The List of Foreign Margin Stocks consists of foreign equity securities that have met the eligibility criteria of the Board of Governors of the Federal Reserve System under its Regulation T, section 220.11, and are thus eligible for margin treatment at brokers and dealers on the same basis as domestic margin securities. Other foreign stocks are also eligible if they have a "ready market" under the Securities and Exchange Commission's net capital rule, 15c3-1 (17 CFR 240.15c3-1), or if the agency has issued a "no action" position under that rule.

In 1993, the SEC issued a no-action letter that permits brokers and dealers to treat all foreign stocks in what is now known as the FTSE World Index Series as having a ready market; therefore, all stocks in the FTSE World Index Series qualify for margin treatment.

A 2012 no-action letter from the SEC expanding the number of foreign equity securities deemed to have a ready market under their net capital rule was withdrawn and replaced with a new letter in 2016. Stocks that meet the requirements of this letter (PDF) are eligible for margin treatment at brokers and dealers on the same basis as stocks in the FTSE World Index Series. The Options Clearing Corporation publishes a list composed of many of the stocks that meet the criteria in the SEC's 2016 no-action letter. The list is published daily on the Options Clearing Corporation's website and is available by going to http://www.optionsclearing.com/risk-management/rbh/documentation.jsp and selecting "FMS Translation Report."