The Rally That Defies Gravity (And Our Understanding) The S&P 500's relentless march to new highs has left investors and analysts scratching their heads.
With 25 all time records in 2026 alone, this year's rally is shaping up to be one for the record books. Nvidia and Micron have been the driving forces behind this surge in the S&P 500's performance.
Nvidia's massive weight in the index has contributed significantly to its overall value, but Micron's impressive 208% year to date return has had a disproportionately large impact on the market.