[Limited Gains at U.S. Market Open, Ventyx Soars 49%] At the U.S. market open, the Dow rose 0.1%, the S&P 500 increased 0.03%, and the Nasdaq gained 0.02%. GameStop rose 3.97% after the company announced a performance-based compensation plan for CEO Ryan Cohen. Ventyx soared 49%, reportedly as Eli Lilly nears a deal to acquire the company for over $1 billion.