Mark Cuban, who calls himself the biggest AI proponent, warns that debt financing behind the AI buildout could create a “debt bubble” in the United States. He says hyperscalers are borrowing more than they earn while the federal deficit keeps rising, and puts the 10-year Treasury yield at about 5.2%, while Federal Reserve data showed 4.99% on Oct. 27. Bloomberg reported net interest costs of $1.05 trillion in fiscal 2026, and the CBO put the fiscal 2026 deficit at $2.0 trillion. NVIDIA has invested nearly $50 billion in frontier AI labs and has guarantee obligations capped at $108.5 billion, while hyperscalers and related companies had issued $225 billion in bonds as of late July. Cuban said the stock market is in a bubble but he has no idea what will cause it to burst, and he told average listeners to stay patient and keep some cash.
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artificial intelligencebondspublic debtNVDAAI investment
Open a keyword to see other news on the same topic.
Related tickers and likely impact
NVDA
▼ Likely negativeNvidia
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Semiconductors |
| Market cap | $5.1T |
| Close on 10/28/2026 | 215.39 |
| Change that session | -1.17% |
AMZN
▼ Likely negativeAmazon
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Consumer Discretionary |
| Industry | Broadline Retail |
| Market cap | $2.7T |
| Close on 10/28/2026 | 254.65 |
| Change that session | +0.61% |
GOOGL
▼ Likely negativeAlphabet Inc. (Class A)
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Communication Services |
| Industry | Interactive Media & Services |
| Market cap | $4.0T |
| Close on 10/28/2026 | 325.61 |
| Change that session | +1.57% |
META
▼ Likely negativeMeta Platforms
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Communication Services |
| Industry | Interactive Media & Services |
| Market cap | $1.7T |
| Close on 10/28/2026 | 612.49 |
| Change that session | -1.24% |
MSFT
▼ Likely negativeMicrosoft
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Systems Software |
| Market cap | $3.9T |
| Close on 10/28/2026 | 530.83 |
| Change that session | -0.09% |
QQQ
▼ Likely negativeInvesco QQQ Trust
Relevance: low
| Market | US stocks |
|---|---|
| Sector | ETF |
| Close on 10/28/2026 | 725.59 |
| Change that session | +0.60% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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