SIE Exam: Trading and Settlement

Section 3 — Understanding Trading, Customer Accounts and Prohibited Activities (31% of exam)

This SIE exam topic covers the mechanics of how securities orders are placed, executed, and settled. You must know the different order types: market orders (immediate execution at best price), limit orders (price restrictions), stop orders (triggered at a specified price), and stop-limit orders (combining both features). Time qualifications such as day orders, good-til-cancelled (GTC), fill-or-kill (FOK), and immediate-or-cancel (IOC) are frequently tested. The concept of best execution under FINRA Rule 5310 requires broker-dealers to use reasonable diligence to find the best market for customer orders. You should understand the National Best Bid and Offer (NBBO) and payment for order flow. Settlement cycles are critical: equities and corporate bonds settle T+1 (trade date plus one business day), options settle T+1 after exercise, and government securities settle T+1. The roles of the NSCC (clearing and netting) and DTC (central securities depository) in the settlement process are important. Dividend-related concepts — declaration date, ex-dividend date, record date, and payable date — are essential, as is understanding when-issued trading and good delivery requirements.

Key Concepts

Market Order

An instruction to buy or sell immediately at the best available price. Guarantees execution but not a specific price.

Limit Order

Sets a maximum purchase price (buy limit) or minimum sale price (sell limit). Guarantees price but not execution.

Stop Order

Becomes a market order when the stop price is reached. Sell stops protect long positions; buy stops protect short positions.

T+1 Settlement

The standard settlement cycle for equities, corporate bonds, and municipal bonds. Payment and delivery occur one business day after the trade date.

Best Execution

Under FINRA Rule 5310, broker-dealers must use reasonable diligence to find the best market for customer orders, considering price, speed, and likelihood of execution.

Ex-Dividend Date

Set one business day before the record date. Buyers on or after the ex-date do not receive the declared dividend. Under T+1 settlement, you must buy before the ex-date to receive the dividend.

NBBO (National Best Bid and Offer)

The highest available bid price and lowest available ask price across all exchanges and market centers. Broker-dealers generally must not execute at prices worse than the NBBO.

Practice Questions

Question 1 of 4

Which type of order is executed immediately at the best available market price?

Question 2 of 4

A fill-or-kill (FOK) order differs from an immediate-or-cancel (IOC) order in that a FOK order:

Question 3 of 4

What is the regular-way settlement cycle for equity securities and corporate bonds?

Question 4 of 4

A customer places a sell stop order at $40 for a stock currently trading at $45. The stock drops rapidly, trading at $40.50, $40.00, $39.50, $39.00. At what price is the order most likely triggered, and what type of order does it become?

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Frequently Asked Questions

What order types should I know for the SIE exam?

Key order types include market orders, limit orders (buy and sell), stop orders, stop-limit orders, and time qualifications like day orders, GTC, FOK, and IOC. Know how each works, when they are used, and the difference between a stop order becoming a market order vs. a stop-limit becoming a limit order.

What is T+1 settlement?

T+1 means trades settle one business day after the trade date. This applies to equities, corporate bonds, and municipal bonds. Government securities also settle T+1. Options premiums settle T+1. Cash settlement (T+0) and when-issued settlement (TBD) are exceptions.