Nifty at Crucial Levels — Watch Open Interest Before the Next Move
Mar 25, 2026
When Open Interest analysis is combined with price action it can be used in identifying key reversal points and crucial support zones.
Options Trading requires understanding of momentum, trend, time to expiry and range. Hence it becomes utmost important to know how to interpret Open Interest data especially for Options trader who trade based on support and resistance zone.
Nifty Daily chart with OI Data and Volume profile
What is Open interest?
Open Interest represents the total number of active (outstanding) contracts. This analysis gives traders an additional advantage for forming a powerful options strategy.
Key Things to remember
- Increasing OI with Rising prices → Bullishness (Long Buildup)
- Increasing OI with Falling prices → Bearishness (Short Buildup)
- Decreasing OI with Rising Prices → Loss of Bearish momentum (Short Covering)
- Decreasing OI with Falling prices → Loss of Bullish momentum (Long unwinding)
Along with this, it is important to understand that OI Data is also interpreted from the seller’s perspective which provides traders the insights about the big player activity in the given stock/index.
How support and resistance levels can be identified without the need of any indicator or tool
The left side of the middle bar highlighted in green shows CE open interest at different strikes (CE sellers) whereas the right side of the bar shows PE open interest at different strikes (PE sellers).
Example: Notice the green circles marked on the above chart, it highlights the current support and resistance levels the Index might face in the upcoming future.
Currently, CE sellers are increasing at 23450 strike which can act as a resistance to the Index in the upcoming future. A further break above the same level can push prices higher as CE sellers at 23450 will incur loss and which will further push prices higher towards 24000 level. While a 23000 has highest OI on the put side which can act as a support in the near future.
Support and Resistance as per OI data
- Support – 23000
- Resistance – 23450 – 23500 followed by 24000
In a nutshell, combining price action in accordance with the OI data can help a trader to identify possible resistance and support levels and create a trading strategy as per there need. This can also be applied on Intraday charts, however it’s a bit tricky and one needs to constantly pay attention on the OI data.
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