By Deborah Levine
NEW YORK (MarketWatch) -- The dollar turned lower versus the euro and British pound and stayed down against the Japanese yen in midmorning trading on Wednesday as U.S. stocks extended gains to more than 1% after being in negative territory in pre-market activity. The euro (CUR_EURUSD 1.2631, +0.0006, +0.0475%) rose back above $1.26, to $1.2633, compared to $1.2618 in late North American trading Tuesday. The dollar index (DXY 83.93, -0.15, -0.18%) , a measure tracking the performance of the greenback against a basket of six major currencies, fell to 83.920, from 84.113 late Tuesday. With no U.S. economic data on the calendar, currency traders are left to react to U.S. stocks as a proxy for the economic outlook and investors' willingness to shift back into riskier assets, including equities.