How did the US stock market do in 2010?

In 2010, the U.S. Stock Market experienced a year of volatility but ultimately ended on a positive note. The S&P 500 index gained approximately 12.8% for the year, recovering from the financial crisis and benefiting from improving economic conditions. However, mid-year concerns about the European debt crisis and slowing economic growth in the U.S. led to fluctuations. Overall, the market showed resilience and a gradual upward trend throughout the year.