Why Traders Sell Both Calls and Puts

Key Concepts

Delta: A measure of an option's sensitivity to changes in the underlying asset's price. (30 delta options were specifically analyzed)
Strangle: An options strategy involving simultaneously selling an out-of-the-money call and an out-of-the-money put with the same expiration date.
Iron Condor: A neutral options strategy combining a short call spread and a short put spread.
Outlier Risk (Tail Risk): The potential for extreme, unexpected losses in an options strategy.
Coefficient of Variation: A statistical measure of the dispersion of data points around their mean, used here to assess risk-adjusted returns.
Premium: The price paid for an option contract.
Win Rate: The percentage of trades that result in a profit.
P&L (Profit and Loss): The financial gain or loss from a trade.
Stairway to Heaven/Elevator Down: A market dynamic where prices rise gradually but can fall rapidly.

Calls vs. Puts: A 5-Year Risk Analysis (2020-2025)

This analysis examines the performance of selling 30-delta calls versus 30-delta puts using a 45-day time to expiration and managing positions at 21 days, over the period of 2020-2025. The study aimed to identify where the real risk resides in these strategies, particularly within a predominantly bullish market environment.

Market Context & Bull Market Bias

The analysis acknowledges a significant bull market bias over the past 10 years, and specifically a 65% upward movement within the 45-day windows studied (compared to a typical 47-53% average). This context is crucial, as it inherently favors put selling and disadvantages call selling. The speakers emphasize the importance of recognizing hindsight bias when interpreting historical data, stating, “Everything we’re looking at here is hindsight.”

Data & Methodology

The study involved 2900+ trades, analyzing key metrics for both calls and puts:

Win Rate: Percentage of profitable trades.
Average P&L: Average profit or loss per trade.
Worst Loss: The largest single loss incurred.
Average Premium: The average price received for selling the option.
Standard Deviation of P&L: A measure of the volatility of returns.
Return on Capital: Profit generated relative to the capital invested.
Coefficient of Variation: Risk-adjusted return (standard deviation divided by average P&L).

Performance Comparison: Calls vs. Puts

The data revealed significant differences in risk profiles:

Calls: Exhibited a 54% win rate. While losing more frequently, the potential losses were less severe. Selling calls proved relatively neutral in a strong bull market, essentially breaking even. The short delta on calls provided a benefit during periods of market consolidation or minor pullbacks.
Puts: Demonstrated a higher potential for significant losses due to the “stairway to heaven, elevator down” market dynamic. The outlier risk on the put side – a large, unexpected market decline – was substantially higher than the corresponding risk on the call side. The study highlighted that while most put sales generated modest profits, a single large adverse move could wipe out those gains. This is described as “free money until it isn’t.”

Outlier Risk & Tail Risk

A key finding was the disparity in outlier risk. The analysis showed that the “tail” – the potential for extreme losses – was significantly larger on the put side. This is attributed to the tendency for markets to rise gradually but fall rapidly. The April tail (representing the potential for a large downside move) was identified as a critical factor skewing the put’s risk profile.

Strategic Implications & Hedging

The speakers discussed how selling calls, despite being less profitable in a bull market, can be strategically beneficial. It was suggested that selling calls can:

Extend Position Hold Times: The income generated from selling calls can allow traders to hold onto positions longer, potentially capturing further gains.
Facilitate Other Positions: The premium received can be used to fund other, potentially higher-rewarding, strategies.
Provide Psychological Benefit: Taking profits on short calls during market pullbacks can provide a positive emotional experience, counteracting the stress of losses on the put side. As stated, “you get a down move and you take off some short calls. It's a good feeling.”
Hedge Against Downside: Selling calls can act as a partial hedge against losses on short puts, particularly in volatile markets.

The analysis also touched on the concept of rolling puts upwards (increasing the strike price) to capture more premium, but acknowledged the subjectivity and complexity of such strategies.

Time Horizon & Market Dynamics

The speakers cautioned against extrapolating historical data too far into the future, emphasizing that market conditions change. They noted that data from 2005 is less relevant due to shifts in the economic, political, and technological landscape. They also highlighted the importance of focusing on recent market behavior when evaluating options strategies.

The Importance of Being "Both-Sided"

A central argument was the necessity of being involved in both call and put selling to avoid being overly exposed to market direction. The speakers warned against being exclusively short puts, as this leaves a trader vulnerable to a significant market downturn. They emphasized the need to “ring the register on both directions” and maintain a balanced portfolio.

Conclusion

The study demonstrates that while calls may lose more frequently, the potential for catastrophic losses is significantly higher when selling puts. In a bull market, selling calls may appear less profitable, but it can offer strategic advantages, including extended position hold times, hedging benefits, and psychological relief. The analysis underscores the importance of understanding the risk profiles of different options strategies and maintaining a diversified approach to trading. The key takeaway is that “same delta, different damage” – seemingly identical trades can have vastly different outcomes depending on the underlying asset and market conditions.