Getting assigned on a cash-secured put means you just bought 100 shares of stock at your strike price — that's it. The option expires, the shares land in your account, and the cash you had set aside gets used to pay for them.

Let's make this concrete. Say you sold a cash-secured put on AAPL at the $170 strike, collected $3.00 in premium, and the stock dropped to $162 at expiration. You get assigned. Your account now holds 100 shares of AAPL, and you paid $170 per share for them — but here's the part people forget — your actual cost basis is $167 because you already collected that $3.00 premium. That premium doesn't disappear. It permanently reduces what you effectively paid for the stock.

What actually happens mechanically

On expiration Friday (or whenever early assignment hits), your broker automatically does two things: pulls the $17,000 in cash that was set aside as collateral, and deposits 100 shares of AAPL into your account. You wake up Monday morning and instead of a short put position, you have a stock position. No action required on your part — it just happens.

Early assignment is less common but does occur. American-style options (which most equity options are) can be assigned any time before expiration. This usually happens when the put is deep in the money and there's little time value left, or occasionally around ex-dividend dates. Most of the time though, if you sold a 30-45 DTE put, you're getting assigned at expiration if it's in the money.

Your cost basis is better than it looks

This is the piece that trips up newer wheel traders. People see the stock at $162 and think "I'm down $8 per share." You're not. You collected $3.00 in premium, so your real breakeven is $167. You're down $5 per share on paper — still not great, but meaningfully different.

If you've been running the wheel for a few months and collected multiple rounds of premium on this position before assignment, your cost basis could be even lower. Some traders track this carefully and find they got assigned at a strike of $170 but their adjusted cost basis is $160 or below after stacking premium over several cycles. That's the compounding effect of the strategy working as intended.

Now what? You're in the covered call phase

Assignment isn't a failure — it's literally the next step in the wheel. You now own 100 shares, which means you can sell covered calls against them. Pick a strike above your cost basis (not just above the current price — above your actual $167 cost basis), collect more premium, and either get called away at a profit or keep the premium and try again.

Using the AAPL example: stock is at $162, your cost basis is $167. You might sell a covered call at the $168 or $170 strike for maybe $2.50 if you're going out 30-45 days. Now your cost basis drops to $164.50. If AAPL recovers and you get called away at $170, you've made money on the full round trip even though the stock dropped significantly during the cycle.

When assignment actually hurts

Where traders get into trouble is when they sold puts on stocks they didn't actually want to own, or sized positions too large. If you sold three cash-secured puts on NVDA at $800 and got assigned on all three, you're now holding $240,000 worth of NVDA. That's a lot of concentration risk, and if NVDA keeps falling, the covered calls you sell might not recover your losses fast enough.

The other painful scenario is when a stock drops so hard — think 30-40% — that your covered calls are so far out of the money that the premium is nearly worthless. You're stuck holding a losing position and collecting pennies. This is why stock selection matters as much as strike selection. Only sell puts on stocks you'd genuinely be comfortable holding for 3-6 months if things go sideways.

One thing to do right now

If you have any open cash-secured puts that are currently in the money, go calculate your actual cost basis if assigned today. Take the strike price and subtract all the premium you've collected on that position. Then ask yourself: am I comfortable owning 100 shares at that price? If yes, let the wheel do its thing. If the answer makes you uncomfortable, that's worth paying attention to before expiration Friday rolls around.

Assignment isn't the end of the trade. It's the middle.