S&P 500 Hits Record High Driven by Just 3% of Stocks

The S&P 500 reached a new all-time high on Tuesday, but this milestone was driven by a small fraction of its components. Only 15 out of the 504 stocks in the index, just 3%, hit record highs, highlighting a significant disparity within the market.

The median S&P 500 stock remains in a bear market, trading 25% below its own all-time high. Nearly 58% of the index's stocks are at least 20% below their peaks, and 88 stocks are down 50% or more from their highs. This divergence is evident in the year-to-date performance: while the S&P 500 is up 13.8% in 2026, the median stock has only gained 3.5%, and 44% of the members are down for the year.

The gap is further highlighted by the performance of the Invesco S&P 500 Equal Weight ETF (RSP), which trades 5.1% below its record high. The ratio between the cap-weighted S&P 500 and its equal-weight version has never been wider, indicating that a few large companies are driving the index's performance.

The 15 record-setting stocks are primarily in the technology sector, particularly those involved in data-center hardware and cybersecurity. Nvidia Corp. (NVDA) alone accounts for a significant portion of this group's market value, with a 26.5% year-to-date gain. Other notable names include Advanced Micro Devices Inc. (AMD), Palo Alto Networks Inc. (PANW), and CrowdStrike Holdings Inc. (CRWD). Outside of tech, companies like Valero Energy Corp. (VLO) and Johnson Controls International plc (JCI) also set records.