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Should you sell puts right after a drop, or wait?
Put premiums jump after a stock drops, because the market now expects bigger moves. That can be a fair chance to get paid, or the first step of a longer slide. A short check, and sometimes a short wait, tells you which.
The short answer
After a sharp drop, Implied volatility usually rises. Puts get more expensive, so selling one pays more than it did a week ago. Some sellers wait for exactly that moment.
But a stock that just fell is also a stock that might keep falling. The bigger premium is the market's way of saying so. Selling right away means catching it while it's still moving. Waiting a few days costs some premium, and buys you information.
Our view: run the falling-knife check first. If it passes, a dip can be a fine time to sell. If it fails, wait or skip.
Why premiums jump after a drop
Two things happen when a stock falls hard:
- It's closer to your strikes. A put that was far below the price is now nearer, so it's worth more.
- The market expects more movement. Nervous markets push IV up. Every option gets pricier, even at the same distance from the price.
That's why the same 10%-below-the-price put can pay twice as much after a fall. It's not a sale. It's a higher price for a bigger risk.
A worked example where selling too soon loses (an illustration, not a trade idea)
A made-up stock, XYZ, was $60 a week ago. After weak news across its industry, it's $50. A 30-day $45 put used to pay about $1.00. Today it pays $2.00 ($200).
Seller A sells now. One $45 put, $200 collected, $4,500 set aside.
Seller B waits a week and runs the falling-knife check below before selling.
Here's how four different months could go:
| What XYZ does | Seller A (sold right away) | Seller B (waited a week) |
|---|---|---|
| Keeps sliding to $35 by expiry | Assigned at $45: −$1,000 + $200 = −$800 | Check fails; doesn't sell: $0 |
| Slides to $40, then steadies | Assigned: −$500 + $200 = −$300 | Check fails in week one; sells a $38 put later for $1.20: +$120 |
| Steadies near $48 | +$200 | Sells a $43 put for $1.20: +$120 |
| Bounces to $55 | +$200 | Sells a $48 put for $1.00: +$100 |
In the good months, Seller A earned more. Waiting had a cost: lower premiums once things calmed down.
In the bad months, Seller A lost. The first row is the one to follow.
The loss, followed through. Seller A now owns 100 shares at $45. Cost after the premium: $43. XYZ is at $35.
| Seller A's position | Amount |
|---|---|
| Paid for 100 shares at $45 | −$4,500 |
| Premium collected | +$200 |
| Value of shares at $35 | $3,500 |
| Result so far | −$800 |
To avoid locking in that loss, A would sell calls at $43 or higher. With the stock at $35, those pay very little. A is now waiting on a recovery that may take months. The $200 premium that looked so good covered only a fifth of the $1,000 drop below the strike.
In plain words: a bigger premium after a drop is the market pricing in more drop. Make sure the drop is over before you agree with it.
The falling-knife check
A "falling knife" is a stock still in the middle of a fall. You don't want to catch it by the blade. Run these five checks before selling a put after a drop:
- Why did it fall? A whole-market dip is different from company news. A lost lawsuit, a cut outlook or a failed product can keep a stock falling for weeks.
- Has it stopped making new lows? Look for a few days in a row where it closes above its lowest close. If every day is a new low, wait.
- Is more news coming? Earnings, a court date or a product result inside the expiry means another possible gap. See checking the earnings date before selling.
- Would you own it after another 20% fall? Picture the stock 20% below your strike. If you'd panic, the answer is no.
- Is the size small? After a drop, start with fewer contracts than usual. Add later if the stock steadies.
If two or more checks fail, wait. The premium will still be there in some form next week. Your cash will too.
Waiting has a cost, and that's fine
Waiting isn't free. If the stock bounces quickly, you'll sell at a lower premium, or miss the trade. Seller B's results above show that.
But missing some premium is a small, known cost. Being assigned on a stock that keeps falling is a large, open-ended one. On the wheel strategy, the bad months decide how the year goes, so trading a little premium for fewer bad months is usually a good deal.
A middle path many sellers use:
- Sell a smaller position right after the drop, with a strike further below.
- Keep the rest of the cash for a second put once the check passes.
After a market-wide drop
When the whole market falls, many stocks pass check 1 at once: the fall isn't about them. That can be a reasonable time to sell puts on stocks you'd own. But a market drop can also keep going, and everything falls together.
Watch your total committed cash, not just each trade. See the market crashed with five puts open for what happens when it does.
In Canada, the same checks apply in a TFSA or RRSP. Covered calls are widely allowed there; cash-secured puts depend on the broker, and options permissions differ by broker.
Questions
Is it a good idea to sell puts after a stock drops?
It can be, if the stock is one you'd own and the fall looks finished. Premiums are higher after a drop because the market expects more movement, which includes more falling.
Why are put premiums higher after a sell-off?
The stock is closer to the strikes, and implied volatility usually rises when markets are nervous. Both push option prices up.
What is a falling knife in trading?
A stock that's still dropping fast. Buying it, or selling puts on it, risks being assigned while it keeps falling.
How long should I wait after a drop to sell puts?
There's no fixed time. Many sellers wait until the stock stops making new closing lows for a few days and no big news is due before expiry.
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