Treasury’s cash balance nears $1 trillion while Bitcoin awaits a crucial market signal

At a New York Fed conference on Sept. 22, Treasury officials and market participants discussed whether the government should lend excess cash into the overnight repo market, which finances Treasury trades. Such a move could raise bank reserves. Treasury announced no repo-lending program, amount or timetable at the conference, and any benefit for Bitcoin would be indirect.

Reuters reported that several private-sector panelists welcomed the idea. The Treasury Borrowing Advisory Committee had considered it in May and urged further study. For now, the discussion is about how Treasury might manage its cash, rather than an operating program.

How a Treasury repo investment would work

The Treasury General Account, or TGA, holds government operating cash at the Federal Reserve. In a May presentation, the advisory committee modeled what would happen if Treasury lent some of that cash overnight against Treasury securities. Money would leave the TGA, while bank reserves, the balances banks hold at the Fed, would rise. Treasury would earn a repo rate, and the Fed would pay interest on the additional reserves.

The two public institutions have to be considered together. Treasury's interest earnings alone would not be the full government benefit, because additional reserves also bring an interest cost at the Fed. The economic result depends on the repo rate Treasury earns compared with the rate the Fed pays on reserves, after costs. The modeled transaction is Treasury cash lending, not Federal Reserve bond buying.

The size of the TGA is therefore a poor shortcut for the size of any possible operation. Treasury's August cash plan assumed a $950 billion balance at the end of September and said the account could reach about $1.05 trillion, plus or minus $50 billion, in late October. Those figures are cash-balance plans around government payment needs. Treasury did not present either as money earmarked for repo lending.

The committee's May report also tempered the economic case. A presenting member estimated that, with ample bank reserves, investing excess cash might produce only 0 to 2 basis points of economic return for the government on a consolidated basis. The committee saw likely benefits as marginal against the challenges of setting up a program and recommended more design work. That small, regime-dependent estimate is not a promised return.

Current funding conditions matter as much as the accounting. In remarks at the conference, Roberto Perli, who manages the Fed's System Open Market Account, said overnight money-market rates had averaged slightly below the rate paid on reserves. That suggested reserves were in the higher part of the Fed's ample range. He also said roughly $400 billion of net Treasury bill issuance in the weeks leading up to the Desk's August purchase decision put only very modest upward pressure on repo rates.

Perli's observations do not predict the effect of a Treasury lending program. They show that money markets had absorbed a large recent supply of bills without signs of acute repo funding pressure. Whether Treasury cash would meaningfully lower borrowing costs would depend on the amount offered, the timing and how repo rates responded.

What Bitcoin would need to see

If Treasury adopted the proposal and its lending materially eased short-term financing, that could eventually improve conditions for risk-taking. Bitcoin is several steps removed from the initial transaction, however: higher bank reserves do not by themselves establish cheaper funding, fresh Bitcoin demand or a price effect. None of the cited Treasury or Fed work measures such an effect.

The practical test would begin with a Treasury decision and operating terms, then move to actual lending volumes and observable changes in repo rates and reserves. Until then, a discussion about where Treasury holds and lends its cash is not evidence of a trillion-dollar Bitcoin stimulus.

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