The S&P 500 and Nasdaq Composite closed at record highs on Thursday, capping off the best February performance for both indices in nearly a decade. The Nasdaq Composite finished the day up 0.9% at 16,091.92, marking its highest close on record since November 2021. The S&P 500 added 0.5% to reach a new record high of 5,095.88. The Dow Jones Industrial Average also saw a slight increase of 0.1% on the day. Both the Nasdaq and S&P 500 experienced their best February performances since 2015, with the Nasdaq gaining over 6% and the S&P 500 adding more than 5% for the month.