weekly expiry
India's weekly index options expire more often than you think.
Nifty, BankNifty, FinNifty, MidcapNifty, and Sensex all have separate weekly expiry days. Knowing which expires when — and how to read the session — is the starting point for every expiry-day trade.
What you'll get here
How traders use this
Three things most traders want to understand before moving into live tools or placing a trade.
Multiple indices, multiple expiry days
In India, each index options contract has its own weekly expiry day — Nifty on Thursday, BankNifty on Wednesday, FinNifty on Tuesday, MidcapNifty on Monday, and Sensex on Friday. Knowing this prevents the common mistake of using data from one series to plan a trade in another.
What changes as expiry gets closer
Time decay (theta) accelerates sharply in the final 24 hours before expiry. Strike-level open interest concentrates around the most-traded levels. PCR can shift quickly as traders close or roll positions, making live chain context more useful than a static view.
How QuantFlo fits into an expiry session
QuantFlo shows live OI, PCR, max pain, and strike pressure in one place. During a weekly expiry session, this lets you see whether the market is getting pinned, expanding, or shifting before you decide whether to stay neutral or position for movement.
What you can do next inside QuantFlo
These are the core workflows most visitors use after landing on this page.
Track time-sensitive market structure
Weekly expiry is where time decay, strike pressure, and fast shifts in positioning become much more visible in the session.
Connect expiry to strategy selection
Once you can see how the market is behaving, it becomes easier to compare which strategies fit the session instead of treating every day the same.
Use weekly expiry as a hub
This page works as the bridge between broader expiry research, instrument-specific pages, and specific strategy workflows.
When this page is most useful
These are common situations where traders move from reading this guide into live planning, chain analysis, or the full terminal.
QuantFlo Interface

Key facts at a glance
Nifty 50
Every Thursday
NSE — weekly series
Bank Nifty
Every Wednesday
NSE — weekly series
FinNifty
Every Tuesday
NSE — weekly series
MidcapNifty
Every Monday
NSE — weekly series
Sensex
Every Friday
BSE — weekly series
Take the next step with live tools.
If you want to move from research into action, these are the fastest paths into QuantFlo's live planning and market-context tools.
Track Weekly Expiry Live
Open live strikes, OI, and positioning data.
Explore Nifty Expiry Day
See Nifty-specific expiry context: strike positioning, OI concentration, and PCR during the session.
Open QuantFlo Terminal
Use the full app if you want live market context, positioning, and planning in one place during expiry.
Related guides and tools
Explore adjacent topics, compare related setups, or jump into the tool that best matches what you're trying to do.
Frequently asked questions
Which day does Nifty expire every week?
Nifty 50 weekly options expire every Thursday. If Thursday is a market holiday, the expiry shifts to the previous trading day.
What is the weekly expiry schedule for Indian index options?
As of current NSE/BSE schedules: Nifty 50 expires every Thursday, Bank Nifty every Wednesday, FinNifty every Tuesday, MidcapNifty every Monday, and Sensex (BSE) every Friday.
Why do option premiums fall so fast near expiry?
Time decay (theta) accelerates as an option approaches expiry. In the final day of a weekly series, OTM options can lose most of their premium rapidly, which is why expiry sessions tend to be more volatile for short-premium traders.