On 22 February 2024, Wall Street staged one of its strongest sessions in more than a year, and Nvidia was unmistakably at the centre of it. A blockbuster earnings report from the chipmaker turned a nervous, pull-back week into a decisive tech rebound, sending the Nasdaq Composite up almost 3% and pushing the S&P 500 and Dow to fresh record closes. Beneath the headline move sat a single, powerful theme: accelerating demand for the chips that train and run artificial intelligence.

Nvidia Leads the Tech Rebound

Nvidia shares closed 16.4% higher, a sharp reversal from earlier in the week when the stock had logged its worst day since October. The move added roughly $277 billion to the company's market value, the largest single-session gain in market-cap history at the time, eclipsing the $197 billion gain Meta Platforms had posted just three weeks earlier, and carried Nvidia close to a $2 trillion valuation. Because Nvidia is one of the heaviest weights in the major US benchmarks, its surge alone accounted for a large share of the day's index gains, making it the clear engine of the rebound.

AI Chip Demand Powers the Move

The catalyst was concrete rather than speculative. Nvidia reported record quarterly revenue of $22.1 billion, up 265% from a year earlier, with data-centre revenue of $18.4 billion, up 409% year on year. Quarterly net income reached about $12.3 billion, a 769% jump. Chief executive Jensen Huang said generative AI had “hit the tipping point” and that demand was “surging worldwide across companies, industries and nations.” For markets, the figures confirmed that spending on AI accelerators was translating into real earnings, not just narrative, giving the rally a fundamental anchor.

Nasdaq Surge and the Wider Chip Sector

The enthusiasm spread well beyond a single stock. The Nasdaq Composite jumped almost 3% to close near 16,000, its best session in over a year, while the S&P 500 gained about 2.1% and the Dow rose roughly 1.2%, both setting record closing highs. Other chip and AI-linked names rallied hard, with AMD climbing around 10% and the wider semiconductor complex advancing. Megacap technology shares also gained, and for one session at least, lingering worries about the Federal Reserve's rate path moved to the background.

What It Means for Index Traders

Sessions like this show how much concentration risk sits inside the major US indices. When a single mega-weight such as Nvidia moves 16% on earnings, it can drive the entire Nasdaq and S&P 500 regardless of how the average stock behaves. Traders following index CFDs should note how much of a benchmark's direction can hinge on one company's report, how sharply volatility expands around scheduled earnings, and how gaps can form between the prior close and the next open. Understanding index composition and event timing is central to managing exposure.

Daily market analysis by BCM Markets.