Covered call — income from shares you already own
Sell a call against 100 shares you hold to collect premium. The premium cushions small drops, but upside is capped at the strike if the stock rallies.
4 min read
A covered call is a strategy where you sell a call against 100 shares you already own. The shares “cover” the call — hence the name. It’s the most basic way to generate extra income (premium) from a stock you hold.
Walk through how selling the call changes your payoff.
What you get and what you give up
- ·You get: the premium, immediately. A small drop in the stock is cushioned by it, so your break-even sits below your cost.
- ·You give up: upside above the call strike. If the stock rallies past it, the shares are “called away” at the strike and your gain is capped.
When to use it
- ·When you expect the stock to trade sideways or rise mildly.
- ·When you want some downside cushion plus steady premium income.
- ·Not ideal if you expect a strong rally — capping the upside works against you.
The key: a covered call earns “rent” on shares you already own, in exchange for giving up the top of a big rally.
In NOSKA
NOSKA backtests combinations of call strike, expiry, and entry conditions, comparing which covered call produced better risk-adjusted returns than simply holding the shares.
Try a backtest yourself
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