2026 Securities Licensing Study Guides (SIE, Series 7 & Series 66) are now live
Trading & AccountsSection 36 min read

3.9 Prohibited Market Manipulation

FINRA strictly prohibits deceitful practices that compromise market integrity and harm customer trust.

Key FINRA Exam Takeaways

  • Market Manipulation: Artificially inflating, depressing, or influencing security prices or trading volume.
  • Painting the Tape: Collusive wash trading to create the false illusion of active trading volume.
  • Front-Running: A rep or firm buying or selling for their own account ahead of a pending customer block order.
  • Pump and Dump: Hyping an illiquid microcap stock through false claims, then selling shares at the peak.
  • Freeriding: Buying stock and selling it before paying for the purchase; leads to a 90-day cash account freeze.
Knowledge Checkpoint • Section 3.9

A registered representative receives a large customer market order to buy 100,000 shares of stock. Before entering the customer's order, the representative buys 500 shares for their own personal account. What violation has occurred?