[TREASURY] ⏱ 3 MIN READ • 2026-10-17 09:30:22 UTC JSON API [RAW]

Foreign Central Bank Custody Outflows Signal Shifting Reserve Dynamics

Foreign central bank custody holdings at the Fed fell $18.2B in the week ended Nov 20, the largest weekly decline since March 2020. The drop, concentrated in long-dated Treasuries, coincides with a 12bp steepening of the 10s30s curve and a widening of the 3-month cross-currency basis.

⚡ EXECUTIVE 30-SECOND INVESTOR MATRIX

🎯 THE SIGNAL

Custody outflows and curve steepening point to reduced foreign demand for long-end Treasuries, pressuring yields higher.

📈 BULLISH VECTORS

US banks and money managers step in to absorb supply, supporting short-term funding markets and steepening the curve.

📉 BEARISH VECTORS

Long-end Treasuries face selling pressure as foreign official demand wanes, pushing 30Y yields toward 4.70%.

⚠️ PRIMARY RISK TRIGGER: A sudden acceleration in custody outflows could trigger a disorderly sell-off in Treasuries, amplifying volatility.

          📄 Read Full Dispatch Intelligence Report (expand)
        

Custody Outflows: Magnitude and Composition Foreign official holdings in Fed custody accounts fell $18.2B in the week ended Nov 20, the largest weekly drop since March 2020. The decline was concentrated in long-dated nominal Treasuries (10Y+), with $12.4B in outflows, while bills saw a modest $2.1B decline. This shift suggests a reallocation away from duration risk among foreign central banks.

Market Pricing and Cross-Currency Basis Coinciding with the outflows, the 10Y-30Y Treasury spread steepened by 12bps to 38bps, and the 3-month EUR/USD cross-currency basis widened by 5bps to -25bps, indicating heightened demand for dollar funding. The 30Y yield rose 8bps to 4.62%, while the 10Y yield increased 5bps to 4.24%. The dollar index (DXY) strengthened 0.4% to 104.8, reflecting custodial dollar demand.

Implications for Treasury Supply and Demand With foreign official demand waning, the burden of absorbing the $1.2T in net coupon issuance expected in Q1 2025 will fall more heavily on price-sensitive investors. Primary dealer inventories of 10Y notes have already risen to 3.8% of outstanding, up from 2.9% a month ago. The Fed's QT program continues to add to supply, with $60B/month in runoff.

Risks and Watchpoints A sustained pace of outflows could push the 30Y yield above 4.75%, testing the 2023 highs. Key watchpoints include the next Treasury refunding announcement on Dec 4, and the November nonfarm payrolls on Dec 6. Additionally, the 5-year CDS spread on US sovereign debt has widened by 2bps to 25bps, a subtle warning sign.