By Deborah Levine
NEW YORK (MarketWatch) -- Treasury prices extended gains and the dollar stayed up on Monday after the Institute for Supply Management's manufacturing index for June unexpectedly contracted slightly. Yields on 10-year notes 10_YEAR -1.76% , which move inversely to prices, fell 7 basis points to 1.60%, from 1.62% before the data. The euro EURUSD -0.71% fell to $1.2599, from $1.2603 earlier and $1.2658 in late North American trade Friday. The dollar index DXY +0.31% , a measure of the U.S. unit's performance against six major currencies, rose to 81.845 from 81.658 Friday.
