Manipulative, Deceptive or Fraudulent Devices

Beyond the specific manipulation schemes and insider trading, securities law contains broad anti-fraud provisions that prohibit any form of deception in securities transactions.


What You'll Learn

  • The three categories of prohibited conduct under SEC Rule 10b-5
  • How FINRA Rule 2020 mirrors 10b-5 for FINRA member firms
  • OTC-specific anti-fraud rules (15c1-2 and 15c1-3)
  • The difference between material misstatements, omissions, and fraudulent conduct

The Broad Anti-Fraud Rules

SEC Rule 10b-5

SEC Rule 10b-5 broadly prohibits three categories of conduct in connection with the purchase or sale of any security:

  1. Making any untrue statement of a material fact; lying about something important
  2. Omitting a material fact that makes other statements misleading; leaving out information that changes the meaning of what you said
  3. Engaging in any act, practice, or course of business that operates as a fraud upon any person; any scheme or conduct designed to deceive

Think of it this way: Rule 10b-5 is the catch-all anti-fraud rule. It covers lying, hiding the truth, and any scheme designed to deceive. If someone got hurt in a securities transaction through deception, 10b-5 probably applies.

FINRA Rule 2020

  • Mirrors SEC Rule 10b-5 for FINRA members specifically
  • Prohibits the use of manipulative, deceptive, or other fraudulent devices
  • Applies to all communications and conduct by FINRA member firms and their associated persons

Exam Tip: Gotchas

FINRA Rule 2020 and SEC Rule 10b-5 overlap significantly. The correct answer depends on context: if the question focuses on a FINRA member, the answer is Rule 2020. If it asks about securities fraud generally, the answer is Rule 10b-5.

OTC-Specific Rules

RuleWhat It Covers
SEC Rule 15c1-2Prohibits fraudulent conduct in over-the-counter (OTC) transactions
SEC Rule 15c1-3Prohibits non-member broker-dealers from making fraudulent representations

Exam Tip: Gotchas

Rule 10b-5 applies to ALL securities (exchange-listed AND over-the-counter), while Rules 15c1-2 and 15c1-3 apply only to OTC transactions. If the question does not specify OTC, Rule 10b-5 is the safer answer.

Key Concepts

  • Material misstatement: Telling a customer that a bond is "risk-free" when it carries credit risk
  • Material omission: Recommending a stock without disclosing that you own shares personally (conflict of interest)
  • Fraudulent course of business: Operating a Ponzi scheme or systematic overcharging of commissions

Exam Tip: Gotchas

  • Rule 10b-5 covers OMISSIONS as well as affirmative misstatements. A broker who stays silent about a material fact can be just as liable as one who actively lies. The test is whether the omission makes other statements misleading.
  • An omission is only a violation if it makes other statements misleading. Simply not volunteering information is not always a violation.