If the bid-ask spread on your covered call is wider than 10% of the mid-price, you're paying a hidden tax on every trade. A call with a $1.50 bid and $2.00 ask has a $0.50 spread — meaning you're giving up $0.25 per share (12.5%) just to enter the position at mid. On illiquid names, spreads can be $1.00+ wide, turning a profitable strategy into a breakeven one after slippage.

How Much the Spread Actually Costs You

Consider two identical covered call opportunities:

Liquid option (AAPL $220 call):

  • Bid: $3.40 / Ask: $3.50 / Mid: $3.45
  • You sell at $3.43 (near mid)
  • Cost of spread: ~$0.05 per share = 1.5% of premium

    • Illiquid option (small-cap $35 call):

  • Bid: $1.00 / Ask: $1.80 / Mid: $1.40
  • You sell at $1.15 (closer to bid)
  • Cost of spread: ~$0.25 per share = 17.9% of premium

    • On 12 trades per year, that illiquid option costs you an extra $300 per contract in slippage versus the liquid one. Over a 5-contract portfolio, that's $1,500 per year in hidden costs.

    When to Walk Away

    Walk away from a covered call trade if:

  • Spread > 15% of mid-price — Too expensive to justify
  • Open interest < 50 contracts — Nobody is trading this strike
  • Daily volume is zero — You'll be the only order sitting there
  • No market maker presence — Some small-cap options have no reliable market maker

    • Tactics to Get Better Fills

    1. Always Use Limit Orders at Mid-Price

    Never use market orders for options. Place your limit sell order at the mid-price and wait. If the mid is $2.50, place your order at $2.50. Many times you'll get filled within minutes as the market maker adjusts.

    2. Adjust in Nickel Increments

    If your mid-price limit doesn't fill after 15-30 minutes, lower it by $0.05 and wait again. Repeat until filled. This incremental approach typically gets you within $0.05-0.10 of mid rather than taking the terrible bid price.

    3. Trade During Peak Liquidity Hours

    Options spreads are tightest between 10:00 AM and 3:00 PM Eastern. Avoid the first 15 minutes after market open (spreads are widest) and the last 30 minutes (erratic pricing). Many market makers widen spreads at open to protect against overnight gaps.

    4. Choose Liquid Strikes

    Monthly expirations have better liquidity than weeklies on most stocks. Round-number strikes ($50, $100, $150) have tighter spreads than odd strikes ($47, $103). And near-the-money strikes always have tighter spreads than deep OTM or deep ITM.

    5. Use the Stock's Earnings Cycle

    Options liquidity spikes around earnings dates. If you're selling a call 30-45 days before earnings, you'll typically find tighter spreads because more participants are active.

    6. Consider More Liquid Alternatives

    Can't get a tight spread on the individual stock? Consider:

  • Selling calls on the sector ETF instead (XLK instead of a mid-cap tech stock)
  • Moving to a higher-volume stock in the same sector
  • Using a different expiration with more open interest

    • Measuring Spread Impact on Returns

    Calculate your "effective yield" after spread costs:

    Gross premium yield: $2.50 / $100 stock = 2.5% monthly Spread cost: $0.30 per share (wide spread) Effective premium: $2.20 / $100 = 2.2% monthly Annual difference: 3.6% in lost returns

    Over a $100K portfolio, that's $3,600/year left on the table to market makers. Choosing liquid options and using patience on limit orders can recover most of that.

    OptionsPilot's Approach

    When OptionsPilot's covered call finder ranks opportunities, it factors in bid-ask spread width. High-spread options are flagged so you don't accidentally sell calls where slippage eats your profit margin. Tight-spread, liquid options float to the top of the rankings.