Finance

Government Borrowing Costs Just Hit Their Highest Since 2002

Marcus SterlingPublished 5w ago2 min readBased on 7 sources
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Government Borrowing Costs Just Hit Their Highest Since 2002
source:treasury.gov

The U.S. government had to pay 5.344% to borrow for 10 years during the trading day, the highest level going back to 2002. Think of yield as the rent the government pays to use investors' money. The level was reported on Oct. 2, 2026 by CNBC. Bloomberg reported on Oct. 1 that the U.S. 10-year yield had surged to the highest level since 2002.

The October number followed a climb through late summer. In September, the 10-year yield was around 4.94%, its most elevated level since 2023, according to Bloomberg. Earlier, on Aug. 11, The Wall Street Journal reported the 10-year at 4.735%, the highest since July 31, citing Tradeweb data, alongside a 10-year gilt yield at 5.049%, an 11-day high. A gilt is the U.K. version of the same kind of government loan. The Journal packaged the move under the headline 'Global Bond Yields Climb Due to Inflation Fears.'

For market participants, the reference point is the Daily Treasury PAR Yield Curve Rates published by the U.S. Department of the Treasury. The par curve links the borrowing rate to how many years are left until repayment. The rates are usually available by 6:00 PM Eastern Time each trading day, per the Treasury's methodology note. Intraday market reads, such as Tradeweb prints cited by the Journal and live-session highs, sit alongside that end-of-day official curve. Coverage of the Treasury move included reporting by Emese Bartha for the Journal.

The broader context here is staying power, not one odd reading. Rates moved from the low-4.70s in August through the high-4.90s in September to above 5.30% intraday in early October. That is fast. The U.K. side matters too. High rates in both countries point to shared pressure from term premium, the extra pay for holding longer debt, rather than U.S. supply or noisy data alone.

Looking at what this means for portfolios and funding, the level changes the math for savers and borrowers. Long-term rates set the starting point for valuing future payments and for longer borrowing. At 2002-era yields, convexity and roll, which shape how bond prices react to rate moves and passing time, act differently than in the low-rate years. That does not predict the next move. It defines the risk to be managed.

In my view, plumbing matters at these levels. Intraday highs print on trading systems and data feeds. The official par curve follows at the close. The gap between the two can be wide on shaky days. Professionals will anchor risk and valuation to the published curve while using intraday extremes to read stress around positions and liquidity.

Looking at what this means for inflation pricing, the Journal's framing is instructive without settling the question. A long rate combines what investors expect for real returns and for inflation, meaning rising prices, plus term premium. Blaming the global climb on inflation fears names one driver. It leaves open how much comes from repricing of real term premium and absorbing new supply. That split matters for hedging.