Published Dec 29, 2025 4 Min Read

Introduction

When it comes to options trading, strategies like diagonal spreads and calendar spreads are popular among traders seeking to optimise their returns while managing risks. Both strategies involve a combination of buying and selling options, but their mechanics and objectives differ significantly. Understanding these differences can help traders make informed decisions based on their market outlook and financial goals. 

SEBI Disclaimer: Investments in securities markets are subject to market risks. Please read all scheme-related documents carefully before investing. Bajaj Broking does not provide investment advisory services. Past performance is not indicative of future returns.

What is a Calendar Spread?

A calendar spread is an options trading strategy where a trader buys and sells options with the same strike price but different expiration dates. For instance, a trader might sell a near-term call option and simultaneously buy a longer-term call option at the same strike price. The goal is to benefit from time decay (theta) and volatility differences between the two options. This strategy is typically used when a trader expects minimal price movement in the underlying asset.

To explore opportunities in options trading, you can open a Demat Account. A Demat Account allows you to hold your securities electronically, simplifying the trading process. Learn more about the benefits of opening a Demat Account here.

What is a Diagonal Spread?

A diagonal spread is another options trading strategy where a trader buys and sells options with different strike prices and expiration dates. For example, one might purchase a long-term call option with a lower strike price and sell a near-term call option with a higher strike price. This strategy allows traders to capitalise on both time decay and directional price movement of the underlying asset. It is often used when traders expect moderate price movement over a specific period. 

Differences Between Diagonal Spreads and Calendar Spreads

Below is a comparison of diagonal spreads and calendar spreads based on key aspects:

AspectCalendar SpreadDiagonal Spread
Strike PricesSame strike price for both optionsDifferent strike prices for the options
Expiration DatesDifferent expiration datesDifferent expiration dates
ObjectiveBenefit from time decay and volatilityCapture time decay and directional price movement
Risk-RewardLower risk and reward potentialModerate risk with higher reward potential

Both strategies can be utilised depending on your market outlook and financial goals. Bajaj Broking’s Margin Trading Facility can help you leverage your capital more efficiently when deploying these strategies. With margin trading, you can amplify your buying power while managing your risk effectively.

For more on trading strategies, check out Commodity Trading here and understand Commodity Market Timings here.

Conclusion

Diagonal spreads and calendar spreads are powerful options trading strategies that cater to different market scenarios. While calendar spreads focus on time decay with minimal price movement, diagonal spreads allow traders to capitalise on both time decay and price movement. Choosing the right strategy depends on your financial goals, market outlook, and risk tolerance.

Bajaj Broking offers a comprehensive suite of tools, including a Demat Account, Trading Account, and Margin Trading Facility, to help you navigate the complexities of options trading.

SEBI Disclaimer: Investments in securities markets are subject to market risks. Please read all scheme-related documents carefully before investing. Bajaj Broking does not provide investment advisory services. Past performance is not indicative of future returns.

Frequently asked questions

What is a diagonal spread?

A diagonal spread is an options trading strategy where traders buy and sell options with different strike prices and expiration dates. The goal is to capitalise on varying time values and price movements of the options.

What is a calendar spread?

A calendar spread involves buying and selling options with the same strike price but different expiration dates. It is a strategy used to benefit from time decay and differing volatility levels.

How does a diagonal spread differ from a calendar spread?

While diagonal spreads use different strike prices and expiration dates, calendar spreads utilise the same strike price but different expiration dates. Diagonal spreads aim to capture both time value and price changes, whereas calendar spreads are generally focused on time decay advantages.

When should I use a diagonal spread?

A diagonal spread is ideal when you anticipate changes in volatility and movement in the underlying asset’s price over time. It is particularly useful for medium-term trades balancing risk and reward.

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Standard Disclaimer

Investments in the securities market are subject to market risk, read all related documents carefully before investing.

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