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Since the COVID-19 pandemic, U.S. tech stocks have led in terms of market cap gains, sometimes boosting their valuations by hundreds of billions of dollars in a single day.

In this graphic, we’ve ranked the largest single-day gains ever recorded, using data from Bloomberg.

Top 10 List

The top 10 list includes just 5 companies, and all are based in the U.S.

To put these massive gains into context, consider this: As of May 2023, the average market cap of an S&P 500 company was $30.4 billion.

Meta’s $197B Record Didn’t Last Long

On Feb 2. 2024, META set a new record for the largest single-day gain after reporting strong quarterly earnings, as well as announcing $50B in share repurchases and its first ever dividend payment.

This record lasted only 20 days, however, as Nvidia’s massive Q4 2024 earnings beat sent it to all-time highs. The firm is now nearing a $2T valuation, firmly placing it among the world’s most valuable corporations.

More on Nvidia’s Earnings…

Nvidia (NVDA) reported $12.3B in net income during Q4 2024, which is 769% higher than the same quarter last year. Revenues are also up 265% from last year, largely driven by demand for its AI chips like the H100 Tensor Core GPU.

Nvidia’s earnings have seemingly shifted the AI craze into another gear, boosting other chip stocks like AMD and Super Micro Computer (SMCI) to double-digit % gains for the day (Feb 22).

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