US Treasury 3-Year Auction Sees Foreign Central Banks Return in Force, Highest Stop-Through Since Feb 2025

Foreign demand for US debt has snapped back with force. The latest 3-year Treasury note auction saw foreign central banks, classified as indirect bidders, take down 74.8% of the offering—the second-highest foreign participation level on record. This surge follows weeks of aggressive selling by these same entities, marking a sharp and significant reversal in sentiment for a key pillar of US government financing.

The $58 billion auction stopped through the When Issued yield by 1.2 basis points, the largest such positive deviation since February 2025 and the seventh stop-through in the past eight auctions. The high yield of 3.897% was notably higher than last month's 3.579%, reflecting the ongoing higher-rate environment, but the robust demand, evidenced by a bid-to-cover ratio of 2.682, indicates strong absorption at these levels. The internals signal a powerful re-engagement from major overseas official institutions.

This abrupt return of foreign buyers alleviates immediate pressure on a market that had been contending with a visible retreat from a critical buyer base. The shift provides crucial support for Treasury issuance but also highlights the volatility and sensitivity of global capital flows to US debt. The auction's strength, particularly the stop-through and foreign allotment, will be closely scrutinized as a barometer for upcoming longer-duration sales and the sustainability of demand amid elevated yields.