U.S. stocks are poised to decline at the open on Thursday, with S&P 500 futures down 0.3 percent, as traders may lock in profits after the Nasdaq and S&P 500 hit their highest closes in over two months. The Labor Department reported that producer prices unexpectedly fell 0.5 percent in April, versus expectations for a 0.2 percent rise, while the annual rate slowed to 2.4 percent. Initial jobless claims held steady at 229,000, and retail sales edged up just 0.1 percent in April. The Federal Reserve's industrial production report is due before the start of trading.