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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
All Titles
Title 17
Chapter I
Part 41
Subpart B - Subpart B—Narrow-Based Security Indexes
§ 41.11 - Method for determining market capitalization and dollar value of average daily trading volume; application of the definition of narrow-based security index.
§ 41.12 - Indexes underlying futures contracts trading for fewer than 30 days.
§ 41.13 - Futures contracts on security indexes trading on or subject to the rules of a foreign board of trade.
§ 41.14 - Transition period for indexes that cease being narrow-based security indexes.
§ 41.15 - Exclusion from definition of narrow-based security index for indexes composed of debt securities.
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