Weekly vs Monthly Expiry Options
Blog by Aliceblue News Desk
11 August 2026
6 minutes
Weekly and monthly expiry options are different mainly because of time. Weekly options are cheaper and lose value faster, while monthly options cost more but give more time for the trade to move.
Table of Contents
- What Is Weekly vs Monthly Expiry in Options Trading?
- How Weekly and Monthly Expiry Options Work
- Practical Example With Numbers
- Key Features of Weekly and Monthly Expiry Options
- Advantages
- Risks and Limitations
- Tips for Beginners
- Weekly vs Monthly Expiry Comparison
- Common Mistakes to Avoid
- Who Typically Uses Weekly or Monthly Expiry?
- Conclusion
- Frequently Asked Questions
If you open an options chain and see two expiry dates for the same strike, one close by and one later in the month, the choice can feel confusing. The difference comes down to how much time is left, because that changes the premium, the speed of decay, and how the contract behaves.
What Is Weekly vs Monthly Expiry in Options Trading?
An options contract has an expiry date. That is the last day the contract trades before it is settled.
Weekly expiry options expire every week. Monthly expiry options expire once a month on the last expiry day of that month. In India, this matters because Nifty, Bank Nifty, Sensex, and other index contracts do not all follow the same schedule, so the exact expiry depends on the exchange and the contract type.
This is where expiry and settlement rules matter.
How Weekly and Monthly Expiry Options Work
The contract itself does not change. What changes is the time left until expiry.
- The exchange lists the contract with a fixed expiry date.
- The premium is set based on strike price, market price, time left, and volatility.
- As time passes, the option loses value if the market does not move enough.
- Weekly options lose value faster because there are fewer days left.
- Monthly options lose value more slowly because they have more time left.
That daily loss in value is called theta decay.
Practical Example With Numbers
Suppose Nifty is at 25000 and you are looking at a 25100 call option.
A weekly contract may cost 60 rupees per share. If the lot size is 65, the total cost is 3900 rupees.
A monthly contract on the same strike may cost 180 rupees per share. For the same lot size, the total cost is 11700 rupees.
If the market moves up quickly, the weekly contract may react faster. If the market move takes longer, the monthly contract may still hold value better because there is more time left.
This is why the same idea can produce very different results depending on the expiry chosen. If you want to estimate charges before placing a trade, the Brokerage Charges Calculator Online can help you check costs in advance.
Key Features of Weekly and Monthly Expiry Options
- Weekly options expire sooner, so they react faster to price movement.
- Monthly options have more time value, so they usually cost more.
- Weekly contracts lose value faster if the market does not move soon.
- Monthly contracts give more room for the trade to develop.
- Weekly expiry is usually watched more closely because the pace is faster.
- Monthly expiry is usually used when a trader wants more time for the move to happen.
Advantages
Weekly expiry options are useful when someone wants a cheaper entry and a short time frame. They are often used when the expected move is close at hand.
Monthly expiry options give the trade more time. That can make them easier to follow if the market needs more days to move.
Risks and Limitations
Weekly options can lose value very quickly. If the market does not move soon, the premium can fall even if the broader view was not completely wrong.
Monthly options cost more, so the amount at risk is higher. Some traders also hold on too long because they think extra time will fix a weak trade. That often does not happen.
Tips for Beginners
- Check the expiry date before placing any options trade.
- Read the option chain slowly and note how much time is left.
- Start with simple strike prices so the contract is easier to follow.
- Do not assume that a longer expiry always means lower risk.
- Look at the premium and the lot size together, not separately.
- Learn the basic expiry rules before trying to place a live order.
If you are still getting used to trading, it helps to read the basics first and then move to expiry-based contracts later. That keeps the learning process more manageable.
Weekly vs Monthly Expiry Comparison
Point | Weekly Expiry | Monthly Expiry |
Expiry timing | Every week | Once a month |
Premium | Lower | Higher |
Time left | Very short | Longer |
Price decay | Faster | Slower |
Monitoring need | More frequent | Less frequent |
Entry cost | Lower | Higher |
Common Mistakes to Avoid
- Choosing a contract without checking the expiry date.
- Ignoring how fast weekly options lose value.
- Assuming monthly options are always safer.
- Forgetting to check the lot size before calculating the total cost.
- Treating options like a quick guess instead of a contract with clear rules.
Who Typically Uses Weekly or Monthly Expiry?
Weekly expiry is usually watched by traders who want a short time frame and can track the market closely. Monthly expiry is usually watched by traders who want more time and less pressure to check the position every moment.
Beginners often find monthly expiry easier to understand at first because the pace is slower. Weekly expiry feels faster and more sensitive because time passes quickly when the contract is close to expiry.
Conclusion
Weekly and monthly expiry options serve different needs in the Indian market. Weekly contracts are cheaper and move faster, while monthly contracts cost more and give more time. The main thing to understand is that expiry changes the way an option behaves, especially through time decay. Once that is clear, it becomes easier to read the option chain and understand what the contract is really doing.
Frequently Asked Questions
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