Multi Strike OI in Options Analytics lets you track Open Interest (OI) movement across multiple option strikes simultaneously over time for a selected underlying and expiry.

This view helps you compare how participation is changing across strikes, making it easier to monitor where activity is building or fading during the trading session.

Available on FYERS Web and FYERS App.

What does Multi Strike OI show?

Multi Strike OI displays a time-based chart of Open Interest for multiple option strikes of the selected underlying and expiry.

You can view data under three modes:

• Active by OI – strikes with the highest Open Interest activity
• Active by Volume – strikes with the highest trading volume
• Custom strikes – manually selected strikes (up to 10 strikes)

Each selected strike is plotted as a separate line, allowing you to compare how OI evolves over time.

How to use Multi Strike OI?

Use this view to:

• Track how OI changes across multiple strikes together
• Compare the relative participation between strikes
• Identify shifts in focus as the market price moves
• Monitor OI build-up or unwinding during the session

This view is designed purely for analysis and comparison, not for trade execution.

Steps to access Multi Strike OI

On FYERS Web

1. Go to Options
2. Select Analytics
3. Click Multi Strike OI
4. Choose the Underlying and Expiry
5. Select Active by OI, Active by Volume, or Custom strikes

On FYERS App

1. Go to Options
2. Tap Analytics
3. Tap Multi Strike OI
4. Choose the Underlying and Expiry
5. Select Active by OI, Active by Volume, or Custom strikes

Steps to use Custom strikes

1. Tap Custom strikes
2. Select strikes from the option chain
3. You can select up to 10 strikes at a time
4. Tap Done to apply the selection

The chart will update to show OI movement only for the selected strikes.

Example

If OI at the 26,000 and 26,100 strikes increases steadily while nearby strikes remain flat, it indicates rising participation at those levels for the selected expiry.

Important notes

• Multi Strike OI is a visual analysis tool only
• Orders cannot be placed from this view
• A maximum of 10 strikes can be selected under Custom strikes
• The chart shows OI movement, not price direction
• OI values update based on the selected interval and market activity