What is OI & IV? Simple Meaning, OI Analysis, Long-Short Buildup, IV Crush & Greeks Explained What is Open Interest (OI)? Open Interest (OI) means the total number of open futures and options contracts for a strike or instrument. It shows how many traders still have active positions. Example: If Nifty 22500 CE has OI … Continue reading What is Open Interest (OI)? Simple Explanation for India