By Deborah Levine
SAN FRANCISCO (MarketWatch) -- The dollar and Treasury prices extended gains slightly after a report showed U.S. personal spending rose 0.8% in September, more than economists expected. The dollar index DXY +0.27% , which measures the greenback against a basket of six currencies, traded at 80.252 versus 80.214 before the report and 80.046 in North American trading late Friday. The euro EURUSD -0.38% fell to $1.2893 versus 1.2937 Friday. Yields on 10-year notes 10_YEAR -0.86% , which move inversely to prices, fell 3 basis points to 1.72%. U.S. trading is expected to be slow because of Hurricane Sandy shutting exchanges and offices along the Eastern seaboard. Bond trading is expected to end at noon Eastern time.