Key TakeawaysTarget shares jumped Wednesday after the retailer posted second-quarter earnings that beat expectations.Comparable store sales returned to growth in the quarter, as Target said traffic in stores and digital sales grew from the same time last year.The retailer lifted its projections for full-year profits, thanks to the strong second-quarter results. Target (TGT) shares soared Wednesday after the retailer's second-quarter earnings beat estimates, leading Target to lift its projections for full-ye ...