Best-Performing S&P Composite 1500 Stocks at Midpoint 2026
One of the clearest themes during the first half of 2026 was the remarkable breadth of the artificial intelligence (AI) investment cycle.
This month’s First Cut identifies the S&P Composite 1500 index stocks that have the highest price change during the first half of this year compared to their peers. We present the top 10 stocks for each of the three component indexes that constitute the S&P Composite 1500, allowing you to see if leadership varies by company size.



