SIE · Understanding Trading, Customer Accounts and Prohibited Activities · Free Lesson

Trade settlement and corporate actions: settlement cycles, book entry, splits, tender offers, mergers and proxies

Free FINRA SIE (Securities Industry Essentials) lesson in Understanding Trading, Customer Accounts and Prohibited Activities. 26 min read, ~3,899 words.

Overnight, a customer's 300 shares become 900, the quote drops from $96 to $32, and her two call contracts turn into six. She lost nothing. You need to be able to explain why, and to know how the trade, the paperwork and the shareholder vote behind each position work.

Every trade has two dates. The trade date, written T, is the day the order executes. The settlement date is the day cash and securities change hands at the agreed price and the buyer becomes the owner. The gap lets firms match and confirm the trade. Each extra day, though, is a day when one side could fail to pay or deliver.

Of all the settlement cycles, regular-way is the one to assume when a question names no other. Regular-way settlement is the standard date that applies unless buyer and seller agree otherwise when they trade. Since May 28, 2024, Securities and Exchange Commission (SEC) Rule 15c6-1 has set it at T+1, one business day after the trade date.

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Bottom line

Exam shortcut

Find the verb in the stem first. "Settle" or "regular way" means T+1 for any product. "Pay" in a cash account means T+3, and "cash trade" means today. For any split, write the ratio as a fraction and run three checks: shares times the ratio, price divided by it, and total value and basis unchanged. An answer that changes the total is wrong.

The full lesson (about 3,899 words, 26 min read) adds 2 worked examples, all 6 common mistakes, a self-check, free in the app.

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