Options Pricing

Covered Call Return

Income and return from selling covered calls

What is Covered Call Return?

A covered call involves owning 100 shares of stock and selling a call option against that position. The premium received immediately reduces the cost basis of the stock and generates income. In exchange, the upside is capped at the strike price. Covered calls are popular with income-focused investors and are one of the most conservative options strategies, approved for retirement accounts. The key metrics are: premium income as a percentage of stock value, the maximum return if the stock is called away, and the downside protection provided by the premium. A well-chosen covered call can significantly enhance total portfolio return in sideways or mildly bullish markets.

Formula

Premium Income Yield = Premium Received / Stock Cost Basis × 100%

Max Return (if called) = (Strike − Cost Basis + Premium) / Cost Basis × 100%

Downside Protection = Premium / Stock Price × 100%

Annualised Yield = Premium Yield × (365 / DTE)

Calculator

Stock Cost Basis ($)Strike Price ($)Premium Received ($)Days to Expiry

How to Use

1
Enter stock cost basis: The price at which you own the 100 shares (or current price if entering fresh).
2
Enter call details: Strike price, premium received, and days to expiration.
3
Review max return: If the stock is called away at the strike, this is your total return on the position.
4
Assess downside protection: The premium provides a cushion: your stock can fall by the premium amount before you are in the red.

Worked Example

Example: Own stock at $150, sell $155 call for $2.50 (30 DTE)

Stock Price

$150

Strike

$155

Premium

$2.50

DTE

Premium yield = 2.50 / 150 = 1.67% for 30 days (≈20% annualised). Max return if called = (155 − 150 + 2.50) / 150 = 5.0%. Downside protection = 2.50 / 150 = 1.67%. Attractive income in a flat-to-mildly-bullish market.