Stock Option Calculators | |||||
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Calendar Call Spread Calculator
The Calendar Call Spread Calculator can be used to chart theoretical
profit and loss (P&L) for a calendar call position. Clicking on
the chart icon 
on
the Calendar Call Spread screener loads the strategy calculator with
the selected calendar call.
A calendar call spread consists of two calls with the same strike price but different expirations. The long call expires after the short call. The position will profit if the underlying security price does not change much. The value of the short leg will decay faster than the value of long leg. The long leg can be sold when the short leg expires.
In this example, the green triangles 
show the break-even points as of August 20, when the
near term leg expires. General Help with the calculator can be found
here.