TBAC says Iran conflict dominated markets

The Treasury Borrowing Advisory Committee told the U.S. Treasury on August 4 that the Iran conflict and its effect on energy prices had been the dominant influence on global markets since early May. In its report, the committee said Brent crude had peaked near $126 a barrel in the spring, then fell into the low $70s through June after a fragile ceasefire and de-escalation. It said tensions reignited in July, lifting oil again, but prices remained well below the spring peak. The committee also said shipping through the Strait of Hormuz had stayed below pre-conflict levels, leaving oil sensitive to headlines. ### What exactly is TBAC, and why do markets care what it says? The Treasury Borrowing Advisory Committee is a quarterly advisory group made up of senior representatives from banks, broker-dealers, asset managers, hedge funds and insurers, the Treasury says. The committee gives the department its views on the economy, market conditions and debt-management issues ahead of the government’s regular refunding announcements. (home.treasury.gov) August 5 was the publication date for the latest TBAC report and refunding materials, even though the committee meeting itself was held on August 4. Those documents are closely watched because they sit alongside Treasury’s borrowing plans and auction schedule for notes and bonds. ### Why did the committee tie market conditions so closely to Iran and oil? The August 4 report said the Iran conflict had remained the main driver of global markets because energy-price moves were feeding directly into rates markets. (home.treasury.gov) The committee wrote that energy volatility and a firming of conditions had influenced rates significantly. Brent crude’s path was central to that account. (home.treasury.gov) The committee said prices surged to about $126 during the spring, then eased sharply after the ceasefire and de-escalation, before renewed July tensions pushed oil back up. It also said reduced shipping through the Strait of Hormuz kept the market vulnerable to new headlines. ### What did TBAC say about Treasury market plumbing? (home.treasury.gov) Minutes published on August 5 said committee members discussed growing reliance on intraday repo and the risks that could create in periods of market stress. The minutes said greater reliance on intraday repo could introduce new risks to market functioning and highlighted frictions in managing intraday liquidity needs under the current market structure. (home.treasury.gov) That language pointed to concern not about headline auction sizes, but about the mechanics that help dealers and investors finance Treasury positions during the day. The minutes did not announce a policy change, but they recorded the committee’s focus on liquidity management and market structure. ### What did Treasury announce alongside the report? The Treasury said on August 5 that it would offer $125 billion of securities to refund about $96.3 billion of privately held notes and bonds maturing on August 15, 2026. (home.treasury.gov) The operation is expected to raise about $28.7 billion in new cash from private investors. The package includes a $58 billion three-year note due August 15, 2029, a $42 billion 10-year note due August 15, 2036, and a $25 billion 30-year bond due August 15, 2056. (home.treasury.gov) Treasury said the three-year note will be auctioned on August 11, the 10-year on August 12, and the 30-year bond on August 13. ### When is the next checkpoint for this story? The Treasury’s “Most Recent Quarterly Refunding Documents” page says the next quarterly refunding release is scheduled for November 4, 2026. (home.treasury.gov) The same page says the next financing estimates release is scheduled for November 2, 2026, setting the next dates for updated borrowing guidance and a new TBAC package. (home.treasury.gov)