Rescuing US Treasuries in "Soros Style"! From currency controls to interest rates, can Bessent beat the market?

A man who once helped Soros break the Bank of England is now using similar tactics to defend the U.S. Treasury market?

Since the beginning of this year, U.S. Treasury Secretary Scott Bessent has repeatedly intervened, employing a series of unexpected market operations and staking his own credibility on suppressing U.S. borrowing costs. According to Bloomberg, he has become “the most aggressive Treasury Secretary in decades in terms of market intervention.”

Following the U.S.-Japan joint intervention in the yen, Bessent’s latest move is to expand U.S. Treasury repurchases. The Treasury announced that the scale of buybacks for 10- to 30-year Treasuries would “at least double”—this repurchase plan itself was only unveiled two weeks ago. On the day of the announcement, the 10-year Treasury yield fell by about 6 basis points, the 30-year fell nearly 9 basis points, and the dollar index dropped to a three-month low.

The market’s reaction confirmed Bessent’s judgment: he publicly stated, “My job is to be the nation’s top bond salesman, and Treasury yields are the barometer of success.”

From Pound Sterling Short Seller to Debt Market Gatekeeper

To understand Bessent’s approach, one must go back to 1992.

That year, Bessent, then in his twenties, worked at the Soros Fund and helped build the short position against the British pound. On “Black Wednesday,” the pound was forced out of the European Exchange Rate Mechanism, earning Soros over $1 billion. According to media reports, a former adviser described Bessent at that time as “able to spot market vulnerabilities invisible to others.”

Afterwards, he returned as Chief Investment Officer at Soros, and in 2013 led a $1 billion short on the Japanese yen, reaping substantial returns again. In 2015, he founded Key Square Capital Management with $4.5 billion, successfully betting on both Brexit and Trump’s two election rallies.

This “find the crack and push it further” hunter’s logic has run through his entire hedge fund career.

Now, he is using the same instincts—but to do the exact opposite: defending a market under pressure.

This Year’s Intervention Map: From Yen to Treasuries

Bessent’s maneuvers this year have formed a clear logical chain.

Step one, yen intervention. On July 31, the U.S. Treasury, together with Japanese authorities, entered the market to buy yen—America’s first direct intervention in the yen in nearly three decades. According to the Peterson Institute for International Economics (PIIE), Japan spent about $87 billion of forex reserves in the last two days of July to buy yen, with the U.S. Treasury joining in the final phase, providing a limited funding amount but sending an important political signal. Notably, the Treasury sold euros instead of dollars, and did not notify eurozone authorities in advance.

Behind this lies an invisible thread: Japan holds about $1.1 trillion in U.S. Treasuries, the largest overseas holder. If Japan had to finance intervention alone, it might have been forced to sell Treasuries, further pushing up long-term yields. Washington’s participation allowed Japan to sell fewer U.S. Treasuries, thus indirectly protecting the yield curve Bessent cares most about.

Step two, tightening signals on the issuance side. Early this month, the Treasury signaled it might reduce the issuance size of long-term bonds, sending the market expectations of tighter supply.

Step three, ramping up repurchases. This week, the Treasury announced repurchases of long-term bonds would at least double, directly supporting prices from the demand side.

Bloomberg quotes Christofferson Robb & Co. portfolio manager Brad Golding, saying this is like “old-school ‘clearing the screens’”—a hedge-fund technique where simultaneous orders are given to many large dealers, triggering big market swings.

Former U.S. Treasury official and current OMFIF researcher Mark Sobel told Bloomberg: “He’s absolutely an activist, and it brings to mind his hedge fund background.” “Clearly, he and this administration are concerned about the rise in long-end yields.”

Breaking “Rules and Predictability”

Bessent’s moves are in direct conflict with the Treasury’s traditional principles.

The U.S. Treasury has long followed a rule-based, predictable debt management approach to avoid surprising markets. As recently as last November, Bessent himself publicly endorsed this principle at a Treasury market meeting.

But now, his actions have deviated from that promise.

Gregory Faranello, head of U.S. rates trading and strategy at AmeriVet Securities, told Bloomberg: “This goes against the principle of ‘rule-based and predictable’—but this is the world we’re in.” “The signal is clear: stop yields from rising.”

More ironically, Bessent’s predecessor, Janet Yellen, also suppressed yields in 2023 by tweaking the debt issuance structure—at that time, Bessent was among the critics, accusing the move of being politically motivated. Stephen Miran, Trump’s former chief economist, also jointly authored a paper in 2024 criticizing “Aggressive Treasury Issuance” (ATI).

According to Bloomberg, Miran and Nouriel Roubini wrote in that paper: “Once one party starts using ATI to stimulate the economy in election season, all future administrations may follow suit.”

Skepticism: Can Intervention Solve Structural Problems?

The market responds to Bessent’s maneuvers in the short term, but economists’ doubts are more fundamental.

Up to the first ten months of fiscal year 2026, the federal net interest expense has reached $963 billion, about $3.18 billion a day, up 14% from the previous year. The 10-year Treasury yield stands at 4.72%, the 30-year at 5.31%—a large volume of old debt previously issued at below 2% is now rolling over at much higher rates. The deficit so far in fiscal 2026 is $1.8 trillion, up 5% from last year, with spending increases in Social Security, Medicare, defense, and interest payments; Republicans are also discussing further tax cuts.

Robin Brooks, senior fellow at the Brookings Institution, told Bloomberg bluntly: “This does not address the fundamental issue—cutting debt and shrinking the fiscal deficit. It’s simply trying to manipulate the yield curve.”

BNY macro strategist John Velis also commented: “Given current spending policies and ongoing wars, it will be very difficult to ease long-term pressure.”

The effect of yen intervention is also in doubt. After USD/JPY hit a high of 163.98 on July 23 and fell to 159.43 by August 17, CNBC reports said the intervention had not stopped the yen’s persistent weakening. PIIE’s Maurice Obstfeld said outright that intervention has little effect, adding that “FX intervention is not a free lunch—not even a free piece of cake.”

Zurich Insurance Chief Strategist Guy Miller told Bloomberg: “This approach only works for a while. When the Treasury gives a strong signal of ongoing intervention, it can have a powerful effect temporarily. But ultimately, unless profligate fiscal policy is addressed, it’s not sustainable.”

Peter Boockvar, CIO of Onepoint Bfg, was even more direct: “He’s fighting against two massive markets—Treasuries and FX—at the same time. It’s an extremely tough battle.”

Credibility at Stake

Bessent’s logic is already clear in his own words. When discussing the Trump administration’s holdings in tech and resource companies last month, he said: “What we’re doing is creating market signals.” He told Fox Business: “Essentially, it’s about telling investors, ‘Okay, that’s where the puck is going, skate there quickly.’”

The problem is, in 1992, shorting the pound was about spotting an institutional weakness and striking accordingly. Now, he faces structural pressures driven by fiscal deficits, inflation expectations, and Federal Reserve policies—factors that can’t be fundamentally changed by buybacks or FX intervention alone.

According to Bloomberg, Mark Sobel, who served in the Treasury for nearly 40 years, believes Bessent is arguably the most aggressive Treasury Secretary since the early 2000s. But at the same time, he characterizes the yen intervention as unwise, saying it avoids the real fiscal consolidation the U.S. needs.