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What is rolling an option, in simple terms?
Rolling means you close the option you sold and open a new one in its place, usually with a later date. It's two trades in one order, and it buys you time.
The short answer
Rolling is two steps done together:
- Buy to close the option you sold.
- Sell to open a new option, usually with a later Expiration date, and often a different Strike price.
Most brokers let you do both in one order. If the new option pays more than the old one costs to close, you get a credit. If it pays less, you pay a debit.
Rolling is common in the wheel strategy when a trade is close to Assignment and you'd rather not take it yet.
The words people use
- Roll out: same strike, later date.
- Roll down: a lower strike. Used on puts, to lower the price you might buy at.
- Roll up: a higher strike. Used on covered calls, to raise the price you might sell at.
- Roll down and out / up and out: both at once.
One example (an illustration, not a trade idea)
A made-up stock, XYZ, was at $50. You sold a 30-day $45 put for $1.00 and collected $100.
With a few days left, XYZ is at $43. The put is now worth $2.50. You don't want to buy the shares yet. So you roll:
- Buy to close the $45 put for $2.50. You pay $250.
- Sell to open next month's $45 put for $3.00. You collect $300.
- Net: a $0.50 credit, or $50.
Counting the first trade, you've now collected $1.00 − $2.50 + $3.00 = $1.50 a share, or $150 in total. You still have a $45 put open, a month longer.
How the new put can end
| XYZ at the new expiry | What happens | Total, both trades |
|---|---|---|
| $50 | Put expires | +$150 |
| $46 | Put expires | +$150 |
| $43.50 | Assigned at $45, worth $43.50 | −$150 + $150 = $0 |
| $40 | Assigned at $45, worth $40 | −$500 + $150 = −$350 |
| $35 | Assigned at $45, worth $35 | −$1,000 + $150 = −$850 |
Math examples, not promises. The roll added time and a small credit. It didn't change the promise to buy at $45.
What rolling does, and what it doesn't
It does:
- Push back the date the promise can be called in.
- Often collect a little more premium.
- Give the stock more time to recover.
It doesn't:
- Erase a loss. If the stock keeps falling, you're still promising to buy at a price above where it trades.
- Lower your risk, unless you also move the strike.
- Work forever. Each roll keeps the trade open longer. Rolling over and over can turn a small loss into a bigger one.
When people roll, and when they don't
People often roll when:
- The stock is near the strike and they still like it at that price.
- They can roll for a credit, so they're paid to wait longer.
People often skip the roll when:
- The stock has fallen far below the strike, and only a debit roll is on offer.
- They no longer want the stock at all. Then closing, or taking the shares and selling them, may be cleaner.
A simple rule many sellers use: only roll for a credit, and never roll just to avoid admitting a loss.
Questions
Is rolling the same as closing?
No. Closing ends the trade. Rolling ends one option and opens another at once, so you're still in a trade.
Does rolling cost money?
It can go either way. If the new option pays more than the old one costs, you get a credit. If not, you pay. There may be fees on both legs too; check your broker.
Can I roll after I'm assigned?
No. Once you're assigned, the option is gone and shares have moved. You can then sell a new option on the shares, but that's a new trade, not a roll.
How many times can I roll?
As many times as there are later expiries. Each roll keeps the risk open longer, though. Decide a limit before you start.
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