Strategy 1: Iron Condor
What It Is
An iron condor combines a bull put spread and a bear call spread, profiting when the underlying stays within a range. It's a market-neutral, premium-selling strategy with defined risk.
Optimal Backtest Parameters
| Parameter | Recommended Setting |
Why These Settings
0.16 delta places your short strikes at roughly the 1-standard-deviation level, giving the underlying a 68% probability of staying within the range at expiration. With active management (50% profit target), the actual win rate climbs to 75-80%.
30-45 DTE hits the theta decay sweet spot. Options lose time value fastest in the 30-45 day range relative to gamma risk. Shorter expirations (weekly) have too much gamma risk; longer expirations (60+) have too little theta.
50% profit target is the key differentiator. Research consistently shows that closing iron condors at 50% of max profit produces the best risk-adjusted returns. You give up potential profit but dramatically reduce the frequency and magnitude of losses.
5-point wings define your max risk at $500 per side minus the credit. Wider wings collect more premium but increase max loss. For SPY, 5 points is the standard width.
Step-by-Step: Backtest on OptionsPilot
Expected Results (Based on Historical Data)
| Metric | Expected Range |
Your specific results will vary based on exact date range, VIX filtering, and whether you include the most extreme market periods (2008, 2020).
Common variations to test:
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Strategy 2: Vertical Spread (Bull Put / Bear Call)
What It Is
A vertical spread is a directional strategy using two options at different strikes with the same expiration. A bull put spread (selling a put, buying a lower put) profits when the stock stays above the short strike. A bear call spread (selling a call, buying a higher call) profits when the stock stays below the short strike.
Unlike iron condors, vertical spreads have a directional bias — making them ideal when you have a market outlook.
Optimal Backtest Parameters
#### Bull Put Spread (Bullish)
| Parameter | Recommended Setting |
#### Bear Call Spread (Bearish)
Why These Settings
0.30 delta is more aggressive than the iron condor's 0.16 because you're making a directional bet. At 0.30, you're roughly one-half standard deviation out of the money — still a high probability of profit, but with more meaningful credits.
Directional filter: Backtesting shows that bull put spreads perform significantly better when the underlying is above its 50-day moving average. Without a directional filter, you're selling bullish spreads into downtrends — a recipe for losses.
Step-by-Step: Backtest on OptionsPilot
Expected Results
#### Bull Put Spread (No Directional Filter)
| Metric | Expected Range |
#### Bull Put Spread (With 50-Day MA Filter)
The directional filter makes a dramatic difference. It reduces the number of trades (fewer entries during downtrends) but significantly improves win rate and reduces drawdowns.
Key insight from backtesting: Bull put spreads outperform bear call spreads over long periods because the stock market has a long-term upward bias. From 2008-2025, bull put spreads on SPY returned roughly 40% more than comparable bear call spreads.
Backtest Vertical Spreads Now →
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Strategy 3: Butterfly Spread
What It Is
A butterfly spread is a neutral strategy centered around a specific price target. You simultaneously:
The result is a position that profits most if the underlying is exactly at the middle strike at expiration — creating a tent-shaped payoff diagram. Butterflies are cheap to enter (low debit) with a high max profit relative to capital at risk.
Optimal Backtest Parameters
| Parameter | Recommended Setting |
Why These Settings
ATM center strike maximizes the probability of the underlying being near the middle at expiration. While you can bias the butterfly up or down for a directional view, the neutral ATM version is the best starting point for backtesting.
14-30 DTE is shorter than iron condors because butterflies profit from the final convergence of price to the center strike. Too far out and the butterfly barely moves; too close and you don't get enough trades to reach the center.
10-point wings on SPY create a $20 profit zone ($10 on each side of center). This gives the underlying room to move while keeping the debit low.
50% profit target is aggressive for a butterfly — the max profit zone is narrow, and reaching it requires precise price action. Taking profits at 50% of max is more realistic and produces better risk-adjusted returns than holding for max profit.
Step-by-Step: Backtest on OptionsPilot
Expected Results
| Metric | Expected Range |
Butterflies have a low win rate but an outstanding risk-reward ratio. You lose small (the debit paid) and win big (3-5x your risk) when the trade works. The key is consistency and large sample sizes.
Important backtesting insight: Butterflies perform best in low-to-moderate volatility. When VIX is above 25, the wide daily ranges make it unlikely that SPY will settle near your center strike. Adding a VIX < 25 filter improves the Sharpe ratio by 20-30%.
Backtest Butterfly Spreads Now →
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Strategy 4: Broken Wing Butterfly
What It Is
A broken wing butterfly (BWB) is an asymmetric variation of the standard butterfly. Instead of equal-width wings, one wing is wider than the other. This creates a position that:
The most common setup is a put broken wing butterfly: you skip a strike on the lower wing, creating a wider put spread on the downside. This means you can enter for a credit while still having a neutral-to-bullish outlook.
Optimal Backtest Parameters
| Parameter | Recommended Setting |
Why These Settings
Asymmetric wings give you a credit entry with downside protection up to a point. The "break" in the wing means you have a larger max loss on the downside if the market sells off aggressively — but the credit entry partially offsets this.
21-45 DTE is longer than the standard butterfly because the asymmetry requires more time for the position to mature. With shorter expirations, the credit received is too small to matter.
25-50% profit target — BWBs have a wider profit zone than standard butterflies, making lower profit targets (25%) viable. This significantly improves the win rate.
Step-by-Step: Backtest on OptionsPilot
Expected Results
| Metric | Expected Range |
BWBs sit between iron condors and standard butterflies in terms of risk-reward. They win more often than butterflies (wider profit zone) but less often than iron condors (still require directional convergence). The zero-cost entry is their unique advantage.
Backtest Broken Wing Butterflies →
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Comparing All Four Strategies
Which Strategy Is Right for You?
You want consistent income with minimal management: Iron Condor. Highest win rate, well-understood mechanics, and the most historical data to validate.
You have a market outlook: Vertical Spread. The directional bias lets you express a view while collecting premium. Pair with a trend filter for best results.
You want high reward-to-risk: Butterfly. Low win rate but outsized winners. Best in low-volatility, range-bound markets.
You want a creative, capital-efficient approach: Broken Wing Butterfly. Free or credit entry with a wide profit zone. More complex to manage but rewarding when it works.
Tips for Backtesting Any Strategy
1. Start with Default Parameters
Don't optimize immediately. Run your first backtest with standard settings (the ones listed in this guide) and see the baseline performance. Then make one change at a time.
2. Test Across Multiple Regimes
Always include at least one crash (2008, 2020), one bear market (2022), and one bull market (2019-2021) in your test period. A strategy that only works in one regime is fragile.
3. Pay Attention to Max Drawdown
Win rate and annual return grab attention, but max drawdown determines whether you can actually trade the strategy. A 35% drawdown will test the resolve of even experienced traders.
4. Compare Strategies Head to Head
OptionsPilot makes this easy. Run the same date range and parameters across multiple strategies, then compare the equity curves and metrics side by side.
5. Don't Overtune
If you test 50 parameter combinations and pick the best one, you've found the parameters that fit the past — not the future. Keep it simple: 3-5 parameters maximum.
Frequently Asked Questions
Which is more profitable: iron condors or vertical spreads?
On a risk-adjusted basis, iron condors typically outperform over long periods because they're market-neutral. Vertical spreads can outperform in strong directional markets but underperform in choppy or reversing environments. Backtest both on OptionsPilot and compare for your specific parameters.
Can I backtest butterflies for free?
Yes. OptionsPilot supports butterfly spreads with full customization of center strike, wing width, DTE, and exit rules — all for free.
What's the minimum number of trades for a reliable backtest?
200 trades minimum, 500+ preferred. With weekly entries over 10 years, you'll generate approximately 500 trades — more than enough for statistical significance.
Should I backtest on SPY or SPX?
Both are valid. SPY has tighter bid-ask spreads and more granular strike prices. SPX is cash-settled (no assignment risk) and has favorable tax treatment (60/40). OptionsPilot supports both.
How do commissions affect backtest results?
Significantly for small-credit strategies. A $1.50 iron condor credit with $1.30 in round-trip commissions nets only $0.20 after costs. Always factor in at least $0.50-1.50 per trade for commissions depending on your broker.
Start Testing Today
The best way to learn which strategy works for you is to test all four and compare. OptionsPilot's backtester lets you run multiple backtests in minutes — for free.
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