Calculation and mechanics
For a position with a common expiration, the profit or loss of all legs is calculated for possible prices of the underlying at expiration. The lowest value of this profile is the max loss.
For a short put, the maximum loss occurs at an underlying price of zero: strike minus premium collected, multiplied by the contract multiplier. For a bull put spread, the maximum loss equals the strike difference minus the net credit. For an uncovered short call there is no fixed upper bound on the loss because the price of the underlying can theoretically rise without limit.
For strategies with multiple expirations, the maximum loss cannot always be derived from a single static expiration profile and the calculation becomes correspondingly more complex.
Distinction
The max loss describes a theoretical payoff profile, not the running daily profit or loss. Before expiration, time value and implied volatility affect the market value of the position. Actual results can additionally deviate from the theoretical profile through execution prices, fees, early assignments and other market effects.
The sold premium is to be viewed separately: for simple credit strategies it is the maximum profit, for more complex structures not necessarily.
Related terms
- Sold Premium (Short premium, sold option premiums)
- Hedge Budget (Hedge cost ratio, hedge budget share)
- Option Strategy (Spread, Iron Condor, Covered Call)
- Contract Multiplier (Multiplier)
- Expiration (Expiry)
All market and analytical information is provided for educational and analytical purposes only and does not constitute investment advice or a trading recommendation.