OrderflowOpen Interest Sense (OI Sense)

Open Interest Sense (OI Sense)

Open Interest Sense is an indicator in GoCharting created to allow intraday traders to gauge the direction of the market in realtime mode

It uses a combination of price, volume and open interest data to plot a band of colors as shown below

Image

OI Sense Color Bands

These colors bands are as follows

  • Short Covering (Orange)
  • Long Unwinding (Cyan)
  • Short Build Up (Red)
  • Long Build Up (green)

How are these Color Bands created

As shown in the chapter on Open Interest, we know the below logic holds true in the market

Open Interest Matrix

Building on this logic, we have created an extension of it which takes the Price movement % change over the course of the day along with OI % change over the course of same period to create the below rules

  • Short Covering: Price change > 0 & Open Interst Change % < 0
  • Long Unwinding: Price change < 0 & Open Interst Change % < 0
  • Short Build Up: Price change < 0 & Open Interst Change % > 0
  • Long Build Up: Price change > 0 & Open Interst Change % > 0

Below is an example of its use case. We see Gap down opening and showing early signs of Short Buildup on OI Sense

Image


Use Case

OI Sense analyses changes in open interest relative to price changes to determine whether OI is being built by longs or shorts. Rising OI with rising price = new longs; rising OI with falling price = new shorts. It is a powerful institutional positioning tool.

Strategy

Use OI Sense to confirm trend breakouts: when price breaks above resistance and OI Sense shows new long buildup (OI rising with price), the breakout has institutional conviction. When OI rises but price falls, the market is building short positions, a bearish confirmation signal.

Common Mistakes

Do not use OI Sense on instruments with very low options liquidity. Avoid reacting to every OI reading; focus on significant changes. Do not confuse rising OI with bullishness — direction must be interpreted relative to concurrent price movement.


✍️ Blog Articles