U.S. Treasury Yields Drop to 1-Month Lows on Safe-Haven Flows

U.S. Treasury Yields Drop to 1-Month Lows on Safe-Haven Flows

**The 10-Year Just Fell Below 5.05%. The 30-Year Hit Its Lowest Since September. And the Reason Isn't the Fed—It's the AI Trade Finally Cracking.**

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## The Morning the Bond Market Woke Up

Let me tell you about a woman named Rachel. She's a financial advisor in Denver. She manages money for about sixty families—teachers, small business owners, retirees. People who trust her to keep their savings safe.

For months, Rachel has been telling her clients the same thing: don't fight the bond market. Yields are going up. The Fed is hawkish. Inflation is sticky. Get used to higher rates.

Then Thursday happened.

The 10-year Treasury yield fell to **5.04%**—its lowest level in about a month . The 30-year dropped to **5.38%**, its lowest since September 23 . Yields across the curve fell by at least 3 basis points, with some maturities seeing declines of up to 16 basis points .

Rachel called me Thursday afternoon. She wasn't panicking. She was confused.

"I've been telling people to expect higher yields for so long," she said. "Now the bond market is rallying and I'm not sure why."

The answer is simpler than she thinks. And it's the same answer that's been staring at us for weeks.

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## The Numbers: A Sharp Reversal

Let's get the data on the table, because the move was significant.

**Thursday's Close:**

| Maturity | Yield | Change |

|----------|-------|--------|

| **10-Year Treasury** | **5.04%** | Down ~9 basis points |

| **30-Year Treasury** | **5.38%** | Down ~3 basis points |

Source: 

The 10-year had been hovering near **5.31%** as recently as October 5—its 52-week high . The move to 5.04% represents a meaningful retreat from those levels.

**The Global Picture:**

The rally wasn't limited to the U.S. German 10-year Bund yields fell from a peak of 3.65% at the end of September to around 3.42% . Japanese and Swiss currencies strengthened as investors sought traditional safe havens .

**The Futures Signal:**

Treasury futures also rallied, with five- to 30-year yields reaching their lowest levels in nearly a month . The move caught traders off guard—many had been positioned for yields to keep climbing.

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## Why This Is Happening: The AI Trade Is Cracking

Here's the part that matters. The bond rally isn't about the Fed. It's not about inflation data. It's about **stocks—specifically AI stocks—falling, and money running for cover**.

**The AI Selloff**

Tech and AI-related stocks have come under pressure this week. Tesla fell about **5%** premarket after missing revenue expectations and cutting capital expenditure targets. Marvell Technology dropped roughly **5%** . The broader AI trade, which has driven markets for two years, is showing signs of strain.

"Recent market sentiment has clearly become more fragile, and investors are re-examining AI-related assets," said Eugene Leow, senior rates strategist at DBS Bank. "Doubts about profitability and return on investment are quietly spreading" .

**The Safe-Haven Shift**

When AI stocks fall, investors need somewhere to put their money. Historically, that's been Treasuries. But for much of the past few years, that relationship broke down—oil-driven selloffs pushed both stocks and bonds lower together .

This week, the old relationship reasserted itself. As AI stocks tumbled, Treasuries rallied.

"To paraphrase Mark Twain, rumors of the death of US Treasuries are greatly exaggerated," said James Athey, a portfolio manager at Marlborough Investment Management .

**The Crowded Bet Unwinding**

There's a technical factor amplifying the move. Commodity trading advisers—trend-following funds—had built bearish Treasury futures positions at "extremely short" levels, according to Bloomberg. When yields started falling, those funds were forced to exit their bets, adding fuel to the rally .

That's a classic short squeeze in the bond market. And it explains why the move was so sharp.

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## The AI Debt Question: CoreWeave and Beyond

The AI selloff isn't happening in a vacuum. It's connected to growing concerns about how the AI boom is being financed.

**CoreWeave's Bond Warning**

Earlier this week, CoreWeave's 2032 bonds yielded nearly **15%** in secondary trading—a level that signals serious investor concern about the company's debt load. The stock plunged **16%** on the news .

CoreWeave has borrowed more than **$35 billion this year** to fund its AI data center buildout. Its interest expense more than doubled to **$640 million** in the second quarter. And analysts expect negative free cash flow of about **$25 billion** this year.

When investors demand 15% to lend to an AI company, that's not a vote of confidence. It's a warning.

**The Contagion Effect**

The CoreWeave selloff spread across the AI infrastructure sector. Nebius Group fell **10%**. IREN dropped sharply . And the broader tech selloff fed directly into the Treasury rally.

"If investors are seeing their AI-linked bonds losing value, they will be less interested in buying new bonds," said John Briggs, head of U.S. rates strategy at Natixis North America .

**The $1.7 Trillion Problem**

Investment-grade companies—led by megacap technology firms—have sold about **$1.7 trillion of bonds this year**, up roughly **29%** from a year earlier . The AI buildout is being financed by debt. And when that debt starts to look risky, the whole system feels it.

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## The Fed Factor: A Hold Is Coming

While AI fears are the primary driver, the Fed is also in the background.

The Federal Reserve meets next week, and markets are pricing an approximately **89% probability** that rates will be left unchanged . The odds of a 25-basis-point hike in December have risen to around **76%**, but October looks like a hold.

That's a shift from earlier this month, when traders briefly priced a **50% chance** of an October hike . The AI selloff and the bond rally have eased expectations for immediate tightening.

BMO Capital Markets expects the Fed to hold in October, then hike in December. But the firm warned that the market's confidence in a December hike—implied probability around **90%**—may be overdone .

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## Frequently Asked Questions

**Q: What exactly happened to Treasury yields on Thursday?**

A: The 10-year Treasury yield fell to **5.04%**, its lowest in about a month. The 30-year dropped to **5.38%**, its lowest since September 23. Yields fell across the curve, with some maturities seeing declines of up to 16 basis points .

**Q: Why did yields fall?**

A: The primary driver was a **safe-haven flow** triggered by a selloff in AI-related stocks. Investors worried about AI valuations and debt levels sold tech shares and bought Treasuries. The move was amplified by trend-following funds unwinding bearish Treasury positions .

**Q: What does this mean for mortgage rates?**

A: Mortgage rates follow the 10-year Treasury yield. With the 10-year at 5.04%, down from 5.31% earlier this month, mortgage rates could ease slightly. But they remain historically elevated, and the decline may be temporary .

**Q: Is the bond rally sustainable?**

A: That's unclear. Deutsche Börse noted that "the current recovery is not yet evidence of a sustained trend reversal" . The underlying pressures—inflation, Fed hawkishness, heavy corporate bond issuance—haven't disappeared. The rally is driven by fear, and fear-driven rallies can reverse quickly.

**Q: What is the CoreWeave connection?**

A: CoreWeave, an AI cloud provider, saw its bond yields spike to nearly 15% this week on concerns about its $35 billion debt load. The stock fell 16%. That triggered broader worries about AI debt financing, which fed into the Treasury rally .

**Q: What should investors watch next?**

A: The Fed's meeting next week is the key event. Markets expect a hold, but the December decision is still in play. Also watch AI stock earnings and any further signs of stress in AI-related credit markets .

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## Conclusion: The Safe Haven Returns

Here's what I keep coming back to when I think about Rachel, the advisor in Denver.

She spent months telling clients that bonds were dangerous. Yields were going up. The Fed was tightening. Inflation was sticky. Stay short. Stay defensive.

Then the AI trade cracked, and suddenly Treasuries were the safest place to be.

That's the irony of this moment. The same technology that's been driving markets higher for two years—AI—is now driving money into the one asset class that's supposed to protect you when everything else falls.

The 10-year at 5.04% isn't a dramatic number. It's still well above where it was a year ago. But the direction matters. And the reason matters more.

This isn't a Fed pivot. It's not a sudden belief that inflation is conquered. It's a flight to safety. Investors are worried about AI valuations, AI debt, and the sustainability of the boom that's powered this market.

When they get worried, they buy Treasuries. And when they buy Treasuries, yields fall.

For Rachel and her clients, the message is simple: the bond market isn't dead. It's just been waiting for a reason to rally.

The AI selloff gave it one.

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## Disclaimer

**This article is for informational and educational purposes only. It does not constitute investment, financial, or trading advice. The author has no positions in any securities mentioned. Information presented here is based on publicly available sources and reported figures as of the publication date. Market conditions change rapidly, and bond yields are subject to significant volatility. The safe-haven flow described may reverse without notice. Investing involves risk, including the potential loss of principal. Always consult with a qualified financial advisor before making any investment decisions.**