Growth has been concentrated among the largest companies, leaving small-cap stocks behind. The performance gap between the S&P 500 and the Russell 2000 has reached nearly 55 percentage points, the widest such disparity recorded at the inception of any bull market.
Tuesday, October 20, 2026
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S&P 500’s 4 Year Bull Run is Longest Since 2009
US Markets8 days ago
The primary benchmark for US large-cap equities has climbed more than 110% since terms of the current uptrend began on Oct. 12, 2022. This rally is the longest growth period for the S&P 500 since therecovery following the 2008 financial crisis. Nvidia has served as a primary engine for the gains, with its market capitalization surging to $5.8T from $286B at the start of the four year period.
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