30-year Treasury yield 5.33% intraday peak marks reported 19-year high

The 30-year Treasury yield 5.33% mark was reached briefly in trading on Tuesday, August 18, according to CNBC, which described it as a 19-year high. The long-bond yield later retreated, while CNBC’s subsequent market snapshot showed lower yields on the 10-year and two-year notes, underscoring that the reported peak was an intraday move rather than an official closing reading.

CNBC put the 30-year yield at 5.285% in one update, down by more than two basis points on the day. A separate CNBC social-media update listed it at 5.305%. The excerpts do not give timestamps sufficient to reconcile those two live-market quotes. A basis point is one-hundredth of a percentage point, and bond yields rise when bond prices fall.

At CNBC’s later snapshot, the 10-year Treasury yield was 4.706% and the two-year yield was 4.175%. CNBC describes the 10-year note as a key benchmark for household borrowing markets, while shorter-dated yields generally respond more directly to expectations for Federal Reserve policy.

Why did the 30-year Treasury yield rise?

CNBC linked the move to reported concerns over persistent inflation, the US fiscal outlook and higher oil prices amid Middle East tensions. These were market explanations reported at the time, rather than evidence that any one development caused the intraday move.

The reported fiscal backdrop included a $432.3bn US budget deficit in July, the largest monthly total since March 2021. CNBC said the year-to-date shortfall was approaching $1.8tn, national debt was nearing $40tn, and interest costs this year were about $1.2tn.

CNBC also said that overall price increases in June and July had been low, though the annual inflation rate remained well above the Federal Reserve’s 2% target. Oil prices rose after the deadline for a US-Iran peace agreement expired, while Iran ruled out an extension, according to state media cited by CNBC. Jim Reid of Deutsche Bank wrote that investors had priced in a longer potential closure of the Strait of Hormuz as signs of a deal remained limited.

Was 5.33% an official end-of-day Treasury rate?

No official end-of-day observation for August 18 is included in the available Treasury data. The US Treasury Department says its daily par yield curve is constructed from indicative over-the-counter market quotations obtained by the Federal Reserve Bank of New York at about 3:30 p.m. on business days. That closing benchmark is not necessarily the same as a live intraday yield quote. The supplied official series therefore does not independently confirm the reported 5.33% peak.

The rise in long-dated borrowing costs was part of a broader international move, CNBC reported. Japan’s 10-year government-bond yield reached a 30-year high; Germany’s 30-year yield was at its highest since 2011; and France’s 30-year yield reached a post-2008 high. US import prices, meanwhile, fell 0.4% in July, against a Dow Jones survey forecast for a 0.1% increase.

Readers can review CNBC’s market report and the Treasury Department’s methodology for its daily par-yield curve.

This story draws on original reporting from CNBC.