1. Introduction to Credit Spreads
A credit spread is an options strategy where you simultaneously sell one option and buy another at a different strike price, collecting a net premium (credit) upfront.
Credit spreads are the backbone of income-focused options trading. More than half of our 1,200+ closed trades are defined-risk spreads. CSH Analytics has audited the record monthly and annually since April 2023; its latest annual report covers the 760 trades closed 1 July 2025 to 28 July 2026: 92.9% won, with a profit factor of 3.73.
Unlike buying options outright (where you need the stock to move in your direction), credit spreads profit from time decay, allowing you to generate income in sideways, slightly bullish, or slightly bearish markets.
Who Should Use Credit Spreads?
- Beginner traders looking for defined-risk income strategies
- Income-focused investors who want premium from time decay
- Portfolio managers seeking to enhance yield on existing positions
2. Bull Put Spreads vs Bear Call Spreads
Bull put spreads profit when the stock stays above the short strike, while bear call spreads profit when the stock stays below the short strike.
| Feature | Bull Put Spread | Bear Call Spread |
|---|---|---|
| Market Outlook | Neutral to Bullish | Neutral to Bearish |
| Options Sold | OTM Put | OTM Call |
| Suits | High IV, uptrend | High IV, downtrend |
Across the 760 trades closed 1 July 2025 to 28 July 2026, CSH Analytics reports a 92.9% win rate, an average winner of $148 and an average loser of $519, at one contract per trade. We do not publish per-strategy win rates, because the audit does not break them out.
Most traders at CFU favor bull put spreads because equities have a long-term upward bias. However, bear call spreads can be equally effective during earnings season or market pullbacks.
3. Strike Selection Strategies
The 16-delta method is a widely used approach to strike selection, implying roughly an 84% probability of expiring out of the money. A high win probability comes with a larger loss when it does not.
That is the delta approximation: a 16-delta option has roughly a 16% chance of finishing in the money. Real outcomes vary. That probability edge is the starting point for how we choose strikes at Cash Flow University.
The 16-Delta Method
- Identify your underlying stock and expiration date
- Find the put option with a delta closest to -0.16 (for bull put spreads)
- Buy a protective put 1-5 strikes further out of the money
- The resulting spread gives you defined risk with high probability
Advanced: Probability Analysis
For experienced traders, combining delta-based selection with implied volatility rank (IVR) analysis can boost returns. When IVR is above 50, consider selling at the 20-25 delta level for higher premiums. When IVR is below 30, tighten to 10-12 delta for better probability.
4. Position Sizing and Risk Management
Keep the risk on any single credit spread position small: a common rule is 1 to 2% of your portfolio.
Risk management separates profitable traders from those who blow up their accounts. Cash Flow University's published record uses one contract per trade.
The 2% Rule
Calculate your maximum risk per trade: if your account is $50,000, your max risk per trade should be $1,000 (2%). For a $5-wide credit spread with $1.00 credit, your max risk is $400 per contract, allowing you to trade 2 contracts.
Portfolio-Level Risk
- Keep total portfolio risk under 20% of account value
- Diversify across 5-10 uncorrelated underlyings
- Never have more than 3 positions in the same sector
- Monitor total delta exposure across all positions
5. When to Roll, When to Close
Close credit spreads at 50-80% of maximum profit to optimize your capital efficiency and win rate.
Profit Targets
Taking most of the credit early frees the capital and shortens the time a position can turn against you. Holding for the last few cents keeps all of the risk for little of the reward.
When to Roll
Roll a credit spread when the position is tested (stock approaches your short strike) and you still believe in your thesis. The mechanical rule: roll when you're down 2x your initial credit received.
6. Worked Examples
Two worked examples with round numbers show how the mechanics play out. They are hypothetical, not trades from the record.
Example 1: Bull Put Spread on AAPL
Setup: Say AAPL trades at $195 and a trader sells the $185/$180 put spread for a $1.20 credit, with IV rank at 45 and the 16-delta put at the $185 strike.
Result: If AAPL stays above $185 and the trader closes at 80% of max profit ($0.96) after 18 days, the max risk was $380 and the return on risk is 25.3%.
Example 2: Bear Call Spread During Earnings
Setup: Say TSLA gaps up after earnings and a trader sells the $280/$285 call spread for a $1.50 credit, expecting implied volatility to fall.
Result: If implied volatility drops sharply the next day, the trader might close at 60% of max profit, $0.90 on the credit. A single fast winner is not an annual rate and should not be read as one.
Hypothetical examples with round numbers, not trades from the record. Real closed trades, losses included, are on the performance page.
7. Advanced Techniques
Advanced techniques like volatility harvesting and earnings plays change the risk profile of a spread. We do not publish an uplift figure for them, because the record does not support one.
Volatility Harvesting
When IV rank is above 50, credit spreads benefit from implied volatility contraction (IV crush). Implied volatility has tended to run above realized volatility over time, which is the edge premium sellers rely on.
Earnings Plays
Selling credit spreads before earnings captures inflated premiums. The key is to sell far enough out of the money that even a large earnings move doesn't breach your short strike. A common approach: sell at 1.5x the expected move.
Iron Condors (Double Credit Spreads)
Combining a bull put spread with a bear call spread creates an iron condor, with the advantage of collecting premium from both sides.
8. Common Mistakes and How to Avoid Them
The #1 mistake new credit spread traders make is selling too close to the money in search of higher premiums.
Top 5 Mistakes
- Selling too close to ATM: Higher premium = higher probability of loss. Stick to 16-delta or further OTM.
- Ignoring IV rank: Selling spreads in low IV environments means less premium and more risk relative to reward.
- No profit target: Letting winners run to expiration exposes you to last-minute reversals. Always have a 50-80% profit target.
- Oversizing positions: One bad trade shouldn't cost you more than about 2% of your account.
- Ignoring earnings dates: An earnings announcement within your expiration window can cause extreme moves. Always check the calendar.
9. Frequently Asked Questions
What is the minimum capital needed for credit spreads?
You want around $5,000 to trade credit spreads properly. A $5-wide spread requires approximately $400-500 in margin per contract. Start with one contract and add size only as you gain experience.
What options approval level do I need?
Most brokers require Level 2 or Level 3 options approval for credit spreads. This typically requires some options trading experience and a margin account.
How much can I realistically make with credit spreads?
We do not publish an annual return figure. The record tracks trades at one contract each, not member account sizes, so any percentage return would depend on capital we do not see. What we can show is the audited outcome of every closed trade.
What happens if my credit spread is assigned?
If your short option is in the money at expiration, you may be assigned. With a credit spread, your long option limits your loss. The maximum loss is the width of the spread minus the credit received. Early assignment is rare but possible, especially near ex-dividend dates.
10. Further Reading and Resources
Continue your credit spread education with these curated resources from Cash Flow University.
CFU Guides
Research Reports
- CFU Performance Report: CSH Analytics annual audit of the 760 trades closed 1 July 2025 to 28 July 2026 (PDF)
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