How to Pick the Right Strike Price for a Covered Call

The Short Answer: Match Your Strike to Your Goal

The right strike price for a covered call depends on one question: how much of your stock's upside are you willing to give up in exchange for income today? Sellers who want maximum premium pick strikes close to the current stock price. Sellers who want to keep more upside pick strikes further above it. Everything else in strike selection flows from that single tradeoff.

The Options Industry Council (OIC) defines a covered call as selling a call option against shares you already own. When the buyer exercises, you sell your shares at the strike price — no higher, no matter where the stock trades. That ceiling is the core risk you are accepting every time you sell a call.

The Three Strike Zones Every Covered-Call Seller Should Know

Options traders group strikes into three zones relative to the current stock price.

**In-the-money (ITM):** The strike is below the current stock price. Example: stock at $195, strike at $190. ITM calls pay the fattest premiums but cap your gain immediately and carry a high chance of assignment. The IRS and CRA both treat the sale proceeds as the strike price plus premium received — so tax math matters here.

**At-the-money (ATM):** The strike is right at or very near the current price. Example: stock at $195, strike at $195. ATM calls offer a solid premium and are the most commonly traded. Assignment risk is roughly 50/50 at expiration.

**Out-of-the-money (OTM):** The strike is above the current price. Example: stock at $195, strike at $205. OTM calls pay less premium but let the stock run further before you get called away. Most income-focused retail sellers live in this zone.

Using Delta as a Practical Strike Selector

Delta is the single most useful number for picking a strike. For a call option, delta runs from 0 to 1.00. A delta of 0.30 means the option moves roughly $0.30 for every $1.00 the stock moves — and it also approximates the probability that the option expires in-the-money, according to CBOE educational materials.

A common retail framework: - **Delta 0.40–0.50 (ATM):** High income, high assignment risk. Good when you are neutral-to-slightly-bullish and would not mind selling at that price. - **Delta 0.25–0.35 (light OTM):** Balanced income and upside. The most popular zone for monthly covered-call programs. - **Delta 0.10–0.20 (deep OTM):** Lower income, much more room to run. Useful when you are bullish and mainly want a small yield boost.

You can find delta on any standard options chain at your broker. FINRA reminds investors that options involve risk and are not suitable for all investors — always confirm your account is approved for options trading before placing a trade.

Worked Example: Selling a Covered Call on AAPL

Let's say you own 100 shares of Apple (AAPL) and the stock is trading at $213.00. You want to generate income over the next 30 days without giving up too much upside. Here is how three different strikes compare on a typical monthly expiration cycle.

**Strike $210 (ITM, delta ~0.58)** Premium collected: ~$6.40 per share, or $640 per contract. Your effective sale price if assigned: $210 + $6.40 = $216.40. Downside: you are already in-the-money, so assignment is likely. You cap your gain at $216.40 and you give up any rally above that.

**Strike $215 (ATM, delta ~0.48)** Premium collected: ~$4.10 per share, or $410 per contract. Effective sale price if assigned: $215 + $4.10 = $219.10. Downside: roughly a coin-flip chance of assignment. You keep the stock if AAPL stays below $215 at expiration.

**Strike $220 (OTM, delta ~0.32)** Premium collected: ~$2.35 per share, or $235 per contract. Effective sale price if assigned: $220 + $2.35 = $222.35. Downside: lower income, but AAPL has to climb more than 3.3% before you get called away.

For a long-term AAPL holder who does not want to trigger a taxable sale, the $220 strike is often the practical choice. The IRS treats assignment as a sale of the underlying shares in the tax year it occurs — a detail the SEC's investor education materials flag as a common surprise for first-time covered-call sellers. Canadian investors should note that the CRA applies similar treatment under its capital gains rules.

Note: option premiums shown are illustrative and based on typical 30-day implied volatility for AAPL. Always check your live options chain for current quotes.

What Risks Are You Actually Taking When You Pick a Strike?

Strike selection is not just an income decision — it is a risk decision. Here are the three risks that change depending on which strike you choose, and they deserve equal weight to the income side of the trade.

**Upside cap risk.** Once you sell the call, your maximum gain on the stock is locked at the strike price plus premium. If AAPL jumps from $213 to $240 after strong earnings, you still sell at your strike. You do not participate in that extra $20+ of appreciation. The higher your strike, the more upside you preserve.

**Assignment and tax risk.** When your call expires in-the-money, your broker will automatically sell your shares at the strike price. This is a taxable event. If you have held the shares less than one year, the gain is short-term. The IRS also has specific rules about how selling a deep ITM call can disqualify the holding period for long-term capital gains treatment — a nuance the OIC covers in detail in its covered-call tax materials. Canadian investors face parallel CRA rules on adjusted cost base.

**Opportunity cost risk.** Selling a covered call does not protect you from a stock decline. If AAPL drops from $213 to $185, your $235 in premium from the OTM call offsets only a small portion of that loss. The premium is income, not a hedge. FINRA's options disclosure document (the ODD) makes this explicit: covered calls reduce cost basis but do not eliminate downside risk.

How Expiration Date Interacts With Strike Choice

Strike and expiration are two dials on the same radio — you cannot tune one without affecting the other. Longer expirations pay more total premium but give the stock more time to move through your strike. Shorter expirations pay less but reset faster.

A practical rule of thumb used by many retail income traders: target the 30-to-45-day expiration window. At this range, time decay (theta) is accelerating, which benefits the seller. CBOE data on index options consistently shows that theta decay is fastest in the final 30 days before expiration.

If you are selling weekly calls, you will need to go closer to ATM to collect meaningful premium. If you are selling 60-day calls, you can afford to go further OTM and still collect a reasonable yield. Match the expiration to your income target, then pick the strike that fits your assignment comfort level within that window.

A Simple Decision Framework Before You Place the Trade

Before you enter any covered call, answer these four questions. They take less than two minutes and will save you from most beginner mistakes.

1. **Would I be happy selling this stock at this strike price today?** If the answer is no, go higher or do not sell the call at all.

2. **What is the annualized yield on this premium?** Divide the premium by your cost basis, multiply by (365 / days to expiration). A 0.5% monthly yield is roughly 6% annualized — a reasonable benchmark for a conservative OTM program.

3. **Is there an earnings announcement before expiration?** Implied volatility spikes before earnings, inflating premiums. But the stock can move 10–15% in either direction. Many experienced sellers avoid holding a covered call through earnings unless they are fully prepared to be assigned or to see the stock drop sharply.

4. **Have I checked my tax situation?** If your shares have a large unrealized gain, assignment triggers a taxable event. Confirm with a tax professional whether your holding period or cost basis creates any complications under IRS or CRA rules before you sell.

What strike price should I sell for a covered call if I'm a beginner?

Most beginners do well starting with an out-of-the-money strike at a delta of 0.25 to 0.35, roughly 3–7% above the current stock price. This zone gives you meaningful premium while leaving room for the stock to appreciate before you risk assignment. As you get comfortable with the mechanics, you can experiment with strikes closer to the money.

How far out of the money should a covered call strike be?

A common starting point is 3–5% above the current stock price on a 30-to-45-day expiration. That range typically corresponds to a delta of 0.25–0.35, which the CBOE describes as roughly a 25–35% probability of expiring in-the-money. How far you go depends on your income target and how much you want to protect your upside.

What happens if the stock price goes above my covered call strike?

If the stock closes above your strike at expiration, your shares will almost certainly be called away — meaning your broker sells them at the strike price. You keep the premium you collected, but you do not participate in any gains above the strike. This is called assignment, and it is a taxable sale of your shares under IRS and CRA rules.

Is it better to sell in-the-money or out-of-the-money covered calls?

It depends on your goal. In-the-money calls pay more premium and provide more downside cushion, but assignment is likely and you cap your upside immediately. Out-of-the-money calls pay less but let the stock run further and are less likely to result in assignment. Most retail income traders prefer OTM calls because they want to keep their shares while still collecting yield.

Can I lose money selling covered calls?

Yes. The premium you collect reduces your cost basis but does not protect you from a large drop in the stock price. If you own 100 shares of a stock that falls 20%, the covered call premium offsets only a small portion of that loss. FINRA's options disclosure document is clear that covered calls are not a hedging strategy — they are an income strategy on shares you already own.

Does selling a covered call affect my long-term capital gains holding period?

It can. The IRS has rules that may suspend or reset your holding period if you sell a deep in-the-money covered call that is not considered a 'qualified covered call.' If your shares are close to qualifying for long-term capital gains treatment, selling an ITM call could cost you the lower tax rate. The OIC publishes detailed guidance on qualified covered calls, and consulting a tax professional before selling ITM calls on appreciated shares is strongly recommended.