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Animation: Re-sizing U.S. Counties Based on Local Economies

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On a global level, the World Bank estimates that although only 54% of the world’s population lives in urban areas, more than 80% of all economic production happens in cities.

Urban areas provide a combination of network effects and economies of scale that are referred to as “economies of agglomeration”. That’s why countries around the world rely on cities as engines of growth, and the United States is no exception.

Today’s map animation comes to us from Max Galka’s Metrocosm blog, and it helps us to visualize the economic impact of metropolitan areas in the United States. The animation uses a map known as a cartogram which distorts the size of each county based on its relative economic contribution to GDP.

U.S. Map Re-sized Based on Local GDP Contributions

US GDP Cartogram

Galka also provided a static version of the cartogram which highlights the top 10 metro area economies.

Greater New York City is the heavy-hitter here with a $1.5 trillion GDP, which is about the same size as the greater areas of Boston, Philadelphia, Atlanta, and Washington, D.C. combined.

US GDP Cartogram Static

Lastly, for a different perspective on this same data on GDP by county, it may be worth taking a look at a previous post where we included a stunning 3D map that shows economic contribution by city.

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Ranked: Top 10 Single-Day Market Cap Gains

Nvidia broke the record for the largest single-day market cap gains after adding nearly $250B on Feb. 22, 2024.

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The 10 Biggest Single-Day Market Cap Gains

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

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.

RankDateCompanySingle-day
Market Cap Gain
(USD billions)
1Feb 22, 2024NVIDIA$247.0
2Feb 2, 2024Meta$196.8
3Nov 10, 2022Apple$190.9
4Feb 4, 2022Amazon$190.8
5May 25, 2023NVIDIA$184.1
6Jan 28, 2022Apple$178.9
7Jul 31, 2020Apple$169.0
8Oct 28, 2022Apple$150.5
9Mar 13, 2020Microsoft$150.4
10Apr 26, 2023Microsoft$148.3

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 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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