Invest1 publisher3 min readPublished
Bond vigilantes have crossed Bessent's red line, and the 10-year is now your planning rate
Steve Hanke says a "deadly cocktail" has pushed Treasury yields through the informal 4.5% and 5% markers Scott Bessent defends, and he expects another 50 basis points on the 10-year.
The Investor · Invest desk
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What happened
- Hanke argued in a Fortune interview that a bond selloff has already pushed yields past the informal threshold Treasury Secretary Scott Bessent has been trying to defend, and that Trump inadvertently mixed a 'deadly cocktail' for Treasuries.
- Hanke said 'the bond vigilantes have come out of hibernation,' referring to investors who sell government debt en masse to punish what they see as reckless fiscal or monetary policy, driving yields higher until policymakers change course.
- Hanke said he expects the 10-year yield could climb another 50 basis points, and that he will be 'very bearish' on bonds 'for quite some time.'
- Bessent has said he wants the 10-year yield to carry a '3 handle,' meaning below 4%.
- Multiple reports describe a widely understood marker around 4.5% on the 10-year and 5% on the 30-year as Bessent's effective red line; Hanke called it a red line and a consensus view, saying 'it's reading the tea leaves' and calling it a 'commonly understood red line, not unique to Hanke.'
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Why it matters
A Treasury selloff has carried yields through the informal ceiling Treasury Secretary Scott Bessent has been defending, and Johns Hopkins economist Steve Hanke told Fortune that "the bond vigilantes have come out of hibernation" [1][2]. That matters to operators for a dull reason: the 10-year is the reference rate under mortgages and other consumer borrowing, so the level Bessent cannot hold is the level next year's financing plan has to clear [11].
Start with the line itself, because it was never published. Bessent has said he wants the 10-year to carry a "3 handle," meaning below 4% [5]. What the market actually watches, according to multiple reports cited by Fortune, is a marker near 4.5% on the 10-year and 5% on the 30-year [6]. That is a gap of at least 50 basis points between the stated preference and the defended floor [2], and Hanke is candid that the threshold is inferred rather than announced: "reading the tea leaves," a "commonly understood red line, not unique to Hanke" [6]. The vigilante label itself dates to a 1983 paper by Ed Yardeni, who wrote that if fiscal and monetary authorities would not regulate the economy, "the bond investors will" [20].
The evidence of official discomfort is dated and concrete. On July 31, the day the 30-year yield hit 5.27% [7], which is 27 basis points through the informal 5% marker [1], the United States joined Japan in a coordinated yen-buying operation, the first joint intervention between the two countries since 1998 [8]. The stated concern was that a falling yen would push Tokyo to sell part of its $1.114 trillion in US Treasuries to defend its currency, driving US yields higher still [9]. Bessent's notepad at a Camp David cabinet meeting visibly listed "Buy Japanese Yen (JPY) $5-10 bil." [10]. Bloomberg reported in early August that Bessent was signaling he wanted to keep yields from spiking, with his focus on the 10-year [11], and Reuters has described the curve moves as exposing "Trump's and Bessent's rate dilemma" [12]. Governments comfortable with their own bond market do not intervene in another country's currency to protect it.
Hanke's mechanism is worth separating from his conclusion. He ranks three forces and puts money first, saying "the first thing is always money" [13], pointing to Divisia M4 growth of 6.7% year over year against his own "Golden Growth Rate" of roughly 6% [14], an overshoot of 0.7 percentage points [4]. His framing is a bathtub: pandemic-era liquidity has largely drained out and the tub is refilling, so "it's going to be a long time until inflation is at 2%," and it is expectations rather than realized inflation that set yields [17][18]. Two caveats belong in the file. Divisia M4 is produced by the Center for Financial Stability, where Hanke is a special counselor [15][16], so the indicator and the analyst are not independent. And the material details only the first of his three ingredients; the other two are ranked, not shown [13]. His wider claim, that the bond market is the only major asset class currently pricing risk correctly [19], is a view, not a measurement.
Hanke expects another 50 basis points on the 10-year and says he will be "very bearish" on bonds "for quite some time" [4]. With yields already past 4.5%, that arithmetic points to a 10-year at or above 5% [3]. The planning number is the market's, not the Treasury's.
Three things to track: whether the 10-year stays above 4.5% and the 30-year above 5% [6], whether renewed yen weakness forces Tokyo into actual Treasury sales [9], and the next Divisia M4 prints, since Hanke's case rests on money growth holding above 6% [14].