Covered calls get marketed as one of the safest options strategies available. Sell a call against shares you own, collect premium, repeat. What could go wrong?
Quite a bit, actually. The "safe strategy" framing gets traders into real trouble because it obscures what you're actually doing — which is owning 100 shares of stock with full downside exposure, in exchange for a premium that offsets maybe 1-3% of that exposure per month. Here's exactly how traders lose money on covered calls, and what to check before you enter any position.
The Short Answer
Yes, you can lose money on covered calls in two distinct ways. First, the stock drops significantly and the premium you collected doesn't come close to offsetting the loss on the shares. Second, the stock rises sharply past your strike and you miss a large portion of the gain — not a loss in the accounting sense, but an opportunity cost that can be substantial.
Both happen regularly. The first is more painful in dollar terms. The second is more psychologically frustrating because the trade technically "worked" while leaving real money on the table.
The Safe Strategy Myth
The covered call gets described as "safe" because you're selling a call against shares you already own — the call is "covered." You can't lose more than you put in. Compared to selling naked calls (where losses are theoretically unlimited), covered calls are indeed safer.
But "safer than naked calls" is a very low bar. The risk profile of a covered call position is essentially the same as owning the stock outright, with a small premium buffer on the downside and a hard cap on the upside. If the stock drops 40%, you lose 40% minus the premium — which on most covered calls represents 1-3% of the stock price. The premium doesn't protect you. It offsets you. There's a meaningful difference.
Traders who think of covered calls as a risk-reduction strategy tend to make larger position sizes than they should, because they perceive the premium as a safety net. It isn't. It's a small cushion in front of the same full downside risk you'd have just owning the shares.
The Three Scenarios Where You Actually Lose
Scenario 1 — The stock craters and the premium doesn't cover it.
This is the most common real loss. You own 100 shares at $75. You sell the $80 call for $1.50, bringing in $150. The company reports earnings and the stock drops to $55. You've lost $20 per share on the stock position — $2,000 total — and your $150 in premium covers 7.5% of that loss. You're down $1,850 net.
The covered call didn't cause this loss, but it also didn't prevent it. You had full downside exposure on the shares before and after selling the call. The only thing the call changed was adding $150 to your account and capping your upside at $80.
This is why stock selection is the most important decision in covered call writing. A covered call on a stock that drops significantly will generate a real loss regardless of how well-chosen the strike was. The strategy only works on stocks you're genuinely comfortable holding through drawdowns — not stocks you're hoping won't fall.
Scenario 2 — You cap your upside on a big mover.
This one doesn't show up as a loss on your statement but it compounds into real underperformance over time. You own 100 shares at $60. You sell the $65 call for $1.80. The stock reports a blowout quarter and gaps to $85. Your shares get called away at $65. You collected $1.80 in premium plus the $5 gain on the shares — $6.80 per share total, or $680.
If you'd just held the shares without the covered call, you'd have made $25 per share — $2,500 total. The covered call cost you $1,820 in this scenario. The premium you collected was $1.80. The opportunity cost was $23.20 per share.
One occurrence of this is frustrating but manageable. Systematically selling covered calls on your best-performing positions every month — especially in bull markets where quality stocks regularly make large moves — compounds into significant underperformance versus simply holding. This is the hidden cost of covered calls that the "free income" framing never mentions.
Scenario 3 — You sell into earnings without knowing it.
This is the most common and most avoidable covered call mistake. You see a stock with elevated premium, pick a strike that seems safe, sell the call — and then three days before expiration the company reports earnings. The stock gaps down 18% on a bad report. Your call expires worthless (small win) but your shares are now deeply underwater (large loss). The elevated premium that attracted you to the trade existed precisely because the market was pricing in earnings uncertainty. You collected that premium in exchange for taking on the binary event risk — and the event went the wrong way.
Earnings dates are available and verifiable before you sell any covered call. Checking them takes 30 seconds. Not checking them — and accidentally selling a covered call that expires after an earnings announcement — is one of the most expensive 30-second oversights in retail trading.
The Earnings Trap in Detail
This scenario deserves a closer look because it's so common and so preventable.
When a company has earnings coming up, implied volatility on its options spikes — the market is pricing in uncertainty about the outcome. That spike makes the covered call premium look attractive. A stock that normally generates $0.80 in premium on a 30-day call might be generating $2.40 in the week before earnings. That higher premium is not free money. It's compensation for the binary event risk you're taking on.
If the earnings are good and the stock rises above your strike, you get called away — missing the upside from the surprise. If earnings are bad and the stock drops sharply, your call expires worthless but your shares take the hit. The premium you collected on the elevated IV doesn't come close to covering a significant earnings-driven decline.
The solution is simple: verify the earnings date before selling any covered call. If earnings fall inside your expiration window, either choose a different expiration that clears the announcement or consciously decide you're making an earnings trade — size it accordingly and understand what you're taking on.
What Good Covered Call Selection Actually Looks Like
The trades that lose money in covered call writing have identifiable characteristics you can check before you enter. Good covered call selection means verifying four things:
IV rank above 30. You want to sell premium when options are expensive relative to the stock's own history — not when they're cheap. IV rank below 20 means you're selling at the bottom of the range. The premium is thin for the risk you're carrying.
Strike at a price you'd genuinely sell the shares. Your call strike is your effective exit price. If getting called away at that price would feel like a loss — because you think the stock is worth significantly more — the strike is wrong. The covered call should be on shares you'd be comfortable selling at the strike, not shares you're hoping to hold forever.
Historical probability of expiring worthless above 70%. Not just delta — actual back-tested data on how often this stock has stayed below this strike in comparable timeframes. This is the base rate of the trade working. Anything below 65% and you're taking on meaningful assignment risk that the premium may not justify.
Earnings date clear of expiration. Non-negotiable. Verify the date, not just the general earnings season. Companies sometimes move earnings dates by a week or two. Check the confirmed date against your specific expiration before you sell.
Checking all four manually on one ticker takes a few minutes. Doing it across multiple potential positions is where it gets slow. StrikeScan shows you probability of expiring worthless, upcoming earnings flags, and IV rank for every contract — so you're not guessing on strike selection across thousands of tickers. 30 days free at StrikeScan.com.
The Bottom Line
The covered call strategy works. Bad covered call selection is the problem — not the strategy itself. The trades that generate real losses are almost always identifiable in advance: stocks in genuine downtrends, strikes sold on elevated earnings IV without realizing it, premium collected in low-IV environments that doesn't justify the downside exposure carried.
Check the four criteria before every trade. Verify the earnings date every time. Treat the premium as offset, not protection. Do those three things consistently and covered calls become a genuinely useful income strategy. Skip them and you'll periodically wonder how a "safe strategy" managed to generate a significant loss.
Disclosure: I am the founder of StrikeScan, the platform referenced in this article. This is not financial advice.