Best Covered Call Screener — Turn Your Stocks Into Monthly Income

Covered Call Finder Tool Explained: How to Screen for the Best Covered Call Opportunities

What a Covered Call Finder Tool Actually Does

A covered call finder tool is a screener that scans the options market and surfaces specific contracts where the premium income, strike price, and expiration line up with your goals. You plug in a stock you own — or a list of stocks — and the tool ranks available call options by metrics like annualized return, delta, or implied volatility. That saves you from manually flipping through hundreds of option chains one ticker at a time.

Most retail traders discover covered calls and then spend hours in a brokerage's option chain trying to figure out which strike and expiration to sell. A finder tool collapses that research into a single sorted table. Instead of guessing, you see the numbers side by side: premium collected, breakeven price, probability of the option expiring worthless, and what your annualized yield would look like if you repeated the trade every month.

The Core Filters That Actually Matter

Not every filter in a screener is worth your attention. These five are the ones that move the needle for covered-call sellers.

**Annualized Return on the Premium** — This normalizes premium across different expiration lengths. A $1.20 premium on a 14-day option beats a $1.50 premium on a 45-day option when you annualize both. The formula is: (Premium ÷ Stock Price) × (365 ÷ Days to Expiration) × 100.

**Delta** — Delta tells you roughly how likely the option is to finish in the money. A delta of 0.20 means the market is pricing about a 20% chance of assignment. Most income-focused sellers target deltas between 0.15 and 0.35. The Options Industry Council (OIC) describes delta as one of the primary risk measures every options trader should understand before placing a trade.

**Implied Volatility (IV)** — Higher IV means fatter premiums. But high IV often signals that the market expects a big move in the stock — which cuts both ways. A finder tool lets you sort by IV so you can compare premium richness across your holdings.

**Bid-Ask Spread** — A wide spread means you'll likely sell at a price well below the midpoint. FINRA reminds retail traders that illiquid options can result in significant slippage. Filter for contracts where the spread is no more than 10–15% of the option's midpoint price.

**Days to Expiration (DTE)** — Most covered-call sellers focus on 21–45 DTE, where theta decay accelerates without requiring you to tie up the position for months. A good finder tool lets you set a DTE range so you only see contracts in your preferred window.

Worked Example: Using a Finder Tool on AAPL

Say you own 100 shares of Apple (AAPL) currently trading at $213.50. You open your covered call finder tool, enter AAPL, and set filters for 21–35 DTE, delta between 0.20 and 0.30, and a minimum annualized return of 12%.

The tool surfaces the following contract: AAPL $220 Call expiring in 28 days, bid $2.10, ask $2.25, midpoint $2.18, delta 0.24, implied volatility 28%.

Here is what the numbers look like before you place the trade:

— **Premium collected (at midpoint):** $218 per contract (100 shares × $2.18) — **Annualized return:** ($2.18 ÷ $213.50) × (365 ÷ 28) × 100 = roughly 13.3% — **Breakeven on the downside:** $213.50 − $2.18 = $211.32 — **Upside cap:** Your shares get called away at $220 if AAPL closes above that price on expiration Friday. You keep the $218 premium plus the $6.50 per share gain from $213.50 to $220, for a total of $868 on the position. — **Probability of expiring worthless (approx.):** 1 − 0.24 delta ≈ 76%

Without the finder tool, you would have had to open AAPL's full option chain, scroll through dozens of strikes and expirations, and calculate all of this manually. The screener does it in seconds and lets you compare this contract against the $215 strike or the 35-DTE alternatives in the same view.

What Are the Real Risks You Need to Understand First?

A finder tool makes it easy to spot attractive premiums, but it cannot protect you from the risks built into the strategy itself. Here are the ones that matter most.

**Capped upside.** If AAPL jumps from $213.50 to $235 before expiration, you still sell at $220. You miss $15 per share of gains. The premium you collected does not come close to covering that gap. This is the most common frustration new covered-call sellers run into.

**The stock can still fall hard.** Selling a call brings in $2.18 of downside protection. If AAPL drops 15%, your $218 in premium barely dents a $3,202 loss on the shares. The SEC has published investor education materials noting that covered calls reduce — but do not eliminate — downside risk.

**Assignment can happen early.** American-style options (which cover most US-listed stocks) can be exercised at any time before expiration, not just on the last day. The OIC explains that early assignment most often happens when a call goes deep in the money or just before an ex-dividend date. A finder tool will not flag this risk for you automatically — you need to check dividend dates yourself.

**Tax treatment is not simple.** The IRS treats covered call premiums as short-term capital gains in most cases, regardless of how long you have held the stock. More importantly, selling a call that is too deep in the money can suspend the holding period on your shares, potentially converting a long-term gain into a short-term one. Canadian investors should note that the CRA has its own rules on how option premiums are treated as income versus capital. Consult a tax professional before trading covered calls in a taxable account.

**Liquidity risk in the screener results.** A tool might surface a contract with a 20% annualized return, but if the bid-ask spread is $0.80 wide on a $1.00 option, that return evaporates the moment you try to fill the order. Always check the spread before acting on any screener result.

How to Read a Finder Tool's Output Without Getting Fooled

Screeners rank options by the metrics you choose, and that ranking can mislead you if you are not careful.

Sorting purely by highest premium will push you toward stocks with the most volatile option chains — often because earnings are coming up, a merger is pending, or the stock has been unusually choppy. High IV means high premium, but it also means the market is pricing in a real chance of a large move. Chasing the top of a premium-sorted list without checking why IV is elevated is one of the most common mistakes covered-call beginners make.

A better approach: sort by annualized return, then filter out any result where IV is more than 50% above its 52-week average IV. This removes the event-driven outliers and leaves you with stocks where the premium is elevated for structural reasons — like a generally volatile sector — rather than a one-time catalyst that could blow through your strike.

Also check the open interest and volume columns. A contract with 50 open interest and zero volume today is going to be hard to close before expiration if you change your mind. FINRA guidance on options trading emphasizes that liquidity matters as much as price when evaluating any options contract.

Setting Up Your Finder Tool for a Repeatable Monthly Process

The real value of a covered call finder tool is not finding one great trade — it is building a repeatable process you run every month on the stocks you hold.

Here is a simple workflow that takes about 20 minutes:

1. **Enter your holdings.** Input every stock where you own at least 100 shares. Some tools let you import a portfolio directly from your brokerage.

2. **Set your filters.** Use 21–45 DTE, delta 0.15–0.30, minimum annualized return of 10%, and maximum bid-ask spread of 15% of midpoint.

3. **Check the calendar.** Before acting on any result, look up the next earnings date and ex-dividend date for that stock. Avoid selling calls that expire after an earnings announcement unless you are comfortable with the extra volatility risk.

4. **Compare two or three strikes.** The finder tool will show you multiple strikes for the same expiration. Compare the $220, $222.50, and $225 strikes on AAPL side by side. The higher strike gives you more room to run but less premium. Pick the one that fits your outlook.

5. **Place a limit order at the midpoint.** Never use a market order on options. Start at the midpoint of the bid-ask spread and work down by $0.05 increments if you do not get filled.

6. **Log the trade.** Record the premium, strike, expiration, and your cost basis on the shares. This makes tax reporting cleaner and lets you track your actual annualized returns over time against what the screener projected.

What a Finder Tool Cannot Do for You

A covered call finder tool is a research accelerator, not a decision-maker. It cannot tell you whether a stock is a good long-term hold. It cannot predict whether the company will miss earnings next week. It does not know your tax situation, your cost basis, or whether you actually want to sell your shares at the strike price.

The tool surfaces opportunities. You still have to decide whether the underlying stock is one you are comfortable owning through a downturn, because that is exactly what covered-call selling requires. If you would panic-sell NVDA at $400 after buying it at $480, selling covered calls on it is not going to fix that problem — it will just add complexity to an already stressful situation.

Use the finder tool to narrow your list. Use your own judgment — and a tax professional for the tax questions — to make the final call.

What is a covered call finder tool and how does it work?

A covered call finder tool is a screener that scans available options contracts on stocks you own and ranks them by metrics like annualized premium return, delta, and implied volatility. You set filters for expiration range, strike distance, and minimum yield, and the tool returns a sorted list of contracts that match. It replaces the manual process of scrolling through individual option chains ticker by ticker.

What filters should I use in a covered call screener?

The most useful filters are days to expiration (21–45 DTE is the most common range), delta (0.15–0.30 for out-of-the-money calls), annualized return on premium, and bid-ask spread width. Keeping the spread below 15% of the option's midpoint price helps ensure you can actually fill the order near the price the screener shows.

Can a covered call finder tool tell me which strike to sell?

No — the tool shows you the numbers for multiple strikes, but the choice depends on your personal goals. A lower strike (closer to the current stock price) gives you more premium but caps your upside sooner and raises assignment risk. A higher strike gives you more room for the stock to run but pays less premium. The Options Industry Council (OIC) recommends understanding your own risk tolerance before selecting a strike.

Are covered call premiums taxed as income or capital gains?

In the US, the IRS generally treats covered call premiums as short-term capital gains, regardless of how long you have held the underlying stock. Selling a deep-in-the-money call can also suspend your stock's holding period, which may affect whether gains on the shares are taxed at short-term or long-term rates. Canadian investors should check CRA guidance, as the tax treatment of option premiums differs from US rules. Always consult a qualified tax professional before trading covered calls in a taxable account.

What annualized return should I expect from a covered call strategy?

Most covered-call sellers targeting out-of-the-money strikes with 21–45 DTE aim for 10–20% annualized return on premium, depending on the volatility of the underlying stock. Higher-volatility stocks like NVDA will offer richer premiums than lower-volatility names like SPY, but they also carry more risk of a large price move that overwhelms the premium collected. The screener's projected return assumes you can fill at the midpoint and that the trade is repeated consistently, neither of which is guaranteed.

What happens if my covered call gets assigned early?

Early assignment means the option buyer exercises their right to buy your shares before expiration, which can happen at any time with American-style options. The OIC notes this most often occurs when the call is deep in the money or just before an ex-dividend date. If assigned early, your shares are sold at the strike price and you keep the premium already collected, but you lose any further upside in the stock.