The Dow Jones industrial average fell 9.24 to finish at 5,687.87. Declining issues outnumbered advancers by a margin of almost 9-to-8 on the New York Stock Exchange on a light volume of 334.42 million shares as of 4 p.m. Westinghouse finished up 7/8 to 195/8 after announcing it may split the into separate industrial and broadcasting concerns. The NYSE's composite index fell 0.44 to 360.17, while the S&P's 500 fell 1.15 to 672.16. The Nasdaq composite index rose 0.28 to 1,230.04. In London, gold finished at $385.65, down $0.95.