Calculator

Options Roll Calculator

Roll or let it ride? Enter your current position and the proposed roll to see yield, breakeven, and net credit side by side. You'll know in seconds whether the roll is worth it.

How to Use This Calculator

Enter your current position: strike price, original premium, current buy-to-close price, and DTE remaining. Then enter the proposed roll: new strike, new premium, and new DTE. You'll see both positions side by side instantly — net credit or debit, annualized yield, and breakeven.

The recommendation runs three tests: (1) Is it a net credit or a small enough debit to justify? (2) Does the new position have a better annualized yield than holding the current one? (3) Does the breakeven improve? If at least two pass, you get a green light.

Try modeling a roll down and out when your put is under pressure — lower strike, later expiration. Or a roll up and out on a covered call when the stock blows past your strike. Either way, compare the annualized yields. If the new position doesn't improve your income rate, you're just extending a losing trade.

When Should You Roll an Option?

Rolling means closing your current option and opening a new one — usually further out in time, sometimes at a different strike. It's the most common adjustment for anyone running the wheel, selling covered calls, or selling CSPs.

The question is always the same: does the new position improve my outcome? If yes, roll. If no, don't. It really is that simple. Don't overthink it.

Good Reasons to Roll

You get a net credit: The new premium is bigger than the close cost. You're getting paid to adjust.
Your breakeven improves: The new strike or premium moves your breakeven to a safer level.
You don't want assignment anymore: Rolling a put down and out can prevent buying shares at a price that no longer makes sense.
Your theta's almost dead: If the current option has pennies of time value left, rolling to a new expiration resets the theta clock and gets you back to earning.

When to Just Let It Expire

It's far OTM with only a few days left — the premium from rolling isn't worth the effort.
Rolling requires a debit with no real improvement in yield or breakeven. That's just paying money to extend a bad trade.
You're fine with assignment (puts) or getting called away (calls) at the current strike. Nothing wrong with that.
Your thesis changed. If you don't believe in the stock anymore, close it and move on. Don't roll a position you no longer want.

Credit Rolls vs. Debit Rolls

A credit roll is when the new premium exceeds your close cost. You pocket the difference. This is what you want — you're getting paid to adjust. I won't roll unless I'm getting a credit or the breakeven improvement is significant.

A debit roll means closing costs more than the new premium. You're paying out of pocket to adjust. Sometimes it's necessary — like rolling a deep ITM put to a safer strike. But the improved position has to justify the cost. If you're paying $0.80 in debit to improve breakeven by $3, that math works. If you're paying $0.80 for a $0.50 improvement, it doesn't.

The Annualized Yield Test

The fastest way to compare keep vs. roll is annualized yield. It normalizes premiums across different time frames so a 12-DTE option and a 45-DTE option are on equal footing. If the rolled position has a higher annualized yield and a net credit, it's almost always the right call. This calculator does that comparison for you automatically.

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Key Formulas

Net Credit/Debit = New Premium − Buy-to-Close Cost

Annualized Yield = (Premium / (Strike × 100)) × (365 / DTE) × 100

Breakeven (Put) = Strike − Premium Received

Breakeven (Call) = Strike + Premium Received

Frequently Asked Questions

What does rolling an option actually mean?

You buy back your current option and sell a new one — usually further out in time, sometimes at a different strike. It's one move that adjusts your position without fully closing it. Think of it as swapping out your old contract for a better one.

Do I always need to roll for a credit?

Credit rolls are ideal — you're getting paid to adjust. But a small debit roll can be worth it if it significantly improves your breakeven or prevents an assignment you don't want. The question is always: does the new position have a better risk/reward? If yes, a small debit is fine.

When should I roll down and out?

When the stock's dropped below your put strike and you don't want to take assignment at that price anymore. Move to a lower strike, push the expiration out, and you can usually do it for a net credit. This is the most common defensive move for CSP sellers. I've done it dozens of times.

How do I compare yields between two different expirations?

Annualized Yield = (Premium / Capital Required) x (365 / DTE) x 100. This normalizes everything so a 14-day option and a 45-day option are on equal footing. The calculator does this math automatically — just look at the side-by-side comparison.

Is rolling just kicking the can down the road?

It can be — and that's the honest answer. A good roll collects more premium and improves your breakeven. A bad roll just extends a losing trade longer. Before you roll, check two things: does the annualized yield improve? Does the breakeven improve? If neither does, take the assignment or close the position. Don't roll out of fear.