Today's AT&T split caused the company's stock price to soar 6 1/4 to end the day at 63 7/8. After two down days, the Dow Jones industrial average rose 25.65 to close at 4,792.69. The New York Stock Exchange composite index was up 1.22 to close at 314.33. Advancers led decliners 1,213 to 1,048. The Nasdaq composite was also up today 4.38 to 1,064.70. The Standard & Poor's 500 stocks rose 2.57 to 586.77. In London, gold closed at $384.75, down $0.25.