US 10-year Treasury yield breaches 5% for the first time since 2007, rattling global equity markets as a Federal Reserve rate hike looks near-certain
The yield on the US 10-year Treasury bond breached 5% on Tuesday 15 September 2026 for the first time since 2007, with the rate settling back to approximately 4.99% in Asian trading on Wednesday morning. The move triggered a second consecutive session of declines for the S&P 500, which fell 0.5% overnight, and left MSCI's Asia-Pacific index (excluding Japan) fluctuating near flat. Traders in CME Group's FedWatch tool were pricing an implied 92.4% probability of a 25-basis-point (hundredths of a percentage point) rate hike when the Federal Reserve announces its policy decision later on Wednesday 16 September, up from a 59.4% probability a week earlier. Fed Chair Kevin Warsh is due to hold a press conference following the decision. Brent crude eased slightly to approximately $108 per barrel in Asian trade after rising 2.9% on Tuesday, following reports that crude loadings at Saudi Arabia's Red Sea export hub at Yanbu had been suspended and some cargo deliveries to European customers cancelled. The US dollar index was trading near a two-week high at 99.656. Cryptocurrency markets extended losses after the US Senate voted against advancing comprehensive cryptocurrency legislation backed by President Trump. Bitcoin fell to approximately $75,816, while Ether slipped to around $2,403. The combination of surging bond yields, elevated oil prices, and monetary tightening has produced a risk-off environment across asset classes, with direct consequences for debt issuance costs and equity valuations globally.
Why this matters
A 10-year Treasury yield above 5% is a global benchmark event, not merely a US market data point. It raises the risk-free rate against which all assets are priced, compresses equity valuations, and drives up the cost of long-term debt issuance across both investment-grade and high-yield markets. For London capital markets, higher US yields typically push gilt yields in the same direction, increasing borrowing costs for the UK government and corporate issuers alike. The near-certainty of another Fed hike confirms that the monetary easing cycle anticipated by many market participants earlier in the year has been decisively deferred, which is consequential for the pipeline of IPOs, bond issuances, and refinancings that were predicated on cheaper credit.
On the Ground
Capital markets teams at City firms will be navigating a repricing environment in which clients either delay issuance or accept significantly wider spreads (the additional yield demanded by investors over the risk-free rate). Debt capital markets lawyers working on bond mandates will face pressure to renegotiate pricing mechanics and may see accelerated or postponed launches depending on market windows. On the equity side, the high-yield environment makes IPO pricing harder and reinforces the trend of companies deferring listings that was visible in the London market through the summer. A trainee on a bond issuance in this environment would assist with pricing supplement drafting, comfort letter coordination, and PDMR (person discharging managerial responsibilities) notification letters as pricing is finalised under volatile conditions.
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