Following a deal between the United States and Iran to end the ongoing conflict, US Treasury yields fell as investors anticipated lower oil prices. the agreement to reopen the Strait of Hormuz has significantly shifted market expectations regarding the Federal Reserve's next interest-rate moves.

The 4% Brent crude drop and the Treasury rally

The sudden drop in Brent crude by approximately 4% has acted as a primary catalyst for the recent surge in Treasury prices. As the report indicates, the optimism surrounding the reopening of the Strait of Hormuz—a corridor facilitating roughly 20% of the world's oil supply—has directly impacted investor sentiment. This optimism has driven yields down across the curve, with the 30-year bond reaching its lowest level since May 7 at 4.92%.

Treasury two-year yields fell five basis points to 4.03%, while benchmark 10-year notes dropped to 4.43%. The stakes for these movements extend far beyond the $31 trillion Treasury market, as US bonds serve as the global benchmark for borrowing costs. Tomo Kinoshita, a global market strategist at Invesco Asset Management Japan Ltd, noted that historical postwar correlations suggest a 10% decline in oil prices could trigger an approximate 13-basis point drop in US 10-year Treasury yields.

Recalibrating the Fed's December hike probability

With the Federal Reserve scheduled to announce its next policy decision this Wednesday, the geopolitical shift has fundamentally altered the math for interest rate hikes.. Swaps traders have already adjusted their outlooks, pricing in a 60% chance of a quarter-point hike by December, a notable decrease from the 80% probability recorded on Friday. This shift comes as the central bank, under new Chairman Kevin Warsh, weighs the impact of energy-price volatility on the broader economy.

Economists currently expect the benchmark rate to remain within the 3.5% to 3.75% range while the Fed observes how the energy-price shock ripples through the market.. The reduction in rate-hike expectations reflects a growing belief that the energy-driven inflation spike may be cooling following the announcement of the Iran deal.

Yield declines from Sydney to Tokyo

The relief felt in US bond markets has rippled across the Pacific, leading to a broad rally in Asian debt markets. According to the report, 10-year Australian notes saw yields retreat four basis points to 4.78%, while New Zealand debt experienced a seven-basis point slide to 4.40%. In Japan, the benchmark 10-year bond yield dropped 5.5 basis points to 2.58%.

Matthew Haupt, a hedge fund manager at Wilson Asset Management in Sydney, suggested that these movements allow central banks to adopt a less hawkish stance as they monitor short-term inflation trends. this global shift in sentiment highlights how interconnected the US Treasury market is with international borrowing costs and emerging-market assets.

The nuclear program impasse and Israel's 'wild-card' role

Despite the market rally, significant diplomatic and military uncertainties remain regarding the implementation of the Iran deal. While the Strait of Hormuz is expected to reopen this Friday, the report highlights that the United States and Iran are already interpreting the agreement through different lenses, particularly concerning Iran's nuclear program. This divergence suggests that reaching a final agreement on outstanding issues may prove difficult.

The period leading up to the Friday reopening remains a time of potential volatility. Andrew Ticehurst, a strategist at Nomura Holdings Inc. in Sydney, warned that the situation remains precarious, noting that "what Israel does in the interim could be a wild-card too."