Stocks swung to losses after flirting briefly with gains late in today's session to close the worst week since mid-June. The news that unemployment grew to 9.8% in September depressed the markets, but analysts said so much disappointing data emerged this week that most traders had already unloaded shares. Also driving the late swing was bargain-hunting after the week's severe losses. The Dow fell 21.61 points to close at 9,487.67. The Nasdaq lost 9.37, closing at 2,048.11, and the S&P 500 fell 4.64 to settle at 1,025.21.