The S&P 500 Index ($SPX) (SPY) this morning is down -0.14%, the Dow Jones Industrials Index ($DOWI) (DIA) is up +0.33%, and the Nasdaq 100 Index ($IUXX) (QQQ) is down -0.43%. US stock indexes this morning are mixed, with the Nasdaq 100 falling to a 1-3/4 month low. Weakness in chip stocks for a second today is weighing on the overall market. Also, rising T-note yields today are undercutting stocks. On the positive side, Genuine Parts Co. is up more than +11% after reporting better-than-expected Q1 adjusted EPS and raising its full-year adjusted EPS estimate. Also, homebuilding stocks are highe…