Series 99 Exam — Mock Exams & Practice Tests

The Series 99 (Operations Professional Qualification Exam) focuses on the broker-dealer’s operational “plumbing”: onboarding, cashiering and transfers, custody and control, margin and stock loan, settlement/fail control, confirmations/statements, financial controls, and books-and-records discipline.

Key points:

• Sponsorship required: you must be associated with a FINRA member firm (or other applicable SRO member firm) to sit for Series 99.
• Corequisite: SIE.
• Registration category: Operations Professional (FINRA Rule 1220(b)(3), high level).
• Exception: FINRA lists “eligible registrations” that may qualify you without taking Series 99 (see FAQ).

Use this hub as your study flow:

• Overview : exam format, timing, score, and what’s tested
• Syllabus : blueprint → functions → learning objectives (practice links included)
• Cheatsheet : high-yield workflows, definitions, controls, and common traps
• Practice : timed mocks + targeted drills
• FAQ : eligibility, exceptions, and study strategy
• Resources : official FINRA links and the content outline PDF
• Updates : content changes and syllabus mapping updates

In this section

• Series 99 Mock Exams & Practice Exam Questions | FINRA Operations Professional
  Series 99 mock exams and practice exam questions for FINRA Operations Professional. Timed practice sets and detailed explanations in the FINRA Exam Prep app (web, iOS, Android).