Most Traders Sell Iron Condors. This 3-Year Study Shows Put Spreads Beat Them on Every Metric.

Key Concepts

• Zero DTE (Zero Days to Expiration): Options contracts that expire on the same day they are traded.
• Expected Move: A statistical calculation of the range an underlying asset (SPX) is expected to move within a specific timeframe, used here to set short strikes.
• Short Put Vertical: A credit spread strategy involving selling a put at a higher strike and buying a put at a lower strike.
• Short Call Vertical: A credit spread strategy involving selling a call at a lower strike and buying a call at a higher strike.
• Iron Condor: A neutral strategy combining a short put vertical and a short call vertical.
• Management Mechanics: The rules applied to a trade after entry, such as profit-taking targets (e.g., 25%, 50%) or time-based exits (e.g., noon).
• Max Drawdown: The largest peak-to-trough decline in the value of a portfolio or strategy over the study period.
• Directional Bias: The tendency of a strategy to profit from a specific market movement (bullish, bearish, or neutral).

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Study Methodology

• Data Scope: 3 years of SPX zero DTE option data, sampled every 10 minutes.
• Trade Parameters: $10-wide spreads initiated at approximately 9:00 a.m. Chicago time (CST).
• Strike Selection: Short strikes were consistently placed at the "expected move."
• Management Variations:
  • Profit Targets: Exiting at 25% or 50% of the initial credit.
  • Time-based: Exiting at noon or holding through the market close.
  • No Management: Holding the position until expiration.

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Findings by Strategy

1. Short Put Verticals

• Performance: Highly successful due to the generally bullish nature of the market during the study period.
• Management: Holding through the close (no management) yielded the highest total profit, though it carried higher risk.
• Drawdown: Significantly lower than other strategies, making it a preferred choice for retail traders.
• Key Insight: An 87% win rate was observed, confirming the viability of selling put premium in a rising market.

2. Short Call Verticals

• Performance: Consistently poor. The study showed that in a persistently rising market, short call spreads resulted in repeated losses.
• Drawdown: Extremely high. The data indicated that "no management" on call spreads led to catastrophic drawdowns, with the presenters noting that these positions were "losers every day."

3. Iron Condors

• Performance: Neutral, but highly dependent on management.
• Management: Exiting at noon was ineffective. However, closing at a 50% profit target proved to be a winning strategy.
• Drawdown: Adding the short call side to the put side increased the max drawdown by approximately 10-fold compared to put spreads alone.

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Key Arguments and Perspectives

• Market Awareness vs. Mechanical Trading: While the study demonstrates that mechanical, emotionless trading (like a computer) can be profitable, the presenters emphasize the need for "market awareness." Traders should adjust strategies if market conditions shift (e.g., persistent downward moves).
• The "Choose Your Own Adventure" Nature: Zero DTE trading is highly flexible. There is no "one size fits all" approach; traders must choose strategies that align with their risk tolerance and market outlook.
• The Benefit of No Overnight Risk: A primary advantage of zero DTE strategies is the elimination of overnight risk, as all positions are closed by the end of the trading day.
• The Impact of Regulation: The upcoming lifting of the "Pattern Day Trading" (PDT) rule is expected to significantly increase retail participation and volume in these markets.

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Notable Quotes

• "The appeal of short out of the money premium is that you don't need to be right. Simply not too wrong."
• "You don't have to be a computer. It's very tricky when you've got 10 losses or your max drawdown... I do believe you need some level of market awareness."
• "In a persistently rising market, repeated short call exposure meant repeated losses."

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Synthesis and Conclusion

The study highlights that while zero DTE SPX options offer high liquidity and accessibility, the choice of strategy and management is critical. Short put verticals are the most robust strategy in a bullish environment, offering high win rates and manageable drawdowns. Iron condors are viable for directionally agnostic traders, provided they are disciplined about taking profits early (e.g., at 50%) rather than holding through the close. Conversely, short call verticals are high-risk and generally detrimental in the current market climate. The overarching takeaway is that while mechanical rules provide a baseline for success, traders must maintain the flexibility to adapt to changing market conditions to avoid significant drawdowns.