S&P 500 Gains and Losses Today: Epam Systems Leads Losses as Stocks Fall on Walmart Weakness
1. S&P 500 retreated from record highs amid market volatility. 2. EPAM shares fell 12.8% after weak earnings outlook; growth concerns arose. 3. Strong quarterly numbers were overshadowed by lower full-year EPS guidance. 4. Peers like Walmart and Hasbro experienced contrasting market reactions.