Title 15Commerce and TradeRelease 119-73

§78i Manipulation of security prices

Title 15 › Chapter CHAPTER 2B— - SECURITIES EXCHANGES › § 78i

Last updated Apr 6, 2026|Official source

Summary

Makes it illegal to trick or fool the market for stocks and similar investments. You cannot make trades or place orders just to create a false look of active buying or selling, or to hide that ownership did not really change. You cannot place matching buy and sell orders or a series of trades to push a price up or down to make others buy or sell. You cannot spread false or paid-for information or make knowingly false statements to get people to trade. You also cannot fix or stabilize a price in ways the Securities and Exchange Commission (SEC) bans, or do manipulative short selling. The SEC can make rules about related things like options, security futures, and security-based swaps. Brokers may not guarantee option performance if the SEC forbids it. Anyone who on purpose breaks these rules and causes someone to buy or sell at a harmed price can be sued for damages. Suits must be filed within one year after discovering the problem and no later than three years after the violation. The listed words put, call, straddle, option, or privilege do not include a registered warrant, right, or convertible security.

Full Legal Text

Title 15, §78i

Commerce and Trade — Source: USLM XML via OLRC

(a)It shall be unlawful for any person, directly or indirectly, by the use of the mails or any means or instrumentality of interstate commerce, or of any facility of any national securities exchange, or for any member of a national securities exchange—
(1)For the purpose of creating a false or misleading appearance of active trading in any security other than a government security, or a false or misleading appearance with respect to the market for any such security, (A) to effect any transaction in such security which involves no change in the beneficial ownership thereof, or (B) to enter an order or orders for the purchase of such security with the knowledge that an order or orders of substantially the same size, at substantially the same time, and at substantially the same price, for the sale of any such security, has been or will be entered by or for the same or different parties, or (C) to enter any order or orders for the sale of any such security with the knowledge that an order or orders of substantially the same size, at substantially the same time, and at substantially the same price, for the purchase of such security, has been or will be entered by or for the same or different parties.
(2)To effect, alone or with 1 or more other persons, a series of transactions in any security registered on a national securities exchange, any security not so registered, or in connection with any security-based swap or security-based swap agreement with respect to such security creating actual or apparent active trading in such security, or raising or depressing the price of such security, for the purpose of inducing the purchase or sale of such security by others.
(3)If a dealer, broker, security-based swap dealer, major security-based swap participant, or other person selling or offering for sale or purchasing or offering to purchase the security, a security-based swap, or a security-based swap agreement with respect to such security, to induce the purchase or sale of any security registered on a national securities exchange, any security not so registered, any security-based swap, or any security-based swap agreement with respect to such security by the circulation or dissemination in the ordinary course of business of information to the effect that the price of any such security will or is likely to rise or fall because of market operations of any 1 or more persons conducted for the purpose of raising or depressing the price of such security.
(4)If a dealer, broker, security-based swap dealer, major security-based swap participant, or other person selling or offering for sale or purchasing or offering to purchase the security, a security-based swap, or security-based swap agreement with respect to such security, to make, regarding any security registered on a national securities exchange, any security not so registered, any security-based swap, or any security-based swap agreement with respect to such security, for the purpose of inducing the purchase or sale of such security, such security-based swap, or such security-based swap agreement any statement which was at the time and in the light of the circumstances under which it was made, false or misleading with respect to any material fact, and which that person knew or had reasonable ground to believe was so false or misleading.
(5)For a consideration, received directly or indirectly from a broker, dealer, security-based swap dealer, major security-based swap participant, or other person selling or offering for sale or purchasing or offering to purchase the security, a security-based swap, or security-based swap agreement with respect to such security, to induce the purchase of any security registered on a national securities exchange, any security not so registered, any security-based swap, or any security-based swap agreement with respect to such security by the circulation or dissemination of information to the effect that the price of any such security will or is likely to rise or fall because of the market operations of any 1 or more persons conducted for the purpose of raising or depressing the price of such security.
(6)To effect either alone or with one or more other persons any series of transactions for the purchase and/or sale of any security other than a government security for the purpose of pegging, fixing, or stabilizing the price of such security in contravention of such rules and regulations as the Commission may prescribe as necessary or appropriate in the public interest or for the protection of investors.
(b)It shall be unlawful for any person to effect, in contravention of such rules and regulations as the Commission may prescribe as necessary or appropriate in the public interest or for the protection of investors—
(1)any transaction in connection with any security whereby any party to such transaction acquires—
(A)any put, call, straddle, or other option or privilege of buying the security from or selling the security to another without being bound to do so;
(B)any security futures product on the security; or
(C)any security-based swap involving the security or the issuer of the security;
(2)any transaction in connection with any security with relation to which such person has, directly or indirectly, any interest in any—
(A)such put, call, straddle, option, or privilege;
(B)such security futures product; or
(C)such security-based swap; or
(3)any transaction in any security for the account of any person who such person has reason to believe has, and who actually has, directly or indirectly, any interest in any—
(A)such put, call, straddle, option, or privilege;
(B)such security futures product with relation to such security; or
(C)any security-based swap involving such security or the issuer of such security.
(c)It shall be unlawful for any broker, dealer, or member of a national securities exchange directly or indirectly to endorse or guarantee the performance of any put, call, straddle, option, or privilege in relation to any security other than a government security, in contravention of such rules and regulations as the Commission may prescribe as necessary or appropriate in the public interest or for the protection of investors.
(d)It shall be unlawful for any person, directly or indirectly, by the use of the mails or any means or instrumentality of interstate commerce, or of any facility of any national securities exchange, or for any member of a national securities exchange to effect, alone or with one or more other persons, a manipulative short sale of any security. The Commission shall issue such other rules as are necessary or appropriate to ensure that the appropriate enforcement options and remedies are available for violations of this subsection in the public interest or for the protection of investors.
(e)The terms “put”, “call”, “straddle”, “option”, or “privilege” as used in this section shall not include any registered warrant, right, or convertible security.
(f)Any person who willfully participates in any act or transaction in violation of subsections (a), (b), or (c) of this section, shall be liable to any person who shall purchase or sell any security at a price which was affected by such act or transaction, and the person so injured may sue in law or in equity in any court of competent jurisdiction to recover the damages sustained as a result of any such act or transaction. In any such suit the court may, in its discretion, require an undertaking for the payment of the costs of such suit, and assess reasonable costs, including reasonable attorneys’ fees, against either party litigant. Every person who becomes liable to make any payment under this subsection may recover contribution as in cases of contract from any person who, if joined in the original suit, would have been liable to make the same payment. No action shall be maintained to enforce any liability created under this section, unless brought within one year after the discovery of the facts constituting the violation and within three years after such violation.
(g)The provisions of subsection (a) shall not apply to an exempted security.
(h)(1)Notwithstanding any other provision of law, the Commission shall have the authority to regulate the trading of any put, call, straddle, option, or privilege on any security, certificate of deposit, or group or index of securities (including any interest therein or based on the value thereof), or any put, call, straddle, option, or privilege entered into on a national securities exchange relating to foreign currency (but not, with respect to any of the foregoing, an option on a contract for future delivery other than a security futures product).
(2)Notwithstanding the Commodity Exchange Act [7 U.S.C. 1 et seq.], the Commission shall have the authority to regulate the trading of any security futures product to the extent provided in the securities laws.
(i)It shall be unlawful for any person, by the use of the mails or any means or instrumentality of interstate commerce or of any facility of any national securities exchange, to use or employ any act or practice in connection with the purchase or sale of any equity security in contravention of such rules or regulations as the Commission may adopt, consistent with the public interest, the protection of investors, and the maintenance of fair and orderly markets—
(1)to prescribe means reasonably designed to prevent manipulation of price levels of the equity securities market or a substantial segment thereof; and
(2)to prohibit or constrain, during periods of extraordinary market volatility, any trading practice in connection with the purchase or sale of equity securities that the Commission determines (A) has previously contributed significantly to extraordinary levels of volatility that have threatened the maintenance of fair and orderly markets; and (B) is reasonably certain to engender such levels of volatility if not prohibited or constrained.
(j)The authority of the Commission under this section with respect to security-based swap agreements shall be subject to the restrictions and limitations of section 78c–1(b) of this title.
(j)It shall be unlawful for any person, directly or indirectly, by the use of any means or instrumentality of interstate commerce or of the mails, or of any facility of any national securities exchange, to effect any transaction in, or to induce or attempt to induce the purchase or sale of, any security-based swap, in connection with which such person engages in any fraudulent, deceptive, or manipulative act or practice, makes any fictitious quotation, or engages in any transaction, practice, or course of business which operates as a fraud or deceit upon any person. The Commission shall, for the purposes of this subsection, by rules and regulations define, and prescribe means reasonably designed to prevent, such transactions, acts, practices, and courses of business as are fraudulent, deceptive, or manipulative, and such quotations as are fictitious.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

The Commodity Exchange Act, referred to in subsec. (h)(2), is act Sept. 21, 1922, ch. 369, 42 Stat. 998, which is classified generally to chapter 1 (§ 1 et seq.) of Title 7, Agriculture. For complete classification of this Act to the Code, see section 1 of Title 7 and Tables.

Amendments

2010—Subsec. (a). Pub. L. 111–203, § 929L(1)(A), substituted “other than a government security” for “registered on a national securities exchange” wherever appearing. Subsec. (a)(2) to (5). Pub. L. 111–203, § 762(d)(2)(A), added pars. (2) to (5) and struck out former pars. (2) to (5) which prohibited certain actions in the purchase or sale of a security or a security-based swap agreement, such as making false or misleading statements or creating conditions to raise or depress the price of such security. Subsec. (b). Pub. L. 111–203, § 929L(1)(B), struck out “by use of any facility of a national securities exchange,” after “effect,” in introductory provisions. Subsec. (b)(1) to (3). Pub. L. 111–203, § 763(f), added pars. (1) to (3) and struck out former pars. (1) to (3) which read as follows: “(1) any transaction in connection with any security whereby any party to such transaction acquires (A) any put, call, straddle, or other option or privilege of buying the security from or selling the security to another without being bound to do so; or (B) any security futures product on the security; or “(2) any transaction in connection with any security with relation to which he has, directly or indirectly, any interest in any (A) such put, call, straddle, option, or privilege; or (B) such security futures product; or “(3) any transaction in any security for the account of any person who he has reason to believe has, and who actually has, directly or indirectly, any interest in any (A) such put, call, straddle, option, or privilege; or (B) such security futures product with relation to such security.” Subsec. (c). Pub. L. 111–203, § 929L(1)(C), inserted “broker, dealer, or” after “unlawful for any”. Pub. L. 111–203, § 929L(1)(A), substituted “other than a government security” for “registered on a national securities exchange”. Subsecs. (d) to (i). Pub. L. 111–203, § 929X(b), added subsec. (d) and redesignated former subsecs. (d) to (h) as (e) to (i), respectively. Former subsec. (i), relating to limitation on Commission authority, redesignated (j). Subsec. (j). Pub. L. 111–203, § 929X(b)(1), redesignated subsec. (i), relating to limitation on Commission authority, as (j). Pub. L. 111–203, § 763(g), added subsec. (j) relating to

Regulations

relating to security-based swaps. Pub. L. 111–203, § 762(d)(2)(B), which directed amendment of subsec. (i) by striking out “(as defined in section 206B of the Gramm-Leach-Bliley Act)”, was executed by making the strike out after “security-based swap agreements” in subsec. (j) relating to limitation on Commission authority, to reflect the probable intent of Congress and the redesignation of subsec. (i) as (j) by Pub. L. 111–203, § 929X(b)(1). See above and

Effective Date

of 2010 Amendment notes below. 2000—Subsec. (a)(2) to (5). Pub. L. 106–554, § 1(a)(5) [title III, § 303(b)], amended pars. (2) to (5) generally. Prior to amendment, pars. (2) to (5) read as follows: “(2) To effect, alone or with one or more other persons, a series of transactions in any security registered on a national securities exchange creating actual or apparent active trading in such security or raising or depressing the price of such security, for the purpose of inducing the purchase or sale of such security by others. “(3) If a dealer or broker, or other person selling or offering for sale or purchasing or offering to purchase the security, to induce the purchase or sale of any security registered on a national securities exchange by the circulation or dissemination in the ordinary course of business of information to the effect that the price of any such security will or is likely to rise or fall because of market operations of any one or more persons conducted for the purpose of raising or depressing the prices of such security. “(4) If a dealer or broker, or other person selling or offering for sale or purchasing or offering to purchase the security, to make, regarding any security registered on a national securities exchange, for the purpose of inducing the purchase or sale of such security, any statement which was at the time and in the light of the circumstances under which it was made, false or misleading with respect to any material fact, and which he knew or had reasonable ground to believe was so false or misleading. “(5) For a consideration, received directly or indirectly from a dealer or broker, or other person selling or offering for sale or purchasing or offering to purchase the security, to induce the purchase or sale of any security registered on a national securities exchange by the circulation or dissemination of information to the effect that the price of any such security will or is likely to rise or fall because of the market operations of any one or more persons conducted for the purpose of raising or depressing the price of such security.” Subsec. (b)(1). Pub. L. 106–554, § 1(a)(5) [title II, § 205(a)(1)(A)], inserted “(A)” after “acquires” and substituted “; or (B) any security futures product on the security; or” for “; or”. Subsec. (b)(2). Pub. L. 106–554, § 1(a)(5) [title II, § 205(a)(1)(B)], inserted “(A)” after “interest in any” and substituted “; or (B) such security futures product; or” for “; or”. Subsec. (b)(3). Pub. L. 106–554, § 1(a)(5) [title II, § 205(a)(1)(C)], inserted “(A)” after “interest in any” and “; or (B) such security futures product” after “privilege”. Subsec. (g). Pub. L. 106–554, § 1(a)(5) [title II, § 205(a)(2)], designated existing provisions as par. (1), inserted “other than a security futures product” after “future delivery”, and added par. (2). Subsec. (i). Pub. L. 106–554, § 1(a)(5) [title III, § 303(c)], added subsec. (i). 1990—Subsec. (h). Pub. L. 101–432 added subsec. (h). 1982—Subsec. (f). Pub. L. 97–303, § 3(1), substituted “The provisions of subsection (a) shall not apply” for “The provisions of this section shall not apply”. Subsec. (g). Pub. L. 97–303, § 3(2), added subsec. (g).

Statutory Notes and Related Subsidiaries

Effective Date

of 2010 AmendmentAmendment by section 929L(1) and 929X(b) of Pub. L. 111–203 effective 1 day after July 21, 2010, except as otherwise provided, see section 4 of Pub. L. 111–203, set out as an

Effective Date

note under section 5301 Title 12, Banks and Banking. Amendment by section 762(d)(2) and 763(f), (g) of Pub. L. 111–203 effective on the later of 360 days after July 21, 2010, or, to the extent a provision of subtitle B (§§ 761–774) of title VII of Pub. L. 111–203 requires a rulemaking, not less than 60 days after publication of the final rule or regulation implementing such provision of subtitle B, see section 774 of Pub. L. 111–203, set out as a note under section 77b of this title.

Executive Documents

Transfer of Functions

For

Transfer of Functions

of Securities and Exchange Commission, with certain exceptions, to Chairman of such Commission, see Reorg. Plan No. 10 of 1950, §§ 1, 2, eff. May 24, 1950, 15 F.R. 3175, 64 Stat. 1265, set out under section 78d of this title.

Reference

Citations & Metadata

Citation

15 U.S.C. § 78i

Title 15Commerce and Trade

Last Updated

Apr 6, 2026

Release point: 119-73