Managing positions: rolling out, up and down, delta adjustments, profit targets and when to close early
Learn the mechanics and arithmetic of rolling an option position, when a delta adjustment makes sense, and why many sellers close winners early.
What you will learn
- What rolling an option actually is and how to track total credit and break-even across rolls.
- The difference between rolling out, rolling down or up, and rolling the untested side of a condor.
- How to set profit targets and time-based exits for short-premium trades.
- When closing early is better than defending, and how to write the rule in advance.
Explanation
Rolling means closing an existing option and opening a new one with a later expiry, a different strike, or both, in one combined order. The realised result on the old option is simply combined with the premium of the new one; the only useful measure is the total net credit of the whole sequence, which decides your real break-even.
Three roll types:
- Roll out: same strike, later expiry. Usually done for a credit, because the longer-dated option has more time value; it buys time but keeps the strike exposure.
- Roll down (puts) or up (calls): move the strike away from the price. Reduces risk but often costs a debit unless you also roll out.
- Roll the untested side: when the price of an iron condor or strangle moves toward the short call, roll the short put closer to collect extra credit. This narrows the range; do it at most once.
A delta adjustment is any change made because the position delta has moved too far from your plan. In lesson 4 you built iron condors with short strikes near 16 delta; a common practitioner rule is to adjust when a short strike reaches about 30 delta. Such thresholds are conventions; what matters is that they are written down before you trade.
Profit targets. A short-premium trade earns the last part of its credit slowly and with rising gamma risk. Many sellers therefore close at 50% of the maximum credit, or at a fixed number of days before expiry (often around 21 for monthly options), whichever comes first. Test such rules on your own records; we quote no success statistics.
When to close rather than roll. Roll only if you would open the new position today as a fresh trade. If the original reason is gone (volatility regime changed, earnings now inside the new expiry, roll only possible for a debit), closing is usually cleaner.
Worked example
Hypothetical example: you sold one $95 put on a US share for $2.00 with 30 days to expiry (DTE) while the share traded at $100. Twenty days later the share has fallen to $93 with 10 DTE and the put trades at $4.00. Prices are per share; one contract covers 100 shares. Fees and taxes are excluded.
Option 1: close. Buy back at $4.00: realised loss = $2.00 − $4.00 = −$2.00 per share, or −$200 per contract.
Option 2: roll out. Buy back the 10-DTE $95 put at $4.00 and sell a 40-DTE $95 put at $5.20. Net credit of the roll = $5.20 − $4.00 = $1.20. Total credit collected = $2.00 + $1.20 = $3.20. New break-even = $95 − $3.20 = $91.80. You keep the full $95 exposure for 40 more days.
Option 3: roll down and out. Buy back at $4.00, sell a 40-DTE $92 put at $3.60. Net debit = $3.60 − $4.00 = −$0.40. Total credit = $2.00 − $0.40 = $1.60. New break-even = $92 − $1.60 = $90.40. The strike is $3 safer, but the maximum remaining gain is only $1.60.
| Choice | Total credit | Short strike | Break-even | Days of exposure left |
|---|---|---|---|---|
| Close | −$2.00 realised | none | n/a | 0 |
| Roll out | $3.20 | $95 | $91.80 | 40 |
| Roll down and out | $1.60 | $92 | $90.40 | 40 |
Both rolls keep you short a put on a share that has just fallen 7%; the question is whether you want that trade today. Profit-target example: had the share stayed at $100, "close at 50% of credit" would have meant buying the put back at $1.00 and booking $100 per contract.
Common mistake
Practice activity
You sold a call credit spread for $1.40 (short $110 call, long $115 call, 35 DTE). With 12 DTE the share has rallied and the spread now costs $3.10 to close. A roll to the same strikes 30 days later can be done for a net credit of $0.70. Calculate: (a) the realised loss if you close; (b) the total credit and maximum loss per spread after the roll; (c) write one sentence on whether the roll changes the strike risk.
Show solution
(a) Close: $1.40 − $3.10 = −$1.70 per share (−$170 per spread).
(b) After the roll: total credit = $1.40 + $0.70 = $2.10. Maximum loss = width − total credit = $5.00 − $2.10 = $2.90 per share ($290 per spread). Before the roll it was $5.00 − $1.40 = $3.60, so the roll reduced the maximum loss but added 30 days of exposure.
(c) The strikes are unchanged, so the strike risk is the same; the roll only collects more time value and extends the trade.
Limitations: real rolls pay two bid-ask spreads and two sets of fees, which reduce the net credit.
Key takeaways
- A roll is a close plus a new open; judge it by total credit, new break-even and whether you would open the new trade today.
- Rolling out buys time, rolling down or up buys distance; both together often cost credit.
- Write profit targets (for example 50% of credit) and time exits (for example around 21 DTE) before entry.
- Close rather than roll when the original thesis is gone or when the roll needs a debit.
Next step
Lesson 10 explains what happens when you do not close in time: assignment, exercise, expiration mechanics, pin risk and weekend risk.
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