US long-dated government debt is experiencing its most sustained pressure in nearly two decades. Caught between persistent fiscal deficits, a wave of corporate bond issuance, and rising expectations of Federal Reserve rate hikes, the 30-year Treasury yield has now remained above 5% for a longer continuous period than at any time since 2006, with concerns over long-end rates showing little sign of abating in the near term.

According to Bloomberg data, through Monday, the 30-year Treasury yield has closed above 5% on 55 trading days so far this year — the most in any calendar year since 2006. The yield touched 5.34% in mid-August, its highest level since 2007 and just 10 basis points shy of a 22-year peak. The benchmark yield currently stands at 5.27%.

Treasury Secretary Bessent's announcement last month to expand the buyback program for older securities, aimed at suppressing long-end yields, briefly rattled the market. However, most investors doubt this will be enough to reverse the trend — September is expected to see corporate bond issuance reach $215 billion, following August's record pace. Meanwhile, with no near-term improvement in sight for the US fiscal deficit, the pressure on the Treasury market is set to persist.

After Fed Chair Warsh delivered a hawkish speech at Jackson Hole last week, traders on Monday priced in nearly a 70% probability of a rate hike of roughly 17 basis points at the September 15–16 FOMC meeting. If the Fed holds steady amid stubborn inflation, selling pressure on long-dated bonds is likely to intensify further.

Historic milestone broken as yields stay elevated

Bloomberg data shows the 30-year Treasury yield has closed above 5% on 55 days this year, surpassing all prior years and bringing the market back to the rate environment of 2006. The 5.34% peak reached in mid-August came within striking distance of the highest level in 22 years.

This trajectory reflects deep market concerns over the long-term sustainability of US public finances. John Briggs, head of North America rates strategy at Natixis, said long-end yields will remain elevated "until entitlement spending reform changes the deficit picture," adding bluntly that the Treasury's buyback initiative is "a drop in the bucket."

Treasury buybacks no match for supply flood

In an effort to curb upside moves in long-end yields, Treasury Secretary Bessent last month announced an expansion of the old-bond buyback program, causing a brief stir in the market. Yet analysts broadly view its impact as limited.

September's projected $215 billion in corporate bond issuance, following August's record, will directly offset the Treasury's buyback operations. Priya Misra, portfolio manager at JPMorgan Asset Management, said Treasury buybacks may help support demand for long-end bonds, but "will likely be swamped by the supply flood from AI infrastructure buildout."

"Despite Treasury buybacks and other recent policy measures, investors remain reluctant to add duration exposure," wrote BofA rates strategists Meghan Swiber and Eleanor Xiao in a Monday report. "The shrinking of official-sector buying leaves the market increasingly dependent on price-sensitive private demand to absorb ongoing Treasury supply."

Fed rate hike expectations as a key variable

The September FOMC meeting will be a defining moment for Chair Warsh's hawkish stance. Following his tough-talking speech at Jackson Hole, the market has priced in nearly a 70% probability of a rate hike of around 17 basis points at this month's gathering.

Given that long-dated bonds are more sensitive to inflation expectations, if the Fed chooses to hold steady while inflation remains entrenched, investors will have more reason to shun the 30-year Treasury. "To push down long-end yields, you need to tighten rates," said Gregory Faranello, head of US rates trading and strategy at AmeriVet Securities. He expects the Fed to hike and favors 10-year and shorter-dated maturities.

Friday's August jobs report and the critical September 11 inflation data will provide further clues on the inflation trajectory. Meanwhile, options markets have shown more aggressive bets — on Monday, traders used Treasury options to position for the 30-year yield jumping to roughly 5.7% by the November 20 contract expiry.

Fragile demand structure deepens market divergence

The 30-year Treasury occupies a unique position in the $31 trillion US Treasury market. Its primary buyers are institutional investors such as insurers and pension funds seeking to match long-dated liabilities, while bond fund managers who prefer to control interest rate sensitivity tend to limit long-end exposure. This structural fragility in demand has become increasingly pronounced in the current environment.

After the yield has risen roughly 65 basis points from its year-to-date low, some investors are beginning to question how much further downside remains in long-dated bonds. John Briggs said that after being bearish on the long end all year, he has turned "more neutral" at current levels, noting that "term premium and real yields have come a long way — they don't have to run hot forever."

Priya Misra added, "We may be approaching the peak in long-end yields, but with so many forces at play, uncertainty remains."