Of the three numbers on every option, the strike price is the one everything else hangs off. Get comfortable with it and the rest falls into place.
The strike is just the price you and the other side shook hands on. Nothing fancier than that.
The handshake price
Say you agree to buy your neighbor's car for $20,000 next month, no matter what used-car prices do in between. That $20,000 is the strike. It is the price locked into the deal, the number your right is measured against. If the car is suddenly worth $25,000, your $20,000 strike looks great. If it is worth $16,000, your right to buy at $20,000 is useless, and you would simply walk away.
Strikes come in a ladder
For any stock, the market offers a whole ladder of strikes, spaced above and below the current price. A stock at $50 might offer strikes at $45, $47.50, $50, $52.50, and $55. You pick the rung that matches the deal you want to make.
Above, at, or below the price
Where your strike sits relative to the stock's actual price decides almost everything about the option: what it costs, how likely it is to pay off, and how much room the stock has to move. A strike far out of reach is cheap but unlikely. A strike close to the price is pricier but more likely to matter. That one relationship, strike versus price, is what the next few chapters unpack.
When you sell options for income, the strike is your biggest lever. Closer to the price pays you more but gives the stock less room. Further away pays less but is safer. That trade-off is the whole game.
- The strike is the locked-in price your option lets you buy or sell at.
- Every stock offers a ladder of strikes above and below its current price.
- Where the strike sits versus the stock price drives the option's cost, odds, and risk.
This article is educational and is not investment advice. Options involve risk, including the possible loss of principal. Examples and premiums shown are illustrative and change with the market. Practice with paper trading before committing real money.