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Insights 2 September 2026 ~14 minute read

Regulation U, Regulation X & the Purpose Statement: Pledging US-Listed Shares Cross-Border.

A holder outside the United States, pledging a US-listed position to a lender outside the United States, has to answer the Federal Reserve’s margin rules before the facility can be documented. Whether those rules apply at all turns on two questions that must be settled first: who the borrower is, and what the money is for.

Regulation U (12 CFR Part 221) is the Federal Reserve Board rule governing credit extended by banks and other non-broker lenders where that credit is secured, directly or indirectly, by margin stock — and its central restriction, the maximum loan value ceiling, bites only where that credit is also purpose credit. Regulation X (12 CFR Part 224) is its companion, and it places the equivalent obligation on the borrower rather than on the lender. Between them, they are why a facility secured on a Nasdaq or NYSE position is documented as non-purpose credit and, where the lender is subject to Regulation U or Regulation T and the credit exceeds the de minimis amount set in the regulation, recorded on a purpose statement before it funds.

Every equity listed on the New York Stock Exchange or Nasdaq is margin stock. That single fact is what puts the Board’s margin apparatus on the agenda of a transaction that may otherwise have no American element at all — a holder in Singapore or Dubai, an arranger in Luxembourg or Zurich, a facility documented under English law. It is not, however, what decides the answer. Each of the three regulations keys off who the parties are rather than off the collateral alone, so the listing opens the analysis rather than closing it. The apparatus is old, narrow, and widely misread, and it repays being set out precisely, because the part of it that actually bites is not the famous 50 percent figure but the two facts that determine whether that figure applies at all: the borrower’s status, and the use of proceeds. This is a general explanation of the framework, not legal, tax, or regulatory advice; the position on any specific facility is a matter for the borrower’s own United States counsel.

Three regulations, three subjects

The Board’s margin rules are usually spoken of as one thing. They are three, and what separates them is not what they say but whom they bind.

Regulation T (12 CFR Part 220) applies to brokers and dealers, and governs the credit a broker extends to a customer — the classic margin account. Regulation U (12 CFR Part 221) applies to everyone else who lends: banks, and persons other than brokers or dealers, where the credit is secured directly or indirectly by margin stock. Its loan-value restriction is reserved for credit that is also purpose credit, while its purpose-statement and registration machinery attaches to margin-stock-secured credit whether or not the purpose limb is met. Regulation X (12 CFR Part 224) applies to the borrower, and exists so that the obligations imposed by the first two cannot be dissolved simply by choosing a lender the first two do not reach.

A drafting history explains a piece of vocabulary that otherwise confuses people. Non-bank lenders were once governed by a separate Regulation G; the Board folded Regulation G into Regulation U in 1998, but the forms kept their old designations. That is why a non-bank lender under Regulation U still registers on Form FR G-1 and takes its purpose statement on Form FR G-3, while a bank lender uses Form FR U-1.

Margin stock, and purpose credit

Two definitions in 12 CFR 221.2 carry most of the weight.

Margin stock is defined to include any equity security registered on, or having unlisted trading privileges on, a national securities exchange; any over-the-counter security designated as qualified for trading in the national market system; any debt security convertible into margin stock, or carrying a warrant or right to subscribe to or purchase margin stock; any such warrant or right itself; and shares of most registered investment companies. The NYSE and Nasdaq are both registered national securities exchanges, so a listed line on either is margin stock without further analysis. So, importantly, is a convertible bond issued over that line, and so are warrants a founder may hold alongside the ordinary shares.

Purpose credit is credit extended for the purpose — whether immediate, incidental, or ultimate — of buying or carrying margin stock. The wording is deliberate: the test follows the money to its ultimate application rather than stopping at the first thing it is spent on.

A third definition does quiet damage in cross-border documentation. Credit is indirectly secured by margin stock where the borrower’s right or ability to sell, pledge, or otherwise dispose of margin stock is in any way restricted while the credit is outstanding, subject to express exclusions. A negative pledge, a covenant not to encumber, or a cross-collateral clause can therefore satisfy the security limb of Regulation U on a facility neither party thought was secured at all. That matters for the purpose-statement and registration requirements even where the credit is non-purpose; it matters for the maximum loan value only where the credit is also purpose credit. The exclusions do real work here — among them, arrangements in which margin stock is only a small proportion of the assets caught, and cases in which the lender has in good faith not relied on margin stock as collateral. The security package is read against the definition and against its exclusions at the drafting stage, not after signing.

The maximum loan value rule, and where it stops

The number everyone quotes lives in the Regulation U supplement at 12 CFR 221.7: the maximum loan value of margin stock is 50 percent of its current market value. For collateral that is not margin stock, the maximum loan value is what the lender determines in good faith.

The essential qualification is that the 50 percent ceiling attaches to purpose credit. It is a limit on how much may be advanced to buy or carry margin stock. It is not a general cap on lending against shares. Where the credit is genuinely non-purpose — the proceeds fund a property purchase, a tax liability, a business commitment, diversification, or general liquidity — the maximum loan value rule does not bind, and loan value reverts to an ordinary good-faith credit judgement. The retail-facing version of the same distinction is set out at purpose vs non-purpose loans; this note is the lender-side and cross-border view of it.

That is the whole commercial significance of the distinction, and it is worth stating plainly what it does not mean. A non-purpose facility is not thereby advanced at some higher published ratio. The firm publishes no loan-to-value figure or band, because the ratio is a property of the collateral rather than of the product: free float, average daily volume, volatility, concentration, structure, and currency set it, position by position, as set out in Loan-to-Value Calibration in Stock Loans. What Regulation U determines is whether a regulatory ceiling sits above that calibration at all.

The 50 percent maximum loan value under Regulation U, and the 50 percent initial margin under Regulation T, are stated here as longstanding Federal Reserve requirements. Neither is a rate this firm sets, quotes, or advances against. Rules change and applications vary: the current text of the regulation governs, and the position on any specific facility is a matter for the borrower’s own United States counsel.

The purpose statement: FR U-1, FR G-3, and the G-series

The purpose of the credit is not inferred. It is recorded, in writing, on a purpose statement.

Where the lender is a bank, the form is Form FR U-1, the Statement of Purpose for an Extension of Credit Secured by Margin Stock. Where the lender is a non-bank lender subject to registration under Regulation U, the equivalent is Form FR G-3. The borrower states the purpose of the credit; a duly authorised officer of the lender accepts the statement in good faith — which means being alert to any circumstance that contradicts what the borrower has written — and signs and dates it. The completed statement is retained in the lender’s own records; it is not filed with the Federal Reserve Board.

The G-series is the registration machinery for lenders that are not banks. A non-bank lender extending margin-stock-secured credit above the thresholds set in the regulation registers with the Board on Form FR G-1, files an annual report on Form FR G-4 while it remains registered, and deregisters on Form FR G-2 once it no longer meets them. The thresholds are expressed by amount of such credit extended, and amount outstanding, within a calendar quarter, and the current figures are set out in the regulation itself.

Two operating rules sit alongside the statement. Under the single-credit rule, purpose credit extended to a customer is treated as a single credit for the loan-value calculation, so a facility cannot be sliced into tranches to escape the ceiling. And withdrawals and substitutions of collateral are policed: a lender may permit collateral to be exchanged or released where the credit would still comply after the change, or where the release is matched by a corresponding reduction in the credit.

Regulation X: the obligation that follows the borrower

Regulation T and Regulation U bind lenders within the jurisdictional reach of the United States. A lender wholly outside that reach is, as a general matter, not itself subject to them. That gap is precisely why Regulation X exists.

Regulation X makes the borrower responsible. It applies to a borrower who obtains credit that is subject to Regulation T or Regulation U, and it reaches outward as well: a United States person, or a foreign person controlled by or acting on behalf of or in conjunction with a United States person, who obtains purpose credit outside the United States remains inside the regime. A borrower cannot cure a Regulation U problem by finding a lender in another country.

The reach is not unlimited, and its limit is where the cross-border analysis usually lands. A foreign person who is not controlled by, and is not acting on behalf of or in conjunction with, a United States person, obtaining credit outside the United States, is generally outside that extraterritorial arm. So the operative question in a cross-border file is not where the lender sits. It is the borrower’s own status, and whether the credit is purpose credit at all. Both are settled before the facility is documented, and both are confirmed with United States counsel rather than assumed.

What changes for a holder pledging Nasdaq or NYSE stock

Reduced to what a cross-border borrower actually has to do differently, the regime produces five practical points.

  • i
    The collateral is margin stock wherever the holder is resident. A New York or Nasdaq listing is margin stock as a matter of definition. Nothing about the holder’s residence, the arranger’s domicile, or the governing law of the facility changes that.
  • ii
    The declared use of proceeds is the pivot. Purpose or non-purpose is decided by what the money is for, not by what secures it. A facility raised to diversify, to fund a commitment, or to meet a tax liability is non-purpose; one raised to buy or carry further margin stock is not.
  • iii
    The purpose statement is a closing deliverable. Where one is required (which turns on the lender being subject to Regulation U or Regulation T, and on the credit exceeding the de minimis amount set in the regulation), it is executed alongside the security documents — Form FR U-1 or Form FR G-3, as the lender’s status dictates — and accepted in good faith by an officer of the lender. It is not chased afterwards.
  • iv
    The security package is read for indirect security. Negative pledges and cross-collateral provisions are tested against the indirectly secured definition and its exclusions, because they can satisfy Regulation U’s security limb on a facility neither party thought was secured.
  • v
    The borrower’s status under Regulation X is settled first. Whether the holder is a United States person, or a foreign person controlled by or acting on behalf of or in conjunction with one, determines whether an offshore lender changes anything at all.

The neighbouring regime: Regulation T and FINRA Rule 4210

A holder comparing a negotiated stock loan with a brokerage margin account is comparing two rulebooks. Regulation T sets the initial margin a customer must deposit against margin equity securities at 50 percent of current market value, under its own supplement at 12 CFR 220.12, so the broker may extend credit against no more than the other half. What Regulation T does not set is the maintenance requirement — the level at which the account is called. That comes from self-regulatory organisation rules, principally FINRA Rule 4210, and from the broker’s own house requirements, which may be stricter and which the broker may vary.

The structural consequence is the subject of Stock Loan vs Margin Loan: on a brokerage facility the call level is a rulebook-and-house matter that can move, whereas on a negotiated stock loan the top-up trigger, the cure period, and the close-out level are terms of a contract, as described in Margin Call Mechanics in Institutional Stock Loans. Regulation U imposes no mark-to-market maintenance requirement of its own: its ceiling is tested when the credit is extended, and thereafter when collateral is withdrawn or substituted, so a fall in value does not of itself create a Regulation U deficiency.

The practical position

For a non-United States holder of a Nasdaq or NYSE line borrowing from a non-United States lender, the Federal Reserve’s margin regulations will usually turn out not to apply at all — provided the borrower is not a United States person and is not controlled by, or acting on behalf of or in conjunction with, one, and provided the credit is genuinely non-purpose. Where a Regulation U or Regulation T lender is involved, the purpose statement is what evidences that. Where none is, the equivalent comfort is a contractual non-purpose representation in the facility agreement — a drafting choice rather than a Federal Reserve requirement. The indirectly secured definition is what catches the facilities nobody expected to be caught. And Regulation X is what removes the comfortable assumption that, for every borrower, an offshore lender puts the question beyond reach.

None of this is legal or regulatory advice, and none of it substitutes for a view from United States counsel on the specific facility, the specific borrower, and the specific use of proceeds. What it is meant to do is set the framework out precisely enough that the questions get asked at the structuring stage, where they cost nothing, rather than at closing, where they cost time. That is the same argument this firm makes about disclosure and about custody, and for the same reason: see Why Structuring Beats Pricing in Institutional Stock Loans.

At a glance
Regulations T, U and X Compared

Which rule catches which party.

A comparison of Federal Reserve Regulation T, Regulation U, and Regulation X across whom each binds, where it is codified, what brings a transaction within it, the purpose documentation used, the limit on purpose credit secured by margin stock, and the treatment of non-purpose credit.
Dimension Regulation T Regulation U Regulation X
Whom it binds Brokers and dealers extending credit to a customer. Banks and other lenders that are not brokers or dealers. The borrower.
Codified at 12 CFR Part 220. 12 CFR Part 221. 12 CFR Part 224.
What brings a transaction within it Credit extended by a broker-dealer to a customer, including the margin account. Credit secured directly or indirectly by margin stock; the maximum loan value restriction applies only where that credit is also purpose credit. Obtaining credit subject to Regulation T or Regulation U; and, for a United States person or a foreign person controlled by or acting on behalf of or in conjunction with one, purpose credit obtained outside the United States.
Purpose documentation Form FR T-4, the Statement of Purpose for an Extension of Credit by a Creditor, where the creditor extends credit that is not for purchasing or carrying securities; otherwise the margin agreement and the creditor’s own records. Form FR U-1 for a bank lender; Form FR G-3 for a non-bank lender registered on Form FR G-1. None of its own; the borrower’s declaration is made on the lender’s purpose statement.
Limit on purpose credit secured by margin stock 50 percent initial margin under the supplement at 12 CFR 220.12. Maximum loan value of 50 percent of current market value under the supplement at 12 CFR 221.7. Applies the same limits to the borrower rather than to the lender.
Non-purpose credit Not the operative regime. Outside the maximum loan value rule; loan value is the lender’s good-faith determination. Falls away where the credit is genuinely non-purpose.

A general summary of the Federal Reserve margin regulations, indicative and illustrative only — not legal, tax, or regulatory advice, and not a quote or a representation about any specific transaction. See the disclosures.

Written by

Adrien Fontaine

Principal, Markets & Coverage

Adrien Fontaine covers the firm’s exchange relationships and per-market eligibility across the Americas, Europe, the Middle East, and Asia-Pacific. He advises holders on the regulatory framework, disclosure thresholds, and cross-currency considerations of financing positions on individual exchanges.

Global equity markets · Cross-currency financing · Exchange regulation · Substantial-shareholder disclosure

FAQ
Common Questions

On this topic.

Q · 01 Does Regulation U apply if both the borrower and the lender are outside the United States?
Regulation U (12 CFR Part 221) binds lenders within the jurisdictional reach of the United States, so a lender wholly outside that reach is generally not itself subject to it. That is not the end of the analysis, because Regulation X (12 CFR Part 224) places the corresponding obligation on the borrower and reaches a United States person, or a foreign person controlled by or acting on behalf of or in conjunction with a United States person, who obtains purpose credit outside the United States. The operative questions are therefore the borrower’s own status and whether the credit is purpose credit at all, both of which are settled with United States counsel before the facility is documented.
Q · 02 Is a securities-backed loan purpose credit or non-purpose credit?
Almost always non-purpose. Purpose credit is defined in 12 CFR 221.2 as credit extended for the purpose — immediate, incidental, or ultimate — of buying or carrying margin stock. A stock loan or securities-backed line raised to diversify, to fund a property purchase or a tax liability, to meet a business commitment, or for general liquidity is not credit to buy or carry margin stock, so it is non-purpose. What matters is the declared and actual use of the proceeds, not the fact that shares secure the loan.
Q · 03 What is Form FR U-1, and who completes it?
Form FR U-1 is the Statement of Purpose for an Extension of Credit Secured by Margin Stock, used where the lender is a bank. The borrower states the purpose of the credit and a duly authorised officer of the lender accepts the statement in good faith and signs it. Where the lender is a non-bank lender subject to registration under Regulation U, the equivalent form is FR G-3, and that lender registers with the Federal Reserve Board on Form FR G-1, reports annually on Form FR G-4, and deregisters on Form FR G-2. The purpose statement is retained in the lender’s records rather than filed with the Board.
Q · 04 What counts as margin stock?
Under 12 CFR 221.2, margin stock includes any equity security registered on, or having unlisted trading privileges on, a national securities exchange; any over-the-counter security designated as qualified for trading in the national market system; any debt security convertible into margin stock or carrying a warrant or right to subscribe to or purchase it; any such warrant or right itself; and shares of most registered investment companies. Because the NYSE and Nasdaq are registered national securities exchanges, a listed line on either is margin stock, as is a convertible bond over that line.
Q · 05 Does the 50 percent figure mean a lender can advance half the value of my shares?
No. The 50 percent maximum loan value in the Regulation U supplement at 12 CFR 221.7 is a regulatory ceiling on purpose credit secured by margin stock — credit used to buy or carry margin stock. It is not a statement of what a non-purpose facility will advance. On a non-purpose securities-backed loan the loan-to-value is a calculated output driven by free float, average daily volume, volatility, concentration, the structure of the transaction, and currency, and no figure or band is published for it because it is a property of the collateral rather than of the product.

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