US Treasury Yields Crater To One-Month Low As AI-Stock Selloff Fuels Flight To Safety

US Treasury yields fell sharply on Thursday, with the 10-year dropping below 5% to its lowest close since mid-September, as a selloff in high-growth tech and communication-services stocks sent investors rotating into government debt.

Executive Summary:

• The 10-year Treasury yield fell 19.8 basis points to 4.951%, its lowest close since September 17, while the 30-year dropped to 5.286% and the 2-year fell to 4.648%.
• The move tracked a broad equity rotation out of tech and communication-services names and into defensive sectors, as investors grew uneasy about heavy corporate debt issuance tied to AI infrastructure spending.
• A worsening fiscal and political crisis in France added to the risk-off tone, with capital flowing out of European assets and into US government debt.

Macro Breakdown: The selloff centered on concerns about how AI infrastructure build-outs are being financed. Interactive Brokers economist José Torres summed up the mood bluntly: tech stocks were falling as lackluster earnings reports sparked worries about an AI slowdown, with Meta’s reported move to raise its capital-spending forecast and issue a new class of nonvoting stock to fund its AI plans doing little to settle investor nerves. Defensive sectors told the other half of the story — consumer staples rose more than 3%, utilities gained about 2%, and health care added 1.3%, a classic rotation pattern when investors are de-risking rather than exiting markets outright.

Currency Pair & Market Impact: Falling Treasury yields have been easing broader financial conditions even as they signal underlying nervousness, a combination that tends to weigh on the dollar at the margin while supporting risk assets outside the specific sectors under pressure. The France connection matters here too: with French 10-year OAT yields pushing toward 24-year highs on budget and political turmoil in Paris, some of the capital leaving European sovereign debt and equities has found its way into US Treasuries, reinforcing the same move that domestic AI-valuation worries were already driving. Money markets are pricing a hold from the Federal Reserve at its October 27-28 meeting, keeping the policy rate at 3.75%-4.00%, which means Thursday’s yield drop was almost entirely a demand-side, risk-sentiment story rather than a shift in rate expectations.

Forward-Looking Outlook: With the Fed decision landing October 28 and markets already leaning toward a hold, the next real test for this move is whether AI-sector earnings over the coming weeks calm or deepen the valuation concerns driving the rotation into Treasuries. A continuation of the French fiscal crisis would likely keep adding a second, independent source of demand for US government debt on top of whatever the domestic tech story does on its own.

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