Lesson 1.3 — Exercise and Assignment

Hook

Saturday morning, coffee, and a notification you did not ask for: Assigned — 100 shares of KO. −$6,200 from cash. Your stomach drops. You did not place a trade Saturday. You did not click anything. Six thousand two hundred dollars just left your account, and a hundred shares of Coca-Cola you did not decide to buy are sitting where the cash used to be. Nothing broke. No one made a mistake. This is the contract from Lesson 1.2 doing exactly what it said it would do the moment you sold it: you sat in the seller's chair and collected the premium, and the house was just called to settle. The distance between the panic in your chest and a plan in your hands is one thing — knowing, in dollars, what physically happens when an option is assigned. That is this whole lesson.

The Concept

Two words describe the two chairs at a single transaction, and beginners mix them up constantly because brokers use them almost interchangeably. They are not interchangeable.

Exercise — the buyer of an option invoking the right they paid for, forcing the trade the contract promised. The buyer holds the right; exercise is them using it.

Assignment — the seller of that option being selected to fulfill the obligation they were paid to take on. You did not choose the timing; you were chosen to make good on the deal you signed.

That is the entire relationship: one side holds a right, the other side carries an obligation, and exercise on one end triggers assignment on the other. Every assignment in the world has a buyer on the far side exercising.

Now the physical mechanics, stripped to the cash and the shares:

• A put gets exercised. The buyer of the put sells 100 shares to you at the strike. You — the assigned seller — buy those 100 shares at the strike: strike × 100 in cash leaves your account, and 100 shares arrive.
• A call gets exercised. The buyer of the call buys 100 shares from you at the strike. You — the assigned seller — deliver 100 shares out of your account, and strike × 100 in cash arrives.

Same skeleton both times: the assigned seller does the thing the strike named, at the strike, for 100 shares — because, as Lesson 1.1 put it, an option is a contract on time and probability, and one contract controls exactly 100 of them. One fact of market mechanics to note in passing: standard US equity options can be exercised by the buyer any time before expiration, not only on the last day, so assignment can land early. Exactly how early assignment and dividends can pull that timing forward is a rule we formalize in Lesson 7.4; here, one sentence is enough.

Here is the frame that turns the Saturday panic into a shrug. Assignment is not a penalty, and it is not a malfunction. It is the other half of a transaction you were paid to sign. When you sold that put and pocketed $45, the $45 was your fee for standing ready to buy the stock at the strike; assignment is simply the day someone takes you up on it. The obligation you agreed to in the abstract just became concrete — and for a premium seller, that is the moment the obligation stops being a footnote and becomes the whole job.

Real Numbers

Walk the KO put from both chairs. Illustrative numbers — an illustration, not a recommendation or a track record.

You sell one KO $62 put with 30 days to expiration — DTE, the days left before the contract expires. The premium is $0.45 a share, and one equity option controls 100 shares, so you collect $0.45 × 100 = $45. To secure the put you reserve the strike in cash: $62 × 100 = $6,200, set aside for exactly one purpose — to buy the shares if you are assigned. The allocator's version of the same point: that $6,200 was never idle collateral gathering dust; it was reserved against this precise day, and today the day came.

Expiration arrives and KO closes at $58 — below your strike, so the put is in the money and the buyer exercises. Assignment lands. Line by line, here is what moves:

• $6,200 in cash leaves your account — the strike, $62 × 100.
• 100 KO shares arrive — you own them now.
• The $45 premium stays yours — you were paid it up front and you keep it, whatever happens next.

So the true cash you spent on the stock is $6,200 − $45 = $6,155, and the 100 shares are worth $58 × 100 = $5,800 at that instant. Say it plainly, because the risk has to ride in the same breath as the income: the moment after assignment you are $6,155 − $5,800 = $355 underwater on the position, before you make a single further decision. The $45 did not vanish — it softened the blow from $400 to $355 — but it did not erase it.

Now the mirror. The person on the other side exercised precisely because it paid them to. They sell you 100 shares at $62 and receive $6,200 for stock worth $5,800: a gross gain of ($62 − $58) × 100 = $400, minus the $45 premium they paid you at the start, for $355 net. Their $355 is your $355 — the table is symmetric on purpose.

Side	Cash moves	Shares	Where they stand at that instant
You — short the put, assigned	−$6,200 out, +$45 kept	+100 KO shares (worth $5,800)	−$355
The buyer — long the put, exercises	+$6,200 in, −$45 paid	−100 KO shares (worth $5,800)	+$355

One contract, one strike, one settlement price — and the buyer's gain is the seller's loss to the dollar. That is what "the other half of the transaction" means in cash.

The call side is the same machine run backward, and you can read it off the mechanics with no new numbers: if you are assigned on a short call, 100 shares leave your account and strike × 100 in cash arrives. You deliver the stock at the strike; the buyer takes it.

In Remora

The product treats assignment as a normal phase of a trade, not a fire alarm. The Wheel Co-pilot lives at the direct URL /wheel — there is no main-nav link to it on most pages — and it is a Pro-and-up surface, the active trial included, showing a cash-secured-put cycle and its suggested contracts. What matters for this lesson is the language the page uses about being assigned, quoted from the product itself:

Output-only decision aid… assignment is probabilistic… This is not investment, tax, or legal advice. Review every trade before placing it.

Read what that disclaimer is doing: it frames assignment as a probability you manage, not an accident that befalls you — and it tells you, in its own words, to review every trade before you place it. The assignment itself happens at your broker, on settlement; Remora, in its own words, is an "output-only decision aid" that helps you weigh the trade before you place it.

Screenshot/wheel Wheel Co-pilot page with a cycle card visible

The Mistake

The panic dump. Take the KO seller from the top of this lesson. The Saturday notice hits — assigned, 100 shares, −$6,200 — and by Monday's open he has sold all 100 shares at $58, locking in the $355 loss inside the first five minutes of the week. He never asked the one question that mattered: what did I agree to when I collected that $45? He read the word "assignment" and reacted as if it were a margin call — an emergency to be closed out — when it was nothing of the kind.

Notice what the error is not. It is not selling versus holding: this course makes no forecast about KO and gives you no recommendation either way; $58 might be a fine exit or a terrible one, and nothing here tells you which. The error is deciding in fear — hitting the button before rereading the deal he signed. Assignment happening is not, by itself, a reason to do anything. It is the contract keeping its word.

Mantra

Exercise is the buyer's right; assignment is your obligation.

Check

Q1. In one sentence: which side of an option exercises, and which side is assigned?

Q2. You are short the KO $62 put and KO closes at $58, in the money. State, in numbers, what leaves and what arrives in your account.

Q3. You wake up Saturday to that assignment notice. Before you touch a single button Monday morning, what should you reread or ask — and why is "assignment happened" not, on its own, a reason to act?

Q4. You are assigned on a short call. In numbers, what leaves your account and what arrives?