US data center investment, projected at $10 trillion, is now the largest financial bet in US history, surpassing the railroad expansion, and its economic impact is nearly 4% of GDP, almost twice that of railroads, according to a Columbia Business School report. The boom is crowding out other construction: data center construction value has more than doubled to $85 billion a year, while all other construction fell 8%, and new houses and apartments dropped $29 billion as data center value rose $48 billion since 2024. Many states that granted tax exemptions earlier are now rethinking their approach; Nevada trimmed abatements and will make data centers cover energy and water costs. Texas ($638 billion), Virginia ($249 billion), Ohio ($169 billion) and Georgia ($160 billion) are projected to see the most spending over three years. Officials and economists note AI profitability has yet to catch up with the spending, and warn that growth relying on this narrow base is fragile.
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NVDA
▲ Likely positiveNvidia
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Semiconductors |
| Market cap | $5.2T |
| Close on 10/21/2026 | 221.87 |
| Change that session | +2.49% |
AMZN
▲ Likely positiveAmazon
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Consumer Discretionary |
| Industry | Broadline Retail |
| Market cap | $2.7T |
| Close on 10/21/2026 | 262.28 |
| Change that session | -0.13% |
GOOGL
▲ Likely positiveAlphabet Inc. (Class A)
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Communication Services |
| Industry | Interactive Media & Services |
| Market cap | $4.3T |
| Close on 10/21/2026 | 334.67 |
| Change that session | -1.65% |
META
▲ Likely positiveMeta Platforms
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Communication Services |
| Industry | Interactive Media & Services |
| Market cap | $1.9T |
| Close on 10/21/2026 | 698.43 |
| Change that session | +0.60% |
MSFT
▲ Likely positiveMicrosoft
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Systems Software |
| Market cap | $4.0T |
| Close on 10/21/2026 | 532.81 |
| Change that session | +0.18% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
Related news
- Data centers are now the largest financial bet in US history
U.S. data center investment now exceeds all past booms, with about $10 trillion in projected spending and an economic impact of nearly 4% of GDP, almost twice that of 19th-century railroad construction (about 2% of GDP, $173 billion in today's dollars). Texas ($638 billion), Virginia ($249 billion), Ohio ($169 billion) and Georgia ($160 billion) are projected to receive the most spending over three years. New data center construction has more than doubled to $85 billion a year while other construction fell 8%, with data centers adding $48 billion since 2024 as new houses and apartments dropped $29 billion, and economists warn the narrow, fragile growth base and unproven AI profitability could lead to sharp cutbacks. Several states are rethinking tax breaks granted before the boom, as tax revenues and energy costs take a toll.
- Data centers are now the largest financial bet in US history
Data center investment is surpassing every previous US boom, with a Columbia Business School report projecting $10 trillion in spending and an economic impact of nearly 4% of GDP, almost twice that of the railroad expansion. New data center construction value has more than doubled to $85 billion annually, while all other construction value fell 8%, and new houses and apartments dropped $29 billion as data center value grew $48 billion since 2024. Texas, Virginia, Ohio and Georgia are projected to account for the largest costs, and Nevada has trimmed tax abatements and required data centers to cover energy and water demands. Analysts say AI profitability has yet to catch up with the buildout, and economist Josh Bivens warns that growth relies heavily on one fragile sector.
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Shares of NextDC, one of Australia's largest data centre builders, fell 40% after the company said delays at its flagship Melbourne site would leave revenue forecasts short. The delays followed community concerns over its M3 expansion, which led Jemena to pause construction of 22-metre power poles in Footscray. The article points to wider strain in the sector: Firmus cancelled its Australian listing for lack of demand, Nscale is struggling to attract buyers for a Wall Street listing, and CoreWeave dropped 15% in a day. It also notes that investment could reach US$10 trillion (A$14.25 trillion) by 2032, while higher borrowing and construction costs and the need for AI firms to lift revenue 80% a year for six years add pressure.
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