Poor Man's Covered Call: Diagonal Debit Spread Mechanics and Setup in Thinkorswim

Understanding the Poor Man's Covered Call (PMCC)

The Poor Man's Covered Call is a sophisticated options strategy designed as a capital-efficient alternative to the traditional covered call. Instead of holding 100 shares of the underlying, the trader purchases a long-term call option (LEAPS) as a synthetic stock replacement, while writing a shorter-term call against it. This creates a diagonal debit spread structure, exploiting differences in time decay and implied volatility between the legs.

From a risk-reward standpoint, the PMCC reduces upfront capital requirements by substituting the stock with deep-in-the-money (ITM) LEAPS. Additionally, it limits downside risk to the premium paid for the LEAPS minus the premium received from selling the short call.

Mechanics of the Diagonal Debit Spread in PMCC

The diagonal spread in a PMCC consists of:

• Long leg: A deep ITM LEAPS call option, typically with 9 to 12 months or more until expiration.
• Short leg: A near-term out-of-the-money (OTM) call option, generally 1 to 2 months to expiration.

The ‘‘diagonal’’ nomenclature arises because the options differ in both strike price and expiration date. This setup captures theta decay from the short call while preserving upside potential via the LEAPS.

Key formulas include:

• Net Debit = Cost of Long LEAPS Call - Premium Received from Short Call
• Maximum Risk ≈ Net Debit (assuming no stock assignment and early exit before assignments)
• Maximum Profit = (Strike Short Call - Strike Long LEAPS) - Net Debit (if assigned or stock is called away)

Step-by-Step Setup of a PMCC in Thinkorswim

1. Selecting the Underlying

Choose a liquid, established stock or ETF with sufficient options volume and open interest across multiple expiration cycles. High implied volatility (IV) can augment premium on the short call but may increase the cost of the LEAPS.

2. Choosing the Long LEAPS Call

Within Thinkorswim:

• Open the Trade tab.
• Select an expiration at least 9 months out (e.g., an 11-month out LEAPS).
• Pick a deep ITM strike: approx. $15 to $20 in-the-money for conservative exposure.
  • Example: For SPY at $400, consider the LEAPS at $350 strike.
• Verify the bid-ask spread is tight; mid-point pricing is standard for entries.
• Confirm the LEAPS delta is approximately 0.70 to 0.85, reflecting strong directional exposure but cheaper than stock.

3. Selecting the Short-Term Call to Write

• Find a call option with 30 to 45 days until expiration.
• Select an out-of-the-money strike, typically 5% to 10% above current stock price.
• Ensure the ATM short call's implied volatility is sufficiently improved to generate premium but not too expensive to nullify profits.
• The short call delta should be around 0.20 to 0.35, balancing probability of assignment against premium received.

4. Constructing the Spread

• In the Thinkorswim Trade tab, select the long LEAPS call and right-click, then choose "Buy".
• Locate the short-term call option and right-click "Sell" this option.
• Hold CTRL to select both simultaneously; click "Buy Vertical" or manually add both to the order entry.
• Adjust quantity to one or more contracts per trading intent.

5. Reviewing the Order and Risk Profile

• Click the Analyze tab and select Risk Profile.
• Input the constructed spread to visualize profit/loss at expiration.
• Confirm:
  • Maximum loss approximates the net debit paid.
  • Maximum profit occurs if stock price rises above the short call strike at expiry.
  • Breakeven point equals long LEAPS strike plus net debit paid.

6. Order Execution

• Use a Limit order to achieve favorable fills.
• Review commissions and fees to ensure cost-effectiveness.
• Monitor implied volatility and theta decay dynamics before confirming.

Practical Example

Assuming AAPL trading at $180. Objective: create PMCC with minimal capital tied.

• Buy 1 AAPL 12-month LEAPS call at $140 strike for $50.00 (intrinsic value $40 + $10 premium).
• Sell 1 near-term 30-day $190 strike call for $3.00.

Net Debit = $50.00 - $3.00 = $47.00 or $4,700 per contract.

• Max Risk = $4,700.
• Max Gain = ($190 - $140) * 100 - $4,700 = $5,300.
• Breakeven at expiration = $140 + $47 = $187.*

This position allows participation in upside gains with a significant cost reduction versus buying 100 shares at $180 ($18,000). The short call premium partially offsets the LEAPS premium, enhancing returns.

Trade Management Considerations

• Monitor short call decay; close or roll the short call to maintain premium capture.
• Watch delta and theta shifts as expirations approach; sell the short call again monthly as long as conditions permit.
• Track implied volatility shifts, as IV crush post-earnings or events can impact option values.
• Be prepared for early assignment risk on the short calls, especially if they become deep ITM near expiration without dividends.

Advantages and Risks

Advantages:

• Significantly reduced capital requirement versus traditional covered calls.
• Ability to generate recurring income by selling short calls sequentially.
• Downside risk limited to the net debit, unlike owning stock which has full downside exposure.

Risks:

• LEAPS option can lose value if stock declines steeply.
• Early assignment risk requires attentive management, especially around ex-dividend dates.
• Requires active management and rolling of short calls.

Conclusion

Utilizing the diagonal debit spread mechanics within Thinkorswim to implement the Poor Man's Covered Call enables traders to synthetically replicate covered call exposures at a fraction of the capital. By methodically selecting deep ITM LEAPS and systematically selling short OTM calls, traders achieve controlled risk and defined profit potential. Mastery of order entry, risk visualization, and trade management tools in Thinkorswim is vital to operational success in this advanced strategy.