Buying back and re-selling to buy time — and the honest test for whether it's helping.
2 min read
Rolling is closing an option you're short and opening another one in the same motion — usually further out in time, sometimes at a different strike. The point is to buy yourself time without realising a loss, ideally while collecting more premium.
It is genuinely useful and it is also the most over-used move in options. The difference is entirely whether the roll changes the position's odds or just its date.
| Roll | What changes | Typical use |
|---|---|---|
| Out | Later expiration, same strike | The thesis is intact, you just need more time |
| Out and down (puts) | Later and lower strike | Reduce assignment risk on a put going against you |
| Out and up (calls) | Later and higher strike | Keep shares that have run past your call strike |
Rolling a put out and down
You sold a 30-day $50 put for $1.20. Stock is now $47 with a week to go; the put is worth $3.10.
Buy it back: −$310. Realised so far: $120 − $310 = −$190.
Sell a new 45-day $48 put for $2.60: +$260.
Net credit on the roll: $2.60 − $3.10 = −$0.50, a small debit.
You've lowered the strike by $2 and bought 45 days, for $50. Total premium collected on the cycle is now $3.80 against a $48 strike.
Rolling for a credit is not the same as rolling profitably
It's easy to always collect a credit — just roll far enough out. The real questions are whether you'd open this new position today at this price, and whether the capital would do better somewhere else. If the answer to either is no, the roll isn't a strategy, it's a way of not writing down a loss. A position rolled four times is usually a position that should have been closed once.
The clearest signal to stop rolling is a change in the reason you were there. If you sold the put because you wanted to own the stock at $50, and you now don't want to own it at $44, no roll fixes that. Take the loss and redeploy.
Run the numbers: CSP Take-Profit Calculator
Whether closing at 25/50/75% actually beats holding — and the last day it still does.
Educational only
Nothing here is investment, financial, or tax advice. Options carry risk, including losing more than the premium collected, and the examples use round numbers to show the mechanics rather than to suggest a trade. Read risk and position sizing before putting real money behind any of it.
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The part that decides whether a bad month is annoying or account-ending.