OI Interpretation in Options Analytics helps you understand how option strike prices and Open Interest (OI) are behaving together for a selected underlying and expiry. Instead of analysing raw OI numbers, it classifies strikes into clear market conditions so you can quickly identify whether positions are being built or exited — and on which side.
This feature is available on FYERS Web and the FYERS App.
OI Interpretation displays option strikes of the selected underlying and expiry that meet specific price–OI behaviour conditions during the selected time interval. Each strike is grouped into one of the following categories:
| Category | Price movement | Open Interest movement | What it typically indicates |
|---|---|---|---|
| Long build-up | Increasing | Increasing | New long positions are being created |
| Long unwinding | Decreasing | Decreasing | Existing long positions are being closed |
| Short build-up | Decreasing | Increasing | New short positions are being created |
| Short covering | Increasing | Decreasing | Existing short positions are being closed |
If a selected option strike shows a rise in price along with an increase in Open Interest during the chosen interval, it will appear under Long build-up.
Similarly, if price falls while Open Interest increases, it will be classified under Short build-up.
Last updated: 24 Feb 2026