Vertical spreads
Can I be assigned on the short leg of a vertical spread without my long leg automatically executing?
By Easy Money Scanner · Educational reference · Not investment advice
The short answer
Yes, a trader can be assigned on the short leg of a vertical spread without the long leg automatically exercising, since exercise of the long option is a separate decision usually made by the trader or, in some cases, automatically only if it is sufficiently in the money at expiration.
How it works
This can leave a trader with an unwanted stock position overnight or over a weekend if assignment occurs before they can exercise or close the long leg themselves.
An example
A short put assigned on a Friday afternoon can leave a trader holding shares over the weekend even though the protective long put remains open until Monday.
Risk & limitations
OCC disclosures note automatic exercise thresholds and timing vary by broker and clearing firm, so traders should confirm their broker's specific exercise policies.
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.