EXPIRY: EXERCISE, ASSIGNMENT, AND THE PIN

What physically happens when the deadline arrives: the OCC’s one-cent rule, the shares that land in accounts, and why this course closes before expiry day. Return to Lesson 1’s house, because this lesson is simply its deadline arriving. You paid earnest money for the right to buy at 773 any time before Nov 30. Expiry day is Nov 30. Three things can happen to a right on its last day: you use it early and often (you bought the house in October — early exercise, allowed because the contract is American-style); you sell the right itself to someone else before the date (closing the position — what traders almost always do); or the date arrives with the right still in your drawer. And for that third case the contract has a self-executing clause, written by the OCC: if the house is worth even slightly more than the agreed price at the deadline — one cent more — the purchase completes itself, and the money is due the next business day, whether you remembered the date or not. Every mechanic in this lesson is that clause, its mirror image for the seller, and the one-cent knife-edge where it switches on and off.

EXPIRY · STAGE 5 · LESSON 6

THE TAKEAWAYS

• The three endings, and who decides each. SOLD: you close the position any day the market is open — the ordinary ending, and the only one fully in your control. EXERCISED: you instruct your broker on any day up to expiry (American-style), or the system does it for you at the deadline under exercise-by-exception. EXPIRED: the default for anything out-of-the-money — the contract simply ceases to exist, and an unexercised in-the-money contract left without instructions is handled by the same exception rule, not by your intentions. Add the broker’s hand: brokers set their own exercise-instruction cutoffs ahead of the OCC’s processing, and a broker may close an expiring in-the-money position itself if your account plainly couldn’t settle the shares — policies differ by broker, and expiry afternoon is the wrong time to learn yours.
• Exercise-by-exception, precisely (OCC Rule 805). After the close on expiration day, every contract of a series that finished $0.01 or more in-the-money — measured against the underlying’s closing price — is deemed exercised, automatically, no phone call, no tap in the app. The escape hatches run both ways and both are called contrary instructions (Rule 805(b)): a holder may decline an automatic exercise, or exercise a contract that finished out-of-the-money — filed through the broker, ahead of the broker’s cutoff, which sits ahead of the OCC’s deadline. A one-cent threshold is not a rounding error; it is a cliff edge with a settlement on one side, and Lesson 5’s split tells you why the system is built this way: at expiry only intrinsic value remains, and a cent of it is still money that belongs to the holder.
• The settlement is real, in shares and in dollars. SPY options are physically settled: exercise the 773 call and you BUY 100 shares of SPY at $773 — $77,300, settling the next business day under Stage 2’s T+1. Get assigned on a short call and you must DELIVER 100 shares at 773. Get assigned on a short put and you must BUY 100 shares at the strike. There is no cash-equivalent shrug available — the shares move, the bill lands, and an account that cannot fund it meets its broker’s risk desk on the broker’s terms. Stage 8 teaches the morning-after procedure in full; Stage 5’s point is smaller and colder: the deadline is a settlement event with a date and a dollar figure, and it executes whether or not it was in your plan.
• Pin risk — the knife-edge, priced on this stage’s own contract. It is expiry day and SPY closes at 773.01: the long 773 call is one cent in-the-money, auto-exercise fires, and the holder wakes to 100 shares and a $77,300 settlement. SPY instead closes at 772.99: no exercise, no shares, no bill — the contract is simply gone. One cent of closing price separates ‘owner of 100 shares’ from ‘nothing happened’ — and because after-hours news can move SPY after the close print, a holder near the strike cannot even be certain which side of the cent they landed on until the notices settle. Sellers sit on the same edge, unsure whether the shares are leaving. The professional answer is not vigilance; it is absence. This course closes its positions before expiry day (Stage 7’s exits, Stage 8’s expiry week) precisely so that no trade it teaches ever sits on that cent.

WORKED EXAMPLE — STEP BY STEP

1. Set the scene on this stage’s contract: you hold the 773 call into its deadline, Monday Nov 30, 2026 — bought Oct 9 at the 20.68 ask in Lesson 2, and never closed. Its premium is spent history. What remains is a right with hours left and an extrinsic value of approximately zero (Lesson 5): whatever happens now is pure mechanics.
2. Expiry close, first version: SPY prints 800.14. The call finishes 27.14 in-the-money — far past the one-cent threshold — and is exercised by exception with no action from you. The next business day (T+1) your account pays $77,300 and holds 100 SPY shares, worth about $80,014 at that close. You did not decide to buy shares on Monday in any way you planned; the contract did, exactly as written, on exactly the date printed on it.
3. Same day, second version: SPY closes at 772.99. The call is one cent out-of-the-money: no exercise, no shares, no bill. The contract ceases to exist and the $2,068 premium is simply gone. One cent of closing price separated ‘owner of 100 shares with a $77,300 settlement due’ from ‘nothing happened at all’. That is the pin, priced — and it is why experienced traders speak of the strike on expiry day the way sailors speak of a lee shore.
4. The early-exercise road not taken, priced with Lesson 5’s split: back on Oct 9, with SPY at 778.12 and the call at a mid of about 20.60 — 5.12 intrinsic + 15.48 extrinsic — exercising then would have captured the 5.12 and burned the 15.48. Selling the contract captured both parts. That is why holders almost never exercise early even though SPY’s American style allows it any day: the only routine exercises in this market are the system’s, at the deadline, and the occasional dividend-driven assignment Stage 7 will show you.
5. The seller’s deadline, briefly: when you (or the system) exercise, someone is assigned. The OCC assigns the exercise to a clearing firm, and the firm’s broker allocates it among its customers holding that short contract by its disclosed method — the assigned seller of your call must deliver 100 shares at 773, and at the 800.14 close they are selling at 773 what trades at 800.14. Both seats’ deadlines are the same machine read from opposite ends — which is why Stage 8 can teach assignment as one procedure with two chairs.

THE STAGE 5 GATE — READ A CONTRACT COLD

Stage 5’s gate, in the course’s application style — nothing in it asks what you made: (1) From an unseen SPY chain screenshot, take any row and state its full sentence — underlying, type, strike, expiry, the right or the obligation, and the premium in dollars (×100). (2) Compute the long breakeven at expiry (call: strike + premium; put: strike − premium) and the position’s maximum loss. (3) State what happens at expiration at three finishing prices — below, at, and above the strike — for the buyer AND the seller, including whether the OCC’s one-cent rule fires and what settles the next business day. Hold those three skills and Stage 6’s pricing has ground to stand on: you cannot be mis-sold a contract you can read cold. And the door from Stage 0 stays open here too — a learner who can read every contract on the shelf and decides the game is not for them has passed the only test this course ultimately grades.

COMMON BEGINNER MISTAKES

• Holding a long contract into expiry day ‘to see what happens’. What happens is a settlement you didn’t schedule — shares and a five-figure bill, or nothing, decided by a cent of closing price.
• Exercising early to ‘lock in’ value. Exercise pays intrinsic only; the extrinsic (15.48 on this stage’s example) is burned. Sell the contract and keep both parts.
• Assuming out-of-the-money means safe for a seller near the pin. A close a cent either side of your strike flips assignment on or off — after you have lost the ability to trade out of it.
• Not knowing your broker’s expiry-day rules — its instruction cutoff, and what it does with an expiring position your account can’t settle. Read them in October calm, not on expiry afternoon.

CHECK YOURSELF

DO IT — REHEARSE A DEADLINE ON PAPER

Take the 773 call from your journal work and write its expiry page: the deadline date (Nov 30, 2026), then the three closes — 772.99, 773.01, and 800.14 — and exactly what happens to the buyer and the seller at each: shares, dollars, and the settlement day. Then find, in your own broker’s published options pages, its expiry-day instruction cutoff and its policy for an expiring position your account couldn’t settle — write both down verbatim (guessing doesn’t count). File the page where Stage 8 will expect to find it.