Calendar & diagonal spreads
How do I manage the back-month leg of a calendar spread after the front-month contract expires worthless?
By Easy Money Scanner · Educational reference · Not investment advice
The short answer
After the front-month option expires worthless, the trader is left holding the long back-month option outright, which can be held, sold for its remaining value, or used as the long leg of a new calendar or diagonal.
How it works
Common follow-up actions include selling a new near-term option against the remaining long leg to continue generating income, effectively rolling into a new calendar or covered-style position.
An example
After the short 30-day call expires worthless, a trader holding the 60-day long call may sell a new 30-day call against it to start another income cycle.
Risk & limitations
The remaining long option still carries full directional and volatility risk on its own; it can lose significant value if the underlying or implied volatility moves adversely before the next decision.
Examples are hypothetical, not trade recommendations. US contract and regulatory references do not automatically apply in Canada. Rules, margin requirements and broker policies can change; confirm them with the relevant authority and your broker.