Covered Call Strategy¶

Overview¶

A covered call involves owning the underlying stock and selling (writing) a call option against it. This is an income-generating strategy that sacrifices upside potential for immediate premium collection.

Difficulty beginner Market Outlook: Neutral to slightly bullish Risk Level: Low to moderate

Strategy Construction¶

Position: Long 100 shares of stock + Short 1 call option (per 100 shares)

Net Cost = Stock Price - Call Premium
Max Profit = (Strike - Stock Price) + Call Premium
Max Loss = Stock Price - Call Premium (if stock goes to zero)
Breakeven = Stock Price - Call Premium

where: Stock Price entry cost per share · Strike short-call strike · Call Premium premium collected per share from writing the call. does: caps upside at strike in exchange for upfront premium that lowers cost basis. Mildly bullish to neutral income trade — ideal in range-bound or slow-grind markets where you want yield on stock you already hold; suffers in sharp declines (no downside protection) and gives up upside in fast rallies above strike.

Payoff Diagram¶

Profit/Loss
  |           /----- (capped at strike)
  |          /
  |         /
  |        /
  |       /
  |      /
  |     /
  |    /
  |   /
  |  /
  | /
  |/
--+------------------ Stock Price
  |\
  | \
  |  \
  |   \
  |    \
  |     \
  v

Entry Rules¶

Stock Selection:
Own (or willing to own) 100+ shares of a quality stock
Prefer stocks with moderate implied volatility (higher premium)
Avoid stocks expected to make large directional moves
Strike Selection:
Conservative: ITM strike (higher delta, more protection, lower upside)
Moderate: ATM strike (balanced premium vs. upside)
Aggressive: OTM strike (lower premium, more upside retained)
Typical delta target: 0.20 - 0.40
Expiration Selection:
30-45 days to expiration (optimal theta decay)
Avoid very short-dated options (< 7 days) due to gamma risk
Premium Target:
Minimum 1-2% of stock price per month
Annualized yield target: 12-20%

Exit Rules¶

Scenario	Action
Stock < Strike at expiry	Let option expire worthless, write new call
Stock > Strike at expiry	Shares called away, realize max profit
Option loses 50%+ value	Buy back to close, write new call
Stock drops significantly	Consider rolling down/out or closing position
21 days to expiry	Evaluate closing or rolling if target met

Stop-Loss¶

Stock Stop Loss = Entry Price - (2 × ATR) or -8% to -10%

If stopped out on stock:
- Buy back the call option immediately
- Total loss = Stock loss + Call loss (or - Call gain)

Position Sizing¶

Capital Required = Stock Price × 100 - Call Premium

Example:
Stock: $50/share
Call Premium: $2.00
Capital: $5,000 - $200 = $4,800

Max Risk: $4,800 (stock to zero)
Max Profit: ($55 - $50 + $2) × 100 = $700
Return on Capital: 14.6%

Expected Performance¶

Metric	Value
Win Rate	65-75%
Risk-Reward	1:3 to 1:5 (favorable)
Annual Return	8-15% (conservative)
Max Drawdown	Similar to owning stock outright
Best Market	Range-bound, slow bull
Worst Market	Sharp decline

Greeks Exposure¶

Greek	Covered Call Position	Interpretation
Delta	+0.50 to +0.80	Bullish but dampened
Gamma	Negative	Accelerates losses on big moves
Theta	Positive	Benefits from time decay
Vega	Negative	Loses value if IV rises
Rho	Positive	Benefits from rate increases

Variations¶

1. Buy-Write¶

Buy stock and sell call simultaneously. Reduces slippage risk.

2. Hold-Write¶

Sell calls on existing stock position. Already have market exposure.

3. Overwriting¶

Sell calls on more shares than owned (requires margin). More aggressive.

4. Deep ITM Covered Call¶

Sell deep ITM calls for maximum downside protection. Acts like a synthetic put.

Checklist¶

[ ] Stock selection: quality company, acceptable to hold long-term
[ ] Implied volatility: above historical (overpriced options)
[ ] Strike selection: matches outlook (OTM for bullish, ATM for neutral)
[ ] Earnings/events: avoid writing through earnings unless intentional
[ ] Dividend timing: check ex-dividend dates (early assignment risk)
[ ] Exit plan: defined before entering
[ ] Position size: within portfolio allocation limits

Assumptions & Limitations¶

Assumes ability to hold stock long-term if assigned
Does not protect against catastrophic stock decline
Upside is capped at strike price
Early assignment risk with deep ITM calls near dividends
Transaction costs can erode returns with frequent rolling
Tax implications: short-term gains on premium, potential loss of long-term holding period

References¶

CBOE. (2023). "S&P 500 BuyWrite Index (BXM) Methodology."
Whaley, R.E. (2002). "Return and Risk of CBOE Buy Write Monthly Index." Journal of Derivatives, 10(2), 35-42.
Feldman, B.E. (2007). "The Risk-Return Tradeoff of Covered Call Writing." Journal of Investment Management, 5(3), 52-64.