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SPX 0 DTE Iron Butterfly

Scaling Model with Re-Centering Strategy

Based on TastyTrade Market Measures Research

Strategy Parameters

Wing Width
$10
Strikes Wide
2
Max Credit
$925
Max Loss
$75
Risk/Reward
1:12.3
Re-Center Trigger
15 pts

📈 Profit Target Comparison

Take Profit Win Amount Win Rate Loss Amount EV/Trade Daily (4 trades) Monthly
10% $92.50 70% $75 +$42.25 +$169 +$3,380
15% $138.75 59% $75 +$51.11 +$204 +$4,089
20% $185.00 52% $75 +$60.20 +$241 +$4,816
35% $323.75 39% $75 +$80.51 +$322 +$6,441

💰 Break-Even Analysis

Take Profit Win $ Lose $ Break-Even WR Actual WR Edge
10% $92.50 $75 44.8% 70% +25.2%
20% $185 $75 28.8% 52% +23.2%
35% $323.75 $75 18.8% 39% +20.2%

What This Means

You have a significant edge over break-even at every profit target. Even on your worst days, the math is working for you. The 10% target requires only a 45% win rate to break even, but historically wins 70% of the time.

🎯 Daily Scenarios (4 Positions @ 70% WR, 10% TP)

Excellent Day
4 Wins / 0 Losses
+$370
24% probability
Good Day
3 Wins / 1 Loss
+$202.50
41% probability
Break-Even Day
2 Wins / 2 Losses
+$35
26% probability
Bad Day
1 Win / 3 Losses
-$132.50
8% probability
Worst Day
0 Wins / 4 Losses
-$300
1% probability
Expected Daily P/L
+$169
65% of days are profitable

🔄 Why Re-Center Every 15 Points?

Risk Management

Metric Value
Max Daily Loss (4 flies) -$300
Max Weekly Loss (worst case) -$1,500
Expected Monthly Profit +$3,380 to +$6,441
Risk/Reward per Trade 1:12.3
Probability of Worst Day 1%

The Bottom Line

Risk $75 per fly
Target $92 - $185 profit (10-20%)
Re-center every 15 SPX points
Max 4 positions at a time

Expected: +$3,400 to +$4,800/month

Disclaimer: This model is based on historical TastyTrade research data. Past performance does not guarantee future results. Options trading involves significant risk of loss and is not suitable for all investors. Always paper trade or start small to validate the strategy works for your trading style. The win rates and profit expectations shown are based on backtested data and actual results may vary.
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