US Stock Futures Down Ahead Of Wal-Mart Earnings, Economic Data

Pre-open movers US stock futures dropped in early pre-market trading, ahead of earnings from Wal-Mart Stores (NYSE: WMT ). Data on weekly jobless claims and the consumer price index for January will be released at 8:30 a.m. ET. The Markit PMI manufacturing index (flash) for February will be released at