Credit Spread Strategy - Journal and Track

What Is a Credit Spread?

A credit spread is a two-leg options strategy that collects premium at entry with a predefined maximum risk. You sell an option closer to the current stock price and buy a protective option further away, both at the same expiration. The net credit received is your maximum profit, and the spread width minus credit is your maximum loss.

Credit spreads come in two forms:

• Bull put spread: Sell a put, buy a lower put. Bullish directional bias.
• Bear call spread: Sell a call, buy a higher call. Bearish directional bias.

Why Traders Use Credit Spreads

Credit spreads solve several problems that naked option selling creates:

Defined Risk

Unlike naked puts or calls, your maximum loss is capped at the spread width minus the credit. This lets you calculate exact position size and portfolio risk before entering.

Lower Margin Requirements

Brokers require far less margin for spreads than for naked options. A $5-wide spread requires approximately $500 in margin per contract minus the credit received, making spreads accessible to smaller accounts.

Probability-Based Trading

By selling options at specific deltas, you can target a statistical edge. A 0.20 delta short strike has roughly an 80% probability of expiring out of the money, though the 20% that fail can produce losses larger than individual wins.

Bull Put Spread Mechanics

The bull put spread is the most common credit spread for bullish or neutral traders.

Example Setup

Stock XYZ trading at $100:

• Sell the $95 put at $2.00 (0.25 delta)
• Buy the $90 put at $0.80

Net credit: $1.20 per share ($120 per contract) Max risk: $5.00 - $1.20 = $3.80 per share ($380 per contract) Breakeven: $95 - $1.20 = $93.80

The trade profits if XYZ stays above $93.80 at expiration. Maximum profit ($120) occurs if XYZ closes above $95.

Bear Call Spread Mechanics

The bear call spread works identically but on the call side, profiting from neutral to bearish moves.

Example Setup

Stock XYZ trading at $100:

• Sell the $105 call at $1.80 (0.25 delta)
• Buy the $110 call at $0.60

Net credit: $1.20 per share ($120 per contract) Max risk: $5.00 - $1.20 = $3.80 per share ($380 per contract) Breakeven: $105 + $1.20 = $106.20

Entry Criteria for Credit Spreads

IV Rank Matters Most

The single most predictive factor in credit spread success is the IV environment at entry. High IV means inflated premiums, which translates to wider breakeven zones and better credit-to-width ratios.

IV Rank	Premium Quality	Recommendation
Below 20	Poor	Avoid selling spreads
20-30	Below average	Only with strong directional conviction
30-50	Good	Standard entries
Above 50	Excellent	Aggressive positioning appropriate

Directional Analysis

Credit spreads are directional trades. A bull put spread needs the stock to stay above the short strike. Support your directional bias with:

• Key support and resistance levels
• Moving average positioning
• Trend direction on the daily and weekly timeframes
• Absence of upcoming catalysts (earnings, FDA decisions)

Your journal should note the technical rationale for each spread to determine which setups produce the highest win rates over time.

Position Management

The 50% Profit Target

Research and practitioner experience consistently show that closing credit spreads at 50% of maximum profit and redeploying capital outperforms holding to expiration. The math: you capture half the profit in roughly half the time, doubling your capital efficiency.

Track your results at different profit targets (25%, 50%, 75%, expiration) in your journal to find your optimal exit point.

Stop-Loss Discipline

Setting a stop-loss at 2x the credit received prevents catastrophic losses. If you collected $1.20 in credit, close the spread if the net debit to close reaches $2.40 (total loss of $1.20 per share). This limits your loss to approximately the same magnitude as your potential profit.

Rolling Spreads

When a trade moves against you but has not hit your stop, rolling to a later expiration can give the position more time. Rolling should:

• Collect additional net credit (never roll for a debit)
• Move the short strike further from the current price
• Be logged as a separate trade entry in your journal

Journaling Credit Spreads

Essential Fields Per Trade

Record these for every credit spread:

• Underlying and current price at entry
• Spread type (bull put or bear call)
• Short strike and its delta
• Long strike and spread width
• Net credit received
• IV rank at entry
• DTE at entry
• Exit date and closing debit
• P&L (net credit minus closing debit)
• Exit reason (profit target, stop-loss, expiration, rolled)

Aggregate Analysis

After 50+ trades, sort by:

• Win rate by IV rank bucket to find the minimum IV worth trading
• Average P&L by delta to find your optimal strike distance
• Win rate by DTE to find the best expiration window
• Performance by underlying to identify which stocks suit your approach

Risk Management Across a Spread Portfolio

Correlation Risk

Selling bull put spreads on five tech stocks creates concentrated exposure. If the sector drops, all five spreads lose simultaneously. Diversify across sectors and indices to reduce correlation.

Maximum Portfolio Allocation

Limit total credit spread exposure to 30-50% of your portfolio at any time. This leaves capital available for adjustments and prevents a single market shock from threatening your account.

Expiration Laddering

Spread entries across multiple expiration dates. If all your spreads expire the same week, a sudden market move can impact every position at once. Staggering expirations by 1-2 weeks reduces this risk.

Common Mistakes to Avoid

Selling Spreads Before Earnings

Earnings announcements cause large price moves that can blow through your short strike in minutes. The elevated IV before earnings makes premiums attractive, but the binary outcome risk is not worth it for defined-risk spreads.

Ignoring the Short Strike

Traders sometimes forget that a credit spread has a directional bias and treat it as pure income. If the underlying moves sharply against your spread, act on your stop-loss. Hope is not a management strategy.

Oversizing Positions

Because max risk is defined, some traders allocate too much capital to individual spreads. Even with an 80% win rate, a string of 3-4 consecutive losses is inevitable. Size each trade so that four consecutive max losses do not threaten your account.