By Deborah Levine
NEW YORK (MarketWatch) -- Treasury prices declined early Wednesday, pushing yields up for the first day in three, before the government sells $21 billion in 10-year notes, the second of three auctions this week. Traders were concerned they won't see the type of demand that the 3-year note sale (UST3YR 1.17, -0.06, -4.82%) received Tuesday. "Without any pressing economic data today, the focus will be about supply of 10's and 30's," Thomas di Galoma, head of fixed income rates trading at Guggenheim Partners, wrote in an email. Ten-year note yields (UST10Y 3.38, -0.05, -1.31%) rose 4 basis points to 3.42%.