Usman Salis
The U.S. stock market has reached a new milestone, with the S&P 500's total market capitalization soaring to unprecedented levels. Investors are now witnessing one of the most remarkable recoveries in market history, driven by mega-cap tech stocks and a surge in investor confidence.
Market Surges to All-Time High
According to a post The Kobeissi Letter on X, the S&P 500 reached a record $55.7 trillion in market cap on July 3, 2025, as shown in the chart by Econovis. This marks the highest level in history, surpassing its previous peaks including $55.0T on June 30, $54.6T on February 19, and $54.4T on January 23.
The rally represents a staggering $11.4 trillion recovery from the April 8 low of $44.3 trillion, following a sharp dip in March. The index also climbed from $52.6T on May 30 and $50.4T on April 2, indicating strong momentum.
Nvidia (NVDA) Leads with $1.6 Trillion Surge
Much of the gains can be attributed to mega-cap stocks, with Nvidia (NVDA) alone adding $1.6 trillion in value, bringing its total market capitalization to $3.9 trillion.
On a year-over-year basis, the S&P 500 has grown by $6.9 trillion, or +14.6%, highlighting the strength of the ongoing recovery. From a low of $45.8T on August 5, 2024, the index has steadily climbed — fueled by AI optimism, tech performance, and renewed investor confidence.
Usman Salis
