If at first you (US Treasury) don't succeed, try, try again

Long end Treasuries are rallying after the US Treasury is taking another step to stem the rise in long rates. “The U.S. Department of the Treasury is increasing, by at least double, the size of liquidity support buyback operations for longer-dated nominal coupon securities (the 10-year to 20-year sector and the 20-year to 30-year sector). The current maximum size of $2 billion per operation will be at least $4 billion per operation.”

“This increase in buyback operation sizes reflects Treasury’s desire to provide greater liquidity support in longer-dated nominal sectors where there is consistent strong sponsorship from market participants, as evidenced by the significant volume of high-quality offers Treasury routinely receives in longer-dated buyback operations.”