By Deborah Levine
NEW YORK (MarketWatch) -- The dollar extended gains slightly and Treasury prices stayed up Monday after the Institute of Supply Management's index on U.S. manufacturing activity rose to 53.4 in March. The euro EURUSD -0.4696% slipped to $1.3287, from $1.3296 before the data and $1.3341 late Friday. The dollar index DXY +0.10% which measures the greenback's performance against a basket of six major currencies, rose to 79.047, versus 79.030 and from 78.973 in late North American trade on Friday. Yields on 10-year notes 10_YEAR -1.31% , which move inversely to prices, stayed down 3 basis points to 2.18%.
