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🔑 What is Open Interest?
- Open Interest (OI) represents the total number of outstanding option contracts that have not been settled.
- High OI indicates strong participation and interest at a particular strike price.
- It reflects where traders are placing their bets and where liquidity is concentrated.
📊 How to Identify Support & Resistance
1. Call Side (Resistance)
- The strike price with the highest call OI often acts as a resistance level.
- Reason: Sellers of call options expect the price to stay below this level. If the underlying approaches this strike, they may defend it, creating selling pressure.
Example:
If Nifty has the highest call OI at 22,000, traders expect resistance around 22,000.
2. Put Side (Support)
- The strike price with the highest put OI often acts as a support level.
- Reason: Sellers of put options expect the price to stay above this level. If the underlying approaches this strike, they may defend it, creating buying pressure.
Example:
If Nifty has the highest put OI at 21,500, traders expect support around 21,500.
📈 Practical Steps to Use OI for Support & Resistance
- Check the Option Chain: Look at the distribution of OI across strikes.
- Identify Highest Call OI: This is your potential resistance zone.
- Identify Highest Put OI: This is your potential support zone.
- Monitor Changes in OI: Rising OI strengthens the level; falling OI weakens it.
- Combine with Price Action: Confirm with candlestick patterns, volume, or technical indicators for reliability.
⚠️ Important Considerations
- Expiry Proximity: OI levels are more reliable closer to expiry.
- Shifts in OI: Sudden changes may indicate shifting sentiment.
- Market Context: Always consider broader trends, news, and volatility.#WatchOutFor#StockInNews#MacroViews#EquityResearch#TechnicalViews
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