By Deborah Levine
NEW YORK (MarketWatch) -- The dollar extended gains and Treasury prices fell more on Thursday, after a report showed sales of existing homes jumped last month by more than economists predicted. Separately, the Philadelphia Federal Reserve's factory index slipped to 19.3 this month from 20.3 in December. The dollar index (DXY 79.05, +0.41, +0.52%) , which tracks the greenback against a basket of six other currencies, traded at 78.869, up from 78.775 before the data and from 78.594 late Wednesday. The euro (EURUSD 1.3420, -0.0053, -0.3934%) fell to $1.3468, from $1.3481 earlier and $1.3469 Wednesday. Yields on 10-year notes (UST10Y 3.41, +0.07, +2.16%) , which move inversely to yields, rose 3 basis points to 3.40%.
