Markets
S&P 500 nears record high as market cap tops $71 trillion
The index rose about 0.5% even as the 10-year yield hit a 24-year high, with megacaps still doing the heavy lifting

On Oct. 5, the S&P 500 closed up about 0.5% at roughly 7,810, leaving it less than 1% below its Aug. 13 closing record. Market reports said the index was on track for its 28th record close of 2026 if that move holds in the closing tally.
The rally came even as the U.S. 10-year Treasury yield climbed to a 24-year high, underscoring how far equities and rates have moved in opposite directions. Since the last all-time closing high, only two of the S&P 500’s 11 sectors — technology and energy — have posted gains, with Nvidia, Apple and Microsoft doing much of the index-level lifting.
Kobeissi Letter said the S&P 500’s market capitalization had climbed above $71 trillion, with roughly $500 billion added in one session. The move highlights how concentrated the benchmark has become, and how much of its near-record stance still depends on a handful of mega-cap names.
There was no fresh company-specific catalyst attached to the move in the available reports. For traders, the key question now is whether higher yields keep weighing on breadth while the largest tech stocks continue to offset that pressure.
Sources:reuters.comreuters.com
