Theta Calculator
Theta is the meter running on your premium. It charges you a little every day early on — and a lot every day near the end.
Position inputs
Everything updates live as you type.
Optional, label only
$
Must be a positive number
$
Must be a positive number
DTE cannot be negative
Enter your theta (e.g. -0.045)
Enter your strike, stock price, DTE, theta, and contract count to see your decay curve and schedule.