The Treasury announced on Sept. 9 it will repurchase up to $6 billion of 20‑ to 30‑year Treasury notes. Within minutes, the 10‑year yield rose four basis points to 4.85%, reflecting market disappointment that the program falls short of earlier speculation about a $10 billion ceiling.
The buyback program, revived in 2024, is intended to smooth liquidity in the long‑dated market and encourage primary‑dealer participation in upcoming auctions. By setting a lower maximum than many investors expected, the Treasury triggered immediate sell‑off pressure on the benchmark 10‑year, suggesting that dealers had priced in a larger intervention.
Under the framework, the Treasury can purchase securities on the open market up to a stated limit. Since its relaunch, the agency has completed the full amount in 50 of 52 operations, according to data compiled by ZeroHedge. The $6 billion figure therefore represents a ceiling, not a guaranteed purchase, and actual acquisitions could be smaller.
BNP Paribas U.S. rates strategist Guneet Dhingra warned before the announcement that a ceiling below $7 billion would likely spark selling. The four‑basis‑point spike that followed aligns with that forecast, indicating dealers view the size as insufficient to offset the natural drift of long‑dated supply. Primary dealers may now trim long‑dated inventories and scale back bids in the next auction.
On the same day, Treasury Secretary Scott Bessent spoke at an event in Texas, saying “I am the house now” in reference to short‑selling of the Japanese yen. The remark, reported by Bloomberg and ZeroHedge, signaled the Treasury’s willingness to intervene in currency markets to curb speculative bets against the yen.
Hedge funds have already begun shifting toward bullish yen positions, targeting $150‑$152 per dollar by year‑end, while Japanese retail investors remain net short yen by roughly ¥3.61 trillion ($23.5 billion). A stronger yen would make dollar‑denominated carry trades less attractive, pressuring equities with Japanese exposure and prompting FX traders to hedge or unwind short positions.
For fixed‑income investors, the immediate impact is a mark‑to‑market loss on 10‑year holdings and a reassessment of duration risk. Banks that serve as primary dealers must balance the Treasury’s liquidity goals against the volatility in yields that can affect their balance sheets. Meanwhile, the yen‑short community faces heightened scrutiny and may encounter reduced appetite from counterparties wary of policy‑driven reversals.
The Treasury has not indicated whether it will adjust the buyback ceiling in response to market feedback. Analysts at Evercore ISI note that a larger ceiling could restore confidence, but statutory authority caps the program at the announced level.
As the market digests both the bond‑buyback size and the yen comment, the next primary‑dealer auction will test whether dealer participation rebounds or remains subdued. The episode illustrates how a single policy announcement can reverberate across debt and currency markets, keeping investors alert for further signals from the Treasury.