Stanley Druckenmiller, one of the most respected macro investors alive, just publicly torched a bond market strategy designed by his own former protégé. In a Wall Street Journal op-ed published on August 24, Druckenmiller called Treasury Secretary Scott Bessent’s plan to double the size of long-dated bond buybacks “a mistake far larger than $4 billion suggests.”

The target of his ire: a Treasury announcement on August 19 expanding buyback operations from $2 billion to a minimum of $4 billion per operation, focused on bonds with maturities ranging from 10 to 30 years. The expanded program runs from September 9 through November 4.

The mentor-mentee split

What makes this dispute particularly sharp is the personal history behind it. Bessent worked under Druckenmiller at Soros Fund Management starting in 1991. For decades, they shared roughly the same macro playbook. Now they’re on opposite sides of one of the most consequential fiscal debates in years.

Druckenmiller’s core argument is straightforward. The 30-year Treasury yield had just hit a 19-year high before the buyback announcement dropped. In his view, that rising yield isn’t a bug. It’s a feature.