Senator Elizabeth Warren sent a formal letter to Treasury Secretary Scott Bessent demanding answers about what she characterized as unprecedented and chaotic interventions in the US Treasuries market via the buyback program. The buyback program, restarted in 2024 ostensibly to improve liquidity in off-the-run issues, has drawn criticism that it distorts pricing signals and may be used for purposes beyond stated liquidity support. The congressional pressure adds political risk to the program's continuity and scope.
For Armada's traditional repo desk, Treasury buybacks directly affect the relative value and availability of collateral across the curve. If the program is curtailed or restructured under political pressure, off-the-run liquidity premiums could widen, affecting haircut assumptions and collateral substitution options in repo trades with hedge fund and asset manager counterparties.