Covered Call Calculator
A covered call involves owning 100 shares of stock and selling a call option against them. You collect premium income while capping your upside at the strike price. It's one of the most popular options strategies for generating income.
Price it
Practical example
When to use it
- You own 100+ shares and want to generate yield/income against the position
- You are neutral to mildly bullish — willing to cap upside in exchange for premium
- You're happy to sell your shares at the strike price (it becomes your exit plan)
- Implied volatility is elevated — you'd rather sell premium than buy it (covered calls are short vega, short gamma, positive theta)
Risks
- If the stock rips well above the strike, you forfeit the upside above strike + premium (opportunity cost, not a cash loss)
- If the stock drops hard, the premium only cushions a small portion of the stock loss — you still own the shares and bear the full downside
- Strike choice is a tradeoff: ATM calls collect the most premium but cap upside tightly; OTM calls keep room to run but collect less
- Exiting the covered call on a rally can cost more than the premium you collected if IV expanded
The deeper breakdown
How a Covered Call Works
Own 100 shares and simultaneously sell one call option against them. The short call obligates you to sell your shares at the strike if the buyer exercises. In exchange, you collect the call's premium upfront. This is also called a "buy-write" when initiated simultaneously.
Example
You own 100 shares of AAPL at $195 and sell the $205 call for $3.00 per share ($300 total).
Strike Selection
Why Covered Calls Are Popular
They're the most accessible premium-selling strategy — defined-risk (bounded by the share position), no margin needed beyond the shares, and they systematically harvest theta in flat-to-mildly-bullish tape. The primary trap is rolling covered calls for credit on a rally and compounding losses as the stock runs away.
Key Takeaway
Covered calls are a yield enhancement on existing stock, not a directional bet. Best in elevated-IV, range-bound tape. Choose strikes you'd genuinely be happy to sell at, and have a plan for managing if the stock trends hard.
Calculations are theoretical projections from standard pricing models (Black-Scholes), not predictions. Real fills, slippage, dividends, and volatility shifts will cause outcomes to differ. Not investment advice. Full disclaimer.