 for 1 on Oct. 3 for shareholders of record Sept. 5. The stock zoomed $14.50 to close at a new high of $290 on the New York Stock Exchange. . . . Charles Schwab Corp. (SCH) today will begin letting customers trade stocks before U.S. markets open in a move to lure overseas investors and people eager to act on breaking news. The world’s largest online broker said it will widen its trading window to include 4:45 a.m. to 6:15 a.m. Pacific time. . . . San Diego-based Titan Corp.’s (TTN) SureBeam Corp. unit, which makes food pasteurization systems using electronic radiation, filed Wednesday for a $110.6-million initial stock sale. Analysts said the deal is sure to test investor appetite for the controversial radiation process, which opponents call unsafe and insufficiently tested. Titan fell $2.50 to $27.81 on the NYSE.