Are leveraged buyers of Treasuries reaching their financing limits?
Core argument: Hedge funds stepped in as buyers of cash Treasuries in size after the Federal Reserve and commercial banks stepped away, using the cash-futures basis trade financed through dealer repo, which grew rapidly and then stalled.
The Treasury market may be entering a period of volatility as leveraged investors have stalled in their purchases and the next marginal buyer has not yet arrived. When the Fed and commercial banks stepped away from the Treasury market, hedge funds stepped in and bought cash Treasuries in size as part of a cash futures basis trade. The financing for that trade is sourced through dealer repo, which grew rapidly and then stalled. While dealers themselves have access to virtually unlimited financing from the Fed, the size of their activity is constrained by balance sheet costs. If the leveraged buyers are reaching financing limits, then a new marginal Treasury buyer must emerge to absorb the sizable upcoming issuance.

