SIE Plan

Understanding Trading, Customer Accounts and Prohibited Activities: practice questions

6 original questions · 6 editor-approved · every choice explained.

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Blueprint-mapped questions with full rationales for every choice.

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Understanding Trading, Customer Accounts and Prohibited ActivitiesDifficulty 3/5

A customer holds 100 shares with a cost basis of $60 per share when a two-for-one split is completed. What is the position afterwards?

  1. A100 shares with a cost basis of $30 per share, the total having halved
  2. B50 shares with a cost basis of $120 per share, the total unchanged
  3. C200 shares with a cost basis of $30 per share, the total unchanged
  4. D200 shares with a cost basis of $60 per share, the total having doubled
Show answer and rationale

Correct: C. A split changes the per-share figures and leaves total value alone. Shares double, price and per-share cost basis halve, and the customer is neither richer nor poorer for it.

  • D — The cost basis per share must adjust downward, or the split would create value from nothing.
  • A — The share count doubles in a two-for-one split; it does not stay the same.
  • B — That describes a one-for-two reverse split, which is the opposite corporate action.
Understanding Trading, Customer Accounts and Prohibited ActivitiesDifficulty 3/5

A registered representative notices a pattern of transactions with no apparent lawful purpose. Which report does this call for?

  1. AA Currency Transaction Report, which is filed because of the nature of the activity
  2. BAn OFAC blocking report, which is filed because of the nature of the activity
  3. CA Form U4 amendment, which is filed because of the nature of the activity
  4. DA Suspicious Activity Report, which is filed because of the nature of the activity
Show answer and rationale

Correct: D. The SAR is triggered by suspicion; for a broker-dealer it is mandatory when the activity involves at least $5,000, and voluntary below that. The CTR is triggered mechanically by a currency threshold, whether or not anything looks wrong.

  • A — A CTR is driven by a currency amount threshold, not by whether the activity looks suspicious.
  • B — OFAC reporting concerns blocked persons on the SDN list, not suspicious transaction patterns.
  • C — Form U4 reports the representative's own registration information, not customer activity.
Understanding Trading, Customer Accounts and Prohibited ActivitiesDifficulty 2/5

A firm fills a customer order from its own inventory rather than finding a counterparty. In what capacity did it act?

  1. AAs principal, because the firm traded from its own account
  2. BAs agent, because the firm traded from its own account
  3. CAs a transfer agent, because the firm traded from its own account
  4. DAs a municipal advisor, because the firm traded from its own account
Show answer and rationale

Correct: A. Principal means trading from the firm's own account and taking the other side. Agency means arranging the trade between the customer and someone else for a commission.

  • B — Acting as agent means arranging a trade with a third party, not supplying the securities itself.
  • C — A transfer agent maintains records of security ownership and does not fill customer orders.
  • D — A municipal advisor advises municipal issuers and has no role in filling a customer order.
Understanding Trading, Customer Accounts and Prohibited ActivitiesDifficulty 2/5

A trader places an order for their own account ahead of a large customer order they know is coming. What is this?

  1. AFreeriding, a prohibited form of market manipulation
  2. BFront running, a prohibited form of market manipulation
  3. CBacking away, a prohibited form of market manipulation
  4. DMarking the close, a prohibited form of market manipulation
Show answer and rationale

Correct: B. Front running is trading ahead of a known customer order to profit from the price movement it will cause. All four options are genuine prohibited practices, which is why naming them precisely matters.

  • C — Backing away is failing to honour a quoted price, which is a different prohibited practice.
  • D — Marking the close is trading near the end of the session to influence the closing price.
  • A — Freeriding is selling securities before paying for them in a cash account.
Understanding Trading, Customer Accounts and Prohibited ActivitiesDifficulty 3/5

What does the ex-dividend date determine?

  1. AThe date the board of directors formally declares the dividend amount
  2. BThe date by which the issuer must notify the exchange of the dividend
  3. CWhether a buyer of the stock is entitled to the declared dividend
  4. DThe date on which the declared dividend is actually paid to holders
Show answer and rationale

Correct: C. Buying on or after the ex-dividend date means buying without the dividend, which is what the term means. The payable date is when money moves, and the record date identifies holders of record.

  • D — That is the payable date, which comes later and concerns settlement of the payment itself.
  • A — That is the declaration date, when the board announces the dividend.
  • B — Notification to the exchange is an administrative step and is not what the ex-date governs.
Understanding Trading, Customer Accounts and Prohibited ActivitiesDifficulty 2/5

Regulation S-P, as listed in the SIE outline, governs which of the following?

  1. AThe extension of credit by a broker-dealer to a margin customer
  2. BThe registration of securities offered to the public by an issuer
  3. CThe reporting of suspicious transactions to FinCEN by a member firm
  4. DNonpublic personal information, privacy notices and safeguard requirements
Show answer and rationale

Correct: D. Regulation S-P is the privacy rule: confidentiality of customer information, privacy notifications and safeguards. It sits in the books, records and privacy part of section 3.

  • A — Credit extension to margin customers is governed by Regulation T, a Federal Reserve rule.
  • B — Registration of public offerings is governed by the Securities Act of 1933.
  • C — Suspicious transaction reporting arises under the anti-money laundering rules, not Regulation S-P.

Primary references

  1. Securities Industry Essentials (SIE) Examination Content Outline — Financial Industry Regulatory Authority (FINRA) · primary · retrieved 2026-09-22, verified 2026-09-22