The S&P 500 and the Nasdaq managed to eke out tiny gains on Thursday while the Dow Industrial Average ended slightly lower with pressure from tech and retail bellwethers Cisco and Walmart after disappointing forecasts.Market SnapshotThe Dow Jones Industrial Average fell 45.74 points, or 0.13%, to 34,945.47, the S&P 500 rose 5.36 points, or 0.12%, to 4,502.24 and the Nasdaq Composite rose 9.84 points, or 0.07%, to 14,113.67.Market MoversWalmart (WMT) reported third-quarter earnings that beat analysts’ estimates and raised fiscal-year guidance. But the stock fell 8.1%, after the outlook from the world’s largest retailer disappointed.U.S.-listed shares of Alibaba (BABA) fell 9.1% after the Chinese e-commerce and cloud-computing company reported fiscal second-quarter earnings that were