Not every stock is good for covered calls. Some look attractive because of fat premiums — but that premium is elevated for a reason, and the reason usually means higher risk.
Here are five categories of stocks that consistently hurt covered call returns — and how to spot them before you trade.
1. Why are stocks near earnings dangerous for covered calls?
High riskSelling a covered call that spans an earnings date is the most common beginner mistake. The premium looks fat because IV is elevated — but that elevated IV reflects real uncertainty. The stock can move 5-15% in either direction after the report.
Example
NVDA is at $800. You sell the $830 call for $18 ($1,800) before earnings. NVDA drops to $720 — an $8,000 unrealized loss that the $1,800 premium barely dents. Or it jumps to $900 and your shares get called away, missing $7,000 in upside.
How ThetaScout helps
ThetaScout places a prominent earnings warning on any contract whose expiration spans a known earnings date. You'll see it before you trade.
2. Should I sell covered calls on meme stocks or volatile names?
High riskMeme stocks, biotech penny stocks, and recent IPOs offer huge premiums — and that's the trap. A $2.00 premium on a $15 stock looks like 13% monthly. But the stock can drop 40% on a Reddit post or an FDA rejection, wiping out months of income in a day.
Example
You sell a covered call on a $20 meme stock for $3.00 ($300 per contract). The premium yield is incredible. Then the stock drops to $12 on no real news — you've lost $800 on the shares and only collected $300. Three months of income gone in a day.
How ThetaScout helps
ThetaScout's stock selection methodologies prioritize quality companies with stable fundamentals. The Find Stocks page scores 500+ stocks across 10 methodologies — speculative stocks don't pass the filters.
3. What happens when option liquidity is too low?
Medium riskIf nobody's trading that option contract, the bid-ask spread will be wide. You'll pay more to enter (worse premium) and more to exit (higher cost to buy back). On a $2.00 option, a $0.40 spread costs you 20% of your income just in execution.
Example
A small-cap stock shows a $2.00 bid and $2.80 ask on the call you want. That $0.80 spread means you're giving up $80 per contract just to get filled. On a liquid stock like AAPL, the same premium might have a $0.03 spread — saving you $77.
How ThetaScout helps
ThetaScout flags contracts with open interest below 50 and shows bid-ask spreads in the screener. If liquidity is poor, you'll see a warning icon.
4. What if I only want the stock for the premium?
Fundamental riskThe most insidious mistake. You see a stock with amazing option premiums and buy shares just to sell calls — even though you'd never hold the stock otherwise. Covered calls don't protect you from a declining stock; they just cushion the fall slightly. If you want a strategy that accounts for downside entry, look at the wheel strategy — but even then, you need to genuinely want the stock.
Example
You buy 100 shares of a stock at $50 purely because the covered call premium is $4/month (8% monthly!). The stock drops to $35 over three months. You collected $1,200 in premiums but lost $1,500 on the stock. Net result: -$300 and you're stuck holding a stock you don't believe in.
How ThetaScout helps
This is a judgment call — no tool can make it for you. But the principle is simple: only sell covered calls on stocks you'd hold regardless. If you wouldn't buy the stock without the option premium, don't buy it for the premium.
5. Can ex-dividend dates cause early assignment?
Lower riskIf you sell an in-the-money call and the stock goes ex-dividend before expiration, the call buyer may exercise early to capture the dividend. You keep the premium and sell at the strike price — not terrible — but you miss the dividend and sell sooner than planned.
Example
AAPL goes ex-dividend ($0.96/share) the day before your call expires. Your $235 call is in-the-money at $238. The call buyer exercises early to capture the dividend. You sell at $235, keep the premium, but miss the $96 dividend.
How ThetaScout helps
ThetaScout flags ex-dividend dates with a warning icon on the contract. You can factor it into your decision — or simply avoid selling calls that expire right after an ex-date.
So what's the simplest rule for picking covered call stocks?
Only sell covered calls on stocks you'd hold without the option premium. If the premium is the only reason you're considering the stock, walk away. The best covered call stocks are quality companies you believe in — the premium is a bonus, not the thesis. Once you have the right stock, choosing your strategy determines how much income vs. upside you keep.