# US 10-Year Treasury Yields Drop Despite Hotter Inflation as Economic Growth Fears Rise

- URL: https://stocks.freetheai.org/news/us-10-year-treasury-yields-drop-despite-hotter-inflation-as-economic-growth-4360b5
- Published: 2026-10-15T22:15:17Z
- Category: macro; sentiment: mixed; impact: high
- Symbols: [NASDAQ:CRWV](https://stocks.freetheai.org/symbols/NASDAQ-CRWV), [KRX:KOSPI](https://stocks.freetheai.org/symbols/KRX-KOSPI)
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US consumer prices rose faster than expected in September, with headline inflation reaching 3.7% year-over-year against a 3.6% forecast, and core inflation rising 2.6% versus a 2.5% estimate. Following the release, the US 10-year Treasury yield initially climbed above 5.3% before reversing to 5.19% and falling further to 5.105% in Asian trading. Futures markets reacted by boosting the probability of a 0.25 percentage-point interest rate increase at the October central bank meeting to 29.3%, up from 17.7% a week earlier.

The drop in long-term bond yields despite hotter inflation signals growing market concern that high borrowing costs could stall economic growth. Elevated rates are also putting financial pressure on heavily leveraged technology infrastructure companies such as CoreWeave, Inc. Class A (NASDAQ:CRWV), whose bond yields surged past 15% as credit risk rose. A pullback in data center capital expenditures could ripple into semiconductor suppliers, as seen when South Korea's KOSPI Composite Index (KRX:KOSPI) tumbled 7.57% during the prior session alongside sharp declines in major memory chipmakers.

Investors will monitor incoming economic data and central bank rate decisions to gauge whether elevated inflation will force further monetary tightening. Markets will also track credit conditions and bond yields for AI infrastructure providers, as high funding costs could weigh on data center investments and global chip demand.

## Key points

- US CPI rose 3.7% year-over-year in September, exceeding the 3.6% forecast, while core CPI reached 2.6%.
- The US 10-year Treasury yield dropped to 5.105% after an initial spike above 5.3%, driven by growth concerns.
- CME FedWatch data indicated the probability of an October rate hike increased to 29.3% from 17.7%.
- Rising interest rates pressured CoreWeave corporate bonds, pushing yields above 15% amid credit risk scrutiny.
- South Korea's KOSPI dropped 7.57% on AI hardware spending fears before recovering 3.08% to 5,725.

## Questions and answers

### Why did 10-year Treasury yields fall after the higher US CPI report?

Long-term Treasury yields fell after an initial spike because investors worried that further interest rate hikes to curb inflation could slow down overall economic growth.

### How does higher inflation affect AI infrastructure companies like CoreWeave?

Companies like CoreWeave rely on heavy debt to buy GPUs and build data centers. Higher interest rates increase funding costs and credit risks, pushing corporate bond yields higher.

### What happened to South Korean chip stocks following the inflation data?

South Korea's KOSPI index fell 7.57% as concerns over reduced AI data center spending hurt major memory chipmakers Samsung Electronics and SK Hynix, triggering circuit breakers during the session.