The US Department of the Treasury is roughly doubling the size of its long-dated bond buyback operations, a move that landed just as 30-year yields touched their highest level since 2007.

The move has drawn a public rebuke from billionaire investor Stanley Druckenmiller over whether the government is managing liquidity or managing prices.

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In an August 19 announcement, the Treasury said it would raise the maximum size per operation for buybacks of 10-to-20-year and 20-to-30-year nominal coupon securities from US$2 billion to at least Us$4 billion, effective September 9 through November 4.

The decision around the increase was framed as routine liquidity support, with the Treasury saying the sectors have shown “consistent strong sponsorship from market participants,” evidenced by the “significant volume of high-quality offers Treasury routinely receives in longer-dated buyback operations.”

The department said it would give more detail on future buyback sizes at its November 4 quarterly refunding.

The timing put the announcement under scrutiny. It came immediately after 30-year Treasury yields hit a 19-year high, driven in part by war and oil-market worries, according to Reuters.

Yields dropped initially on the buyback news, then erased those gains within 24 hours, climbing back above where they started before easing again later in the week alongside falling oil prices — a round trip that undercut Treasury’s framing of the move as routine.

That round trip is central to the pushback from Druckenmiller, the hedge fund manager and former George Soros lieutenant, who argued in a Wall Street Journal opinion piece that markets correctly read the buyback expansion as “price management” rather than genuine liquidity management.

He wrote that trading had remained orderly, no dealer balance-sheet seizures, no failed auctions, no forced unwinds, and that nothing in market conditions justified official intervention.

Druckenmiller tied rising yields to deteriorating fundamentals: inflation running between 3 and 4 percent, unemployment at 4.1 percent, a federal deficit near 6 percent of GDP, and national debt above US$40 trillion.

“Every basis point of artificial yield suppression is a subsidy to procrastination,” he wrote. “Governments defending prices against fundamentals always lose.”

He warned that yield-management operations tend to escalate — a technical intervention today becomes a larger policy commitment tomorrow — and pointed to hints from Treasury officials that operations could expand further or draw on the Treasury General Account as evidence the pattern was already starting.

Treasury Secretary Scott Bessent pushed back directly, saying in a video statement, “We haven’t bought a single bond yet,” as markets digested the policy shift.

The debate over the substance of the buyback program was then overtaken, briefly, by a dispute over how Druckenmiller’s critique was written.

Social media users ran the op-ed through AI-detection tools and flagged it…