How to Pick the Right Strike Price
The strike price of an option is the price at which a put or call option can be exercised. It is also known as the exercise price. Picking the strike price is one of two key decisions (the other being time to expiration) an investor or trader must make when selecting a specific option.
Strike Price Considerations
Assume that you have identified the stock on which you want to make an options trade. Your next step is to choose an options strategy, such as buying a call or writing a put. Then, the two most important considerations in determining the strike price are your risk tolerance and your desired risk-reward payoff.
Risk Tolerance
Let’s say you are considering buying a call option. Your risk tolerance should determine whether you chose an in-the-money (ITM) call option, an at-the-money (ATM) call, or an out-of-the-money (OTM) call. An ITM option has a higher sensitivity—also known as the option delta—to the price of the underlying stock. If the stock price increases by a given amount, the ITM call would gain more than an ATM or OTM call. But if the stock price declines, the higher delta of the ITM option also means it would decrease more than an ATM or OTM call if the price of the underlying stock falls. However, an ITM call has a higher initial value, so it is actually less risky. OTM calls have the most risk, especially when they are near the expiration date. If OTM calls are held through the expiration date, they expire worthless.
Risk-Reward Payoff
Your desired risk-reward payoff simply means the amount of capital you want to risk on the trade and your projected profit target. An ITM call may be less risky than an OTM call, but it also costs more. If you only want to stake a small amount of capital on your call trade idea, the OTM call may be the best, pardon the pun, option. An OTM call can have a much larger gain in percentage terms than an ITM call if the stock surges past the strike price, but it has a significantly smaller chance of success than an ITM call. That means although you plunk down a smaller amount of capital to buy an OTM call, the odds you might lose the full amount of your investment are higher than with an ITM call. With these considerations in mind, a relatively conservative investor might opt for an ITM or ATM call. On the other hand, a trader with a high tolerance for risk may prefer an OTM call. The examples in the following section illustrate some of these concepts.