ManpowerGroup Inc. (MAN) shares soared 32.57 percent, gaining $12.71 to trade at $51.73 on Thursday, after the workforce solutions provider returned to profitability in the second quarter, driven by higher revenue and a one-time gain from the sale of its Jefferson Wells U.S. .The stock opened at $46.78 and traded between $46.79 and $52.19 during the session on the Nasdaq. It has traded in a 52-week range of $25.15 to $52.19. Trading volume reached 2.15 million shares, compared with an average daily volume ...