8. What Are Debit and Credit Spreads?
What Is a Spread in Options?
An options spread is when you buy one option and simultaneously sell another, usually with:
- Same expiry
- Same type (both calls or both puts)
- Different strike prices
There are two main types:
- Debit Spread – you pay to enter (net outflow)
- Credit Spread – you get paid to enter (net inflow)
Debit Spread
- You pay to enter the position
- Best for traders with a directional view
Characteristics
| Feature | Description |
|---|---|
| Net Cash Flow | Outflow (you pay upfront) |
| View | Directional (bullish or bearish) |
| Time Decay | Hurts position (theta negative) |
| Risk | Limited to premium paid |
| Reward | Limited, better than naked |
| Volatility View | Useful in low to moderate IV |
Example: Bull Call Spread (Debit)
Stock XYZ = ₹100, you expect a modest rise.
| Action | Option | Strike | Premium |
|---|---|---|---|
| Buy | Call | ₹100 | ₹8 |
| Sell | Call | ₹110 | ₹3 |
Net cost = ₹8 – ₹3 = ₹5 (Debit)
Outcome:
- Max profit = ₹10 spread – ₹5 = ₹5
- Max loss = ₹5
- Breakeven = ₹100 + ₹5 = ₹105
- Profit if stock > ₹105
Credit Spread
- You receive premium upfront
- Best for sideways or stable markets
Characteristics
| Feature | Description |
|---|---|
| Net Cash Flow | Inflow (premium received) |
| View | Neutral to slightly directional |
| Time Decay | Helps position (theta positive) |
| Risk | Limited (spread – premium) |
| Reward | Limited (premium collected) |
| Volatility View | Best in high IV expected to fall |
Example: Bear Call Spread (Credit)
Stock XYZ = ₹100, you expect it won’t rise above ₹105.
| Action | Option | Strike | Premium |
|---|---|---|---|
| Sell | Call | ₹100 | ₹6 |
| Buy | Call | ₹110 | ₹2 |
Net credit = ₹6 – ₹2 = ₹4
Outcome:
- Max profit = ₹4 (premium received)
- Max loss = ₹10 – ₹4 = ₹6
- Breakeven = ₹100 + ₹4 = ₹104
- Profit if stock < ₹104
Side-by-Side Comparison
| Feature | Debit Spread | Credit Spread |
|---|---|---|
| Premium Flow | Outflow (pay upfront) | Inflow (receive upfront) |
| Market View | Trend-following | Range-bound |
| Profit From | Price movement | Time decay |
| Time Decay (Theta) | Works against you | Works in your favor |
| Risk | Limited to premium paid | Limited to (spread – premium) |
| Reward | Limited (spread – premium) | Limited (premium received) |
| Probability | Lower | Higher |
| Best Use Case | Expect strong price move | Expect sideways consolidation |
Quick Summary Table
| Strategy Type | Directional? | Cash Flow | Theta Benefit | Ideal Market |
|---|---|---|---|---|
| Debit Spread | Yes | You Pay | Negative | Trending |
| Credit Spread | No | You Get | Positive | Sideways |
When to Use Which
| Market View | Recommended Spread |
|---|---|
| Strong bullish move | Bull Call Spread (Debit) |
| Moderate bearish move | Bear Put Spread (Debit) |
| Flat or sideways | Iron Condor / Credit Spread |
| Slight uptrend | Bull Put Spread (Credit) |
| Slight downtrend | Bear Call Spread (Credit) |
Key Takeaways
- Use a debit spread when you expect directional movement and want cheaper entry than a single option
- Use a credit spread when you expect stability and want to earn from time decay
- Both are safer than naked options with defined risk and reward