In its November 2 borrowing estimates, the U.S. Treasury projected privately held net marketable borrowing — the cash it must raise from investors through bills, notes, and bonds — of $618 billion for October–December 2026 and $800 billion for January–March 2027. The first-quarter figure already includes a $150 billion rebuild of the government's cash balance. Details of the quarterly refunding, the announcement where Treasury sets the sizes and mix of its upcoming debt auctions, are due on November 4 at 13:30 UTC. These flows matter beyond bond desks because they ripple through bank reserves and overnight funding costs — the plumbing under leveraged positions in every market, Bitcoin included.

Six Months of Borrowing, Almost No Net Change in Cash

The fourth-quarter estimate comes in $10 billion below the projection Treasury issued in August, but the reduction is largely mechanical: October began with $34 billion more cash than previously assumed — $984 billion rather than $950 billion. Once that head start is removed, Treasury says the underlying funding requirement is $24 billion higher, mainly because it now expects weaker net cash flows.

The cash targets tell a sharper story than the borrowing totals. Treasury aims to hold $850 billion at the end of December and $1 trillion at the end of March, meaning the first-quarter estimate already embeds a $150 billion rebuild of its balance. For scale, Treasury borrowed $577 billion in the same quarter of 2026.

Set the March target against September's closing balance, however, and the account ends the six-month period just $16 billion higher. Across the full half-year, Treasury is not draining liquidity from the system. It is moving cash out of its account first and pulling it back later, so the question for funding markets is one of timing: how much still has to leave, and what absorbs the money when it returns.

Most of the Year-End Drawdown Is Still Ahead

The quarter's endpoints imply a $134 billion decline, from $984 billion to $850 billion. The account has taken a different route. The Fed's weekly balance-sheet release showed the Treasury General Account (TGA) — the government's account at the Federal Reserve — at $1,016 billion on October 28, above where the quarter began. Treasury's August refunding statement had anticipated a late-October peak of about $1.05 trillion, give or take $50 billion, to cover large payments falling due around that time.

Measured from that reading, reaching the year-end target means roughly $166 billion more leaving the account, about $32 billion more than the quarterly endpoints imply. That figure is a gap between one Wednesday's balance and a target, not a payment schedule. Early-month benefit payments pull the balance down, while mid-December corporate tax receipts push it back up.

Where the money lands is the reason to track it. When Treasury pays a contractor or a retiree, the cash leaves the TGA and arrives at the recipient's bank as reserves — the balances banks hold at the Fed. Tax receipts and debt sales move it in the other direction. The week to October 28 showed that reverse flow almost dollar for dollar: the TGA rose $70 billion and bank reserves fell $74 billion.

The Buffers That Once Softened TGA Swings Are Gone

A Federal Reserve staff note sets out four items on the Fed's balance sheet that can give way when the TGA moves: bank reserves, the overnight reverse repo (ON RRP) facility where money funds park cash overnight at the Fed, the Fed's own securities holdings, and Fed lending. When ON RRP balances were large, the note explains, the facility acted as the shock absorber that kept reserves steady.

Where the four absorbers stood on October 28:

Sources: Federal Reserve H.4.1 (Wednesday levels; reverse repo excludes foreign official accounts); New York Fed purchase schedule.

With the reverse-repo balance close to zero, money funds have almost no idle cash to move into newly issued Treasury bills. A bill-heavy rebuild in the first quarter would therefore draw on cash that currently funds repo lending and, behind it, bank reserves. The Fed's research on repo markets describes both channels.

The Fed's securities lever is switched off for now. The New York Fed's purchase schedule shows reserve-management purchases running at $40 billion a month from December 2025, cut to $25 billion in April and $10 billion in May, and halted since mid-August. Reinvesting maturing mortgage-bond principal into bills — which the Desk continues to do — keeps the portfolio flat rather than adding reserves. The Standing Repo Facility lends cash against Treasuries at a preset rate, so firms turn to it mainly when private repo rates climb toward that level.

The same Fed note recalls September 2019, when a rise in the TGA after a period of balance-sheet runoff, among other factors, left reserves scarce and disrupted repo markets — pushing overnight funding costs sharply higher — until the Fed stepped in with open market operations. Conditions today differ, but a first-quarter rebuild would run through the same mechanism.

Why the Squeeze Case May Be Overstated

The strongest objection is scale. A drawdown of $166 billion equals less than 6% of the reserves banks held on October 28, and reserves were about $67 billion higher than a year earlier. Over that year, the Fed also added roughly $376 billion of Treasury bills to its portfolio through reserve-management purchases and reinvested mortgage-bond principal, so the system enters the rebuild with a cushion it lacked before the program began.

Funding markets have stayed calm so far. The Secured Overnight Financing Rate (SOFR), the benchmark for overnight Treasury repo, held between 3.93% and 3.95% in the last week of October, according to St. Louis Fed data. The year-end leg also runs in the supportive direction, since cash leaving the TGA adds to reserves. And the New York Fed states that its purchase amounts are not on a preset course, which leaves room to restart them before March.

Treasury's expanded long-bond buybacks do not change this arithmetic, because replacement issuance finances them and net borrowing stays largely the same.

What Would Confirm a Supportive Backdrop for Bitcoin

Treasury cash flows reach Bitcoin, if at all, through funding conditions. Cheaper and steadier overnight money lowers the cost of carrying leveraged positions across markets, crypto included, and tighter money raises it. Rising reserves do not show anyone buying Bitcoin, so each funding signal needs a crypto-specific counterpart.

Wednesday's refunding announcement comes first. A larger share of bills would push more of the first-quarter rebuild onto money funds and, through them, onto repo. Heavier coupon issuance would instead add to dealers' financing needs.

Around November 13, the New York Fed publishes its next monthly purchase schedule. Restarting reserve-management purchases would directly offset part of the March rebuild; another zero would leave reserves to absorb it alone.

Through December, the Thursday H.4.1 releases would show reserves rising as the TGA falls toward $850 billion if the drawdown is reaching banks. Flat or falling reserves during the drawdown, or SOFR pressing higher around the November and December month-ends, would mean the cash is not easing funding conditions.

On the crypto side, the test is several consecutive weeks of net inflows into U.S. spot Bitcoin ETFs — a publicly reported demand signal — during the drawdown window. Easier funding without those inflows would suggest the liquidity is going elsewhere.

The rebuild starts in January. If the Fed's schedule still shows no reserve-management buying by then, the $150 billion Treasury plans to pull back by March would come almost entirely out of bank reserves.