Volatility Intensifies at Both Ends of U.S. Treasury Yields: Treasury Buybacks and CPI Data Emerge as Key Catalysts
nashnova research
After the Labor Day break, two catalysts will drive the U.S. bond market — the Treasury's outsized buyback plan and August CPI data — pulling the yield curve from both ends and shaping the September rate-hike path.
What happened in bonds last week?
August payrolls beat expectations, lifting bets on a September Fed rate hike.
Short-end yields rose while the long end held steady — the curve flattened.
The 30-year yield sat near 5.25%, its highest since 2007.
This means → the market is already pricing in "one more hike," but long-term borrowing costs have not followed.
Why is the Treasury buyback suddenly in focus?
The Treasury announced buyback details for September 10, with execution the next day — outside its regular quarterly window.
The size will be "at least" double the prior $2 billion cap; markets expect three to five times that figure.
In plain terms = the Treasury is buying back its own older bonds; the more it buys, the more cash it injects into the bond market, pushing prices up and yields down.
Tim Musial, head of fixed income at CIBC Private Wealth, called the size "a challenge you can't really predict" and suggested reducing risk exposure.
How will CPI shape the rate decision?
Musial called the jobs report "the appetizer" — "the main course is the September 11 inflation print."
Bloomberg's survey forecasts August CPI at 3.4% year-on-year; core CPI at 2.4%.
Fed Chair Kevin Warsh said at Jackson Hole that "the Fed's top priority right now should be prices."
Rate swaps price a ~60% chance of a 25-basis-point hike this month; the next FOMC meeting is September 16.
Are monetary and fiscal policy in a tug of war?
Monetary policy pushes short-end yields higher (hike → short rates rise); fiscal policy aims to pull long-end borrowing costs down (buyback → long-bond prices supported).
This means → the two ends of the yield curve are pulled by opposing forces — the current flattening is the visible result of that tug of war.
Whether this week's twin catalysts — buyback size and CPI — break the stalemate is the market's key test.
市场有风险，内容仅供研究参考，不构成投资建议。