Treasury Yields Climb as Bond Selling Risks Intensifying

US government bond markets are facing mounting pressure as Treasury yields climb to levels last seen more than two decades ago, with investors increasingly concerned that continued selling could accelerate the increase. According to Reuters reporting published October 9, 2026, rising hedging costs, heightened volatility, and corporate borrowing linked to artificial intelligence infrastructure are adding to market stress.

The 10-year US Treasury yield has risen approximately 135 basis points since the war with Iran began in February, reaching 5.23%. The 30-year yield has climbed around 110 basis points from its March low to 5.614%, according to Reuters.

Investors are monitoring whether the selloff could generate additional selling pressure, creating a cycle that pushes yields higher. However, Reuters noted that some investors may begin buying bonds to secure yields that have become more attractive than at any point since George W. Bush was president.

"People in the market are recalibrating their expectations," said Dustin Reid, fixed income strategist at Mackenzie Investments.

One warning sign is growing demand for options that protect investors against rising interest rates, a market trend known as payer skew. These instruments allow investors to hedge against sharp yield increases without selling their existing Treasury holdings.

According to Reuters, the cost of protection against a 200-basis-point increase in 10-year US swap rates over the following three months reached 132 basis points on Monday. That was the highest level since the March 2023 banking crisis, which followed the collapse of Silicon Valley Bank.

Swap rates represent the cost of securing a fixed interest rate instead of paying a floating rate. Although the options are linked to swap rates rather than Treasury yields, the two typically move together, making increased demand for protection an indicator of concern about higher long-term borrowing costs.

Market volatility is also increasing. Reuters reported that implied volatility for one-month options on 10-year swap rates rose to 21.4 basis points, its highest level since late March. Implied volatility is a key component of options pricing and reflects uncertainty about future rate movements.

Another source of pressure is the expansion of corporate bond issuance to finance artificial intelligence infrastructure. Investors cited by Reuters identified borrowing by companies building large-scale AI computing capacity as a significant contributor to the recent bond market selloff.

Credit spreads have remained tight, but buyers of longer-term bonds issued by major AI infrastructure operators are using the Treasury market to hedge duration risk. Duration measures how sensitive a bond's price is to changes in interest rates.

According to Reuters, this hedging activity has recently contributed to Treasury selling, adding another source of pressure to a market already adjusting to higher yields and growing uncertainty.