The US 30-year Treasury bond has experienced its most challenging period since 2006, with its yield holding above 5% for an extended duration. This sustained high yield, which has been above 5% for 27 days in 2026, including 12 consecutive days as of late July, marks the longest such stretch since 2007. This persistent rise in yields has raised concerns among investors about the growing national debt and persistent inflation.
Several factors are contributing to this upward pressure on long-term bond yields. These include increasing global sovereign debt, a surge in corporate bond issuance by AI hyperscalers, and lingering inflation anxieties, particularly those related to energy costs. The 30-year yield touched approximately 5.3% in August 2026, a level not seen in nearly two decades. Geopolitical tensions, such as the stalled US-Iran peace talks and concerns about the Strait of Hormuz, are also pushing oil prices above $90 a barrel, exacerbating inflation fears.
In response to these rising borrowing costs, US Treasury Secretary Scott Bessent announced on August 19, 2026, an increase in bond buyback operations. The Treasury Department plans to at least double its long-dated buyback cap to support liquidity for securities ranging from 10 to 30 years. This move aims to rein in long-term borrowing costs, which had reached multi-year highs. Analysts like Vasu Menon from OCBC suggest that investors should focus on shorter-duration bonds to manage the risk associated with rising long US bond yields. The bond market's performance is further complicated by recent soft US economic data, leading traders to scale back rate hike expectations, yet the 10-year Treasury note still saw its yield rise to 4.739% and the 30-year bond to 5.327% in mid-August.
