CHRISTINA REXRODENEW YORK (AP) â¿¿ One piece of good news on jobs was enough Thursday on Wall Street. The stock market popped higher after the Labor Department reported an encouraging decline in weekly claims for unemployment insurance. That one piece of good news was enough to help traders forget about a drumbeat of worrisome developments, like a widening U.S. trade deficit, higher unemployment in Greece and a ratings cut for Spain.' The major stock indexes all rose, putting the market on track for its first up day this week. At midday, the Dow Jones industrial average was up 23 points to 13,368, a stark reversal from two straight days of triple-digit declines. The Standard & Poor's 500 was up five to 1,438. The Nasdaq composite index was up seven to 3,058. That might seem puzzling. But maybe the market is so used to bad news that it's easy enough to shrug off â¿¿ particularly the S&P downgrades, which some investors don't place much faith in anyway. Or maybe people are looking for a reason to invest, anxious to meet year-end investment goals. "If you look at bank reserves, personal balance sheets, business balance sheets, there's money on the sidelines that wants to get put to work," said Joe Costigan, director of equity research at Bryn Mawr Trust Company in Pennsylvania. "And I think that at the moment, any good news is drawing capital to it and we're now in the process of looking past the bad news." Also fueling the stock market was a note from Citi analysts, upgrading U.S. stocks to the equivalent of buy. The analysts, led by Hasan Tevfik and Robert Buckland, argued that stocks are relatively cheap and that central banks seem likely to take more steps to try to boost the economy. Still, their report wasn't all cheery. "Profits are slowing around the world," they wrote, "and (earnings-per-share) expectations need to be cut further, in our view."