The S&P 500 Helped Trump Make History Last Year — 2026 Is Telling a Very Different Story
The S&P 500's 6% gain in 2026 is a significant drop from its 28% surge in 2025 under President Donald Trump's second term, with investors now confronting a tougher market reality. The rally in 2025 was driven by AI infrastructure spending, corporate tax optimism, and falling inflation, but 2026 has seen a different set of challenges, including stickier inflation and high valuations.
The S&P 500's performance in 2026 is a stark contrast to its 28% surge in 2025 during President Donald Trump's second term. In 2025, the index was driven by AI infrastructure spending, with hyperscalers projecting over $340 billion in combined capital expenditures, corporate tax optimism, and falling inflation. The top 10 companies in the S&P 500 accounted for more than 38% of the index's total market capitalization by December 2025. However, 2026 has seen a different set of challenges, including stickier inflation, with core inflation hovering around 3.5% in early 2026, and high valuations, with the S&P 500 trading at 24 times forward earnings. The energy sector has led the way in 2026, with a 30.7% return, driven by tighter global supply conditions and rising electricity demand tied to AI data centers. The S&P 500's 6% gain year to date is a healthy return historically, but it is a significant drop from the previous year's performance.
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