Case Study: Covered Calls on a Value Stock

Theory is useful, but nothing beats walking through a real trade step by step. This case study shows exactly how a covered call works on a value stock, from identifying the opportunity to counting the income collected. By the end, you'll understand how patient investors turn ownership into cash flow without selling their best companies.
TL;DR
- Identify a quality company trading near or below fair value that you're happy to hold long-term
- Sell calls above your purchase price to collect premium while keeping upside potential
- Calculate your yield by comparing premium collected to capital at risk
- Accept assignment or roll depending on whether the stock exceeds your strike at expiration
- Repeat monthly to compound income on stocks you already own
Setting the Stage: Finding the Right Stock
For this case study, imagine a fictional company called SteadyFlow Inc., a consumer goods business trading at $50 per share. You've analyzed the company using Wall St Yardie and determined fair value sits around $60. The company earns $4 per share annually, giving it a P/E of 12.5 and an earnings yield of 8%.
SteadyFlow has modest debt, consistent cash flow, and a 20-year track record of profitability. This is the kind of boring, wonderful company value investors love. You bought 100 shares at $50, committing $5,000 in capital.
Now you want income while you wait for the market to recognize the company's true value.
The Covered Call Setup
With SteadyFlow trading at $50, you look at call options expiring in 30 days. Here's what you see:
| Strike Price | Premium | Annualized Yield |
|---|---|---|
| $52.50 | $0.80 | ~19% |
| $55.00 | $0.40 | ~10% |
| $57.50 | $0.15 | ~4% |
The $52.50 strike offers the fattest premium but caps your upside just 5% above current price. The $55 strike gives you 10% room to run while still collecting meaningful income. The $57.50 strike provides maximum upside potential but minimal premium.
For this case study, let's choose the $55 strike. You sell one call contract (controlling 100 shares) and collect $40 in premium ($0.40 × 100 shares). Your brokerage account immediately shows $40 credited.
Understanding the Numbers
Let's break down what this trade means for your returns.
Premium collected: $40
Capital at risk: $5,000 (your 100 shares at $50)
Monthly yield: $40 ÷ $5,000 = 0.8%
Annualized yield: 0.8% × 12 = ~10%
This 10% annualized yield from option premiums comes on top of any dividends SteadyFlow pays and any capital appreciation up to $55. Compare that to most savings accounts paying less than 5%.
But here's the key insight: you're not taking speculative risk. You already own a quality company trading below fair value. The covered call simply monetizes your patience while waiting for the market to catch up.
Scenario 1: Stock Stays Flat
Thirty days pass, and SteadyFlow still trades at $50. Your call option expires worthless. Nobody exercises the right to buy your shares at $55 when they can buy them in the open market for $50.
Result:
- You keep your 100 shares
- You keep the $40 premium
- Your effective cost basis drops from $50 to $49.60 per share
- You can sell another call next month
This is the ideal outcome for covered call sellers. Time passes, you collect income, and nothing changes except your bank balance grows.
Scenario 2: Stock Drops
Bad news hits the sector, and SteadyFlow drops to $45. Your call option still expires worthless (nobody wants to pay $55 for a $45 stock), and you keep the $40 premium.
Result:
- You still own 100 shares, now worth $4,500 instead of $5,000
- You keep the $40 premium
- Your paper loss is $500, but the premium reduced it to $460
- You can sell another call at a lower strike if you want income, or wait for recovery
The covered call didn't prevent the loss, but it cushioned it by 8%. Over many months of collecting premium, this cushion compounds. That's why covered calls work well on quality companies, you're willing to hold through downturns anyway, so the premium becomes true income rather than compensation for forced sales.
Scenario 3: Stock Rises Above Strike
Great news arrives, and SteadyFlow jumps to $58. Your call option is now in the money. The buyer exercises their right to purchase your shares at $55.
Result:
- You sell your 100 shares at $55 (receiving $5,500)
- You keep the $40 premium
- Your total proceeds: $5,540
- Your profit: $540 on a $5,000 investment = 10.8% in one month
You "missed" the extra $3 per share ($300 total) between $55 and $58. Some investors view this as failure. Seasoned covered call sellers see it differently: you achieved a 10.8% monthly return on a stock you bought at fair value. That's exceptional.
If you still want to own SteadyFlow, you can use the $5,540 to repurchase shares. Or you can find another undervalued company and repeat the process.
Rolling the Call
What if SteadyFlow rises to $54 with a week left before expiration? You're not assigned yet, but you're worried about losing your shares.
You can roll the call by buying back your $55 call (perhaps for $0.60) and simultaneously selling a new $57.50 call expiring next month (perhaps for $0.50). This costs you $10 net ($60 - $50) but gives you another month of time and raises your ceiling from $55 to $57.50.
Rolling makes sense when:
- You strongly want to keep the shares
- The underlying company remains undervalued
- The roll cost is reasonable relative to the extended time and raised strike
Rolling doesn't make sense when:
- You're chasing a stock that's run far above fair value
- The roll cost exceeds reasonable income expectations
- You're emotionally attached rather than analytically sound
Connecting to Valuation Principles
Here's what separates value investors from premium chasers: the underlying company matters more than the option premium.
SteadyFlow traded at $50 with fair value around $60. Every covered call should incorporate this reality. If the stock rockets to $70, getting called away at $55 means selling at a discount to true value. That's fine occasionally, but shouldn't become your pattern.
Use intrinsic value analysis to set strike prices. If fair value is $60, selling calls at $55 makes sense. Selling calls at $48 does not, you'd be capping your upside below where the stock deserves to trade.
Building a Consistent Income Stream
One covered call is a trade. Repeated covered calls become an income strategy.
If you sell similar calls monthly on SteadyFlow and average 0.6% monthly yield (accounting for rolls and assignments), that's 7.2% annually from premium income alone. Add the stock's 3% dividend yield and 8% earnings yield working to appreciate the share price, and you're building serious wealth.
The key is consistency. Not every month will be optimal. Some calls get assigned. Some premiums are thin. Some rolls cost money. Over time, the math works because you're selling time decay on quality companies you're happy to own.
What Could Go Wrong?
Opportunity cost on breakout stocks: Your $55 call gets exercised when the stock runs to $80. You made money, but missed a huge gain.
Mitigation: Only sell covered calls on stocks trading near fair value. If a stock is deeply undervalued, consider waiting until it approaches fair value before layering on calls.
Whipsawing markets: The stock drops, you sell a lower strike call, then the stock recovers and you get called away at a loss.
Mitigation: Don't lower your strike below your original cost basis unless you're genuinely comfortable selling at that price. Patience prevents panic adjustments.
Premium chasing on weak companies: You find a stock with 3% monthly premium and start selling calls, only to watch the company deteriorate fundamentally.
Mitigation: Always start with company quality. High premiums often signal high risk. Use margin of safety principles when selecting stocks for covered calls.
Over-committing capital: You sell calls on every stock you own, then need liquidity and can't access it because everything is tied up in option positions.
Mitigation: Keep 20-30% of your portfolio free from covered call obligations. Maintain flexibility.
Next Steps
- Identify one quality stock in your portfolio suitable for covered calls
- Calculate fair value using Wall St Yardie or your preferred method
- Review the options chain for strikes above fair value
- Calculate potential yields at different strike prices
- Place your first covered call on a stock you're willing to hold regardless
- Track results monthly to understand your effective yield
- Practice rolling when stocks approach your strike near expiration
- Review covered call mechanics for deeper understanding
Covered calls turn waiting into income. Every month you own a quality stock, you can collect premium from investors willing to pay for optionality. They get the right to buy your shares. You get cash today. As long as you're selling calls on wonderful companies at reasonable valuations, the math favors patient investors.
*Disclaimer: This content is for educational purposes only and does not constitute financial advice. Past performance does not guarantee future results. Always conduct your own research before investing.*
