NEW YORK (MarketWatch) -- Treasury prices and the U.S. dollar extended gains on Tuesday after an index by S&P/Case-Shiller showed home prices declined 0.2% in December, making a 1.1% drop in the fourth quarter. Yields on 10-year notes (UST10Y 3.80, +0.02, +0.53%) , which move inversely to prices, fell 2 basis points to 3.77%. The dollar index (DXY 80.61, +0.10, +0.13%) , which measures the U.S. unit against a trade-weighted basket of six major currencies, traded at 80.704, up from 80.638 before the report and 80.513 in late North American trading Monday. Treasurys and the dollar were higher before the report on weak data and commentary from Germany and the U.K. Still to come is the Treasury's sale of $44 billion in 2-year notes (UST2YR 0.88, -0.03, -3.49%) and a report on consumer confidence.
