What Is Rolling Up a Covered Call?
Rolling up a covered call means buying back (closing) your existing short call and simultaneously selling a new call at a higher strike price. This adjustment is typically made when the stock has risen above your original strike price and you want to capture more of the stock's upside rather than having your shares called away at the lower strike. Rolling up usually results in a net debit because the original call has gained value (it costs more to buy back than you received), while the new higher-strike call generates a smaller premium.
The decision to roll up should be based on whether the additional upside potential exceeds the net cost of the roll. If the stock has risen $10 past your strike and the roll costs $4.50, you capture an additional $5.50 per share in potential profit. This calculator helps you make that analysis quickly and accurately.
Roll Up Formulas
- 1Net debit of roll = $8.50 - $4.00 = $4.50 per share
- 2Old max profit = ($105 - $100 + $3.00) × 100 = $800
- 3New max profit = ($115 - $100 + $3.00 - $4.50) × 100 = $1,350
- 4Additional upside = ($115 - $105 - $4.50) × 100 = $550
- 5New breakeven = $100 - $3.00 + $4.50 = $101.50
- 6The roll increases max profit by $550 at a cost of $4.50/share
When to Roll Up vs. Let Shares Be Called Away
| Factor | Roll Up | Let Be Called Away |
|---|---|---|
| Net debit vs. additional upside | Debit < additional strike distance | Debit > additional strike distance |
| Bullish conviction | High confidence stock continues rising | Uncertain about further upside |
| Tax situation | Want to avoid taxable stock sale | OK with capital gains tax |
| Income priority | Willing to reduce premium income | Want to maximize premium collected |
| Transaction costs | Commissions are small vs. position | Commissions eat into benefit |
A roll up is mathematically worthwhile when the net debit is less than the difference between the new strike and the old strike. In our example, the $4.50 debit is less than the $10 strike increase ($115 - $105), so the roll captures $5.50 in additional potential profit per share.
Roll Up vs. Roll Up and Out
Rolling up means moving to a higher strike at the same expiration date. Rolling up and out means moving to both a higher strike and a later expiration date. Rolling up and out can sometimes be done for a smaller net debit (or even a credit) because the longer-dated option has more time value. However, it extends your capital commitment and exposes you to more time risk. Consider rolling up and out when the net debit for a same-expiration roll is too high.
How to Execute a Roll Up
Multiple Roll Scenarios
| New Strike | Buy-Back | New Premium | Net Debit | New Max Profit | Worth It? |
|---|---|---|---|---|---|
| $110 | $8.50 | $6.00 | $2.50 | $1,050 | Yes ($5 upside for $2.50) |
| $115 | $8.50 | $4.00 | $4.50 | $1,350 | Yes ($5.50 upside for $4.50) |
| $120 | $8.50 | $2.00 | $6.50 | $1,350 | Marginal ($8.50 gain - $6.50 cost) |
| $125 | $8.50 | $0.80 | $7.70 | $1,330 | No (cost exceeds added benefit) |