Assignment, explained: what happens when your put is exercised

Assignment is the moment the option buyer exercises their right and you, the seller, must fulfill your obligation. For a cash-secured put, that means you buy 100 shares per contract at the strike price using the cash you set aside.

You do not choose when assignment happens — the buyer does. But because you only sold puts on stocks you were willing to own, assignment simply hands you shares at a price you already accepted.

Most assignment happens at expiration, when the put is in the money — the stock is trading below the strike. If your $50 put expires with the stock at $47, you will almost certainly be assigned and buy shares at $50.

Puts that expire out of the money (stock above the strike) simply expire worthless, and you keep the full premium with no shares changing hands.

Occasionally a put is assigned before expiration ('early assignment'). This is uncommon for puts and usually only matters when a put is deep in the money with little time value left.

For covered calls later in the wheel, the key early-assignment trigger is dividends: a call buyer may exercise early to capture an upcoming dividend if the call is in the money and its remaining time value is less than the dividend. Knowing the ex-dividend date helps you anticipate this.

When assigned, your raw purchase price is the strike. But your effective cost basis is lower, because you already collected premium. If you sold a $50 put for $1.20 and get assigned, your effective basis is about $48.80 per share before fees.

This is why the wheel can be profitable even when a stock dips: the premium you collected cushions the entry, and covered-call premium collected afterward lowers the basis further.

Once shares land in your account, the wheel turns to its next phase: selling a covered call against them. You pick a call strike — usually at or above your cost basis — and collect fresh premium.

There is no rush to sell the call at the exact open; you can wait for a stable or rising price to get a better strike. The goal is to keep collecting premium while you hold the shares.

New sellers often dread assignment, but in the wheel it is a normal, expected step — not a mistake. You sold the put precisely because you were willing to own the stock at that price.

The only real failure mode is being assigned on a name you did not actually want, or in a size you cannot handle. Solve that at strike-selection and sizing time, and assignment becomes just another turn of the wheel.