Dow Jones industrial average closed at 3,773.45, up 20.31 . . . NYSE's composite index rose 0.50 to 253.59 . . . NASDAQ Stock Market composite index up 4.56 to 733.44 . . . American Stock Exchange rose 0.66 to 441.84 . . . Gold rose 50 cents to $383.60 on the Commodity Exchange in New York . . . The 30-year Treasury bond closed with a yield of 7.31 percent, up from 7.27 on Thursday.