Modelling Covered Calls

Overview

Covered call calculators help you estimate income from selling calls against stock you own. Model different strike prices and expirations to find the optimal balance between premium collected and upside cap. Before entering a position, review the options chain for real-time bid-ask spreads and open interest. Combine your covered call analysis with risk-sizing techniques and check the dividend calendar to account for early-assignment risk around ex-dividend dates.

Key Takeaways

• Covered calls generate income but cap upside at the strike price
• Higher-strike calls offer more upside but smaller premiums
• Time decay (theta) works in your favour as the call seller
• Calculators show how assignment at expiration affects overall return

Practical Tips

• Run scenarios at 30, 45, and 60 days to expiration to optimise theta decay
• Compare static return (if not assigned) to called-away return (if assigned)
• Factor in dividend dates — early assignment risk increases before ex-div