The Margin Debt Manual

Research note. Every figure on this page is computed at render from FINRA's margin statistics as we maintain them (monthly, 1997–present, latest report June 2026) — the same file that powers the live margin debt page. Methods in How we checked it; editorial standards in How we use AI.

What is margin debt?

Money borrowed against brokerage accounts to hold securities. When an investor buys stock in a margin account and doesn't pay full cash, the broker lends the difference; FINRA collects those debit balances from every member firm and publishes one monthly total. That total stood at $1.50T in the June 2026 report — up 49% from a year earlier. One boundary to keep in mind from the start: this is brokerage margin only. Securities-backed loans at banks, futures leverage, and the borrowing inside options positions never appear here, so the true amount of money riding on stock prices is larger than any number on this page.

How the number is built

FINRA aggregates three balances from member firms each month: debit balances in margin accounts (the headline "margin debt"), free credit balances in cash accounts, and free credit balances in margin accounts — the last two being money sitting uninvested. The report lands roughly five to seven weeks after the month it covers, which matters more than it sounds: whatever the current print says, the borrowing it describes happened almost two months ago. We date every point by when it was published, not the month it covers, and our Bubble Tracker applies the same lag before letting margin data vote. The series in this form starts in January 1997; FINRA's predecessor series from the NYSE covers earlier decades, and the Fed's Z.1 accounts reach back further still on a quarterly basis. The predecessor series are related but built differently, which is why our chart stops at 1997 instead of splicing quietly.

How to read it — never as a raw level

Margin debt sets all-time highs constantly, for the same reason the market does — both grow with prices and with the economy. A record level, on its own, is a headline and not a finding. The readings that carry information are relative, and the live page charts all three: the level divided by SPY (is borrowing outrunning the thing it finances?), the level as a share of M2 (is it outrunning the money supply?), and what we call excess leverage — the year-over-year growth of margin debt minus the year-over-year return of SPY. That last one is the speed camera. Right now it reads +28.1 points — the 96th percentile of the full history. Borrowing is growing much faster than the market it's buying.

There's a fourth read most coverage skips: net free credit, the cash sitting in accounts minus the debt borrowed against them. Investors currently hold $0.44T of free credit against $1.50T of margin debt — a net position of −$1.06T, the most stretched this measure has ever been in the 1997+ record. When the cushion is thin and prices fall, margin calls sell into weakness — that's the mechanism people actually worry about when they worry about this series.

What happened at past margin debt peaks?

Three episodes dominate the modern history, and they teach two different lessons. Here is each one from our data — the peak, the market top near it, and where the debt went afterward.

Lesson one: the peak itself warned nobody. Margin debt topped the same month as the market in 2000 and within three months of it in 2007 and 2021 — by the time you could see the peak in a report published weeks later, the top was behind you. Lesson two: the surge was different. Year-over-year growth above today's 49% has appeared in exactly 15 months of the 342 on record, and they sort into four clusters: the run-ups to those three peaks — and the spring of 2026. Growth that fast has never yet ended quietly. Small samples deserve suspicion, ours included; three prior episodes are a pattern, not a law.

Where this gauge will mislead you

• The lag. Each print describes borrowing from roughly two months ago. Anyone claiming margin data "called" a move that happened inside that window is reading a report that didn't exist yet.
• Peaks are coincident, not leading. The table above is the evidence. This series confirms tops in hindsight; it does not schedule them.
• You can't see who is borrowing. One total blends retail accounts, hedge funds and family offices. The 2021 Archegos losses sat outside this series entirely — prime-broker swap leverage never touches FINRA's number.
• Denominators are a choice. Debt-to-SPY and debt-to-M2 tell different stories in different eras, which is why the live page shows both rather than picking the scarier one.

How we checked it

The series is FINRA's monthly margin statistics as we maintain them, 1997 to the latest report, dated by publication rather than reference month. Peaks and troughs in the episode table are the highest and lowest monthly readings inside each window; "peak YoY" is the fastest year-over-year growth in the episode's run-up; the market-top dates are the S&P 500's closing highs of each cycle. Percentiles rank the latest value against every month in the history. Everything recomputes when a new report lands, so the numbers in this Manual always match the live page.

Frequently asked questions