This year has been imposing for Walmart Inc. (WMT) , with its shares soaring 30.7% year to date, slightly more than the Retail - Supermarkets industry’s gain of 28.3%. The big-box retailers’ shares did break out beyond their resistance level in mid-May to register a sustained northward movement.Image Source: Zacks Investment ResearchWhat’s more, Walmart’s stock price closed at $68.70 on Aug. 12, just above its 50-day moving average (DMA) of$68.43, signifying a further short to medium-term positive uptrend. ...