How do I use historical CE and PE open interest to analyze NSE options?

By scanning CE and PE open interest (OI) changes over 80 trading days for a given strike price, you can identify where institutional buyers and sellers have been active. Rising CE OI at a strike suggests call writers adding positions (resistance). Rising PE OI indicates put writers adding (support). Comparing historical CE vs PE OI trends is a key technique for identifying support/resistance zones in Nifty, BankNifty and individual stocks.

What is OPTIDX vs OPTSTK in NSE F&O?

OPTIDX refers to options on indices like Nifty 50, Bank Nifty, Midcap Nifty, and Fin Nifty. OPTSTK refers to options on individual stocks (equity options) like Reliance, HDFC Bank, Infosys, and other F&O-eligible stocks. Our historical scanner lets you switch between OPTIDX and OPTSTK to analyze index options or stock options independently.

What does OI Change Per Trade mean for options?

OI Change Per Trade (OI_CHG_PR_VAL_PER_TRADE) measures how aggressively new positions are being built relative to total trading activity at a specific strike. A high positive value means institutions are adding fresh positions (high conviction), while a near-zero value suggests mostly day trading without fresh position creation. Tracking this historically helps identify where smart money builds positions over time.

What is the difference between Day Wise and Gross Aggregation in historical options data?

Day Wise data shows the net daily figures for each contract — what changed on that specific trading day. Gross Aggregation (GROSS_ columns) sums up all intraday transactions including both legs of squaroff trades, giving a larger absolute number that reflects total market activity including intraday. Day Wise is better for studying overnight position changes; Gross is better for measuring overall liquidity and participation.

How many days of historical options data is available?

Our scanner displays up to 80 trading days of historical data per options contract (symbol + expiry + strike price combination). The reference date selector lets you navigate to any available trading date to view that contract's history up to that point. Data is sourced from NSE's official EOD files.

NSE Historical Options Data — Nifty 50 CE PE OI Chain |...

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Day Wise Gross Aggregation

Metric

Select Date (Past Data Available)

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Monthly expiry only

Expiry Date

Strike Price

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NSE Historical Options Data — Strike-wise CE & PE OI Analysis

This scanner provides NSE historical options data for every active options contract on the National Stock Exchange of India. Select any symbol from OPTIDX (index options like Nifty, BankNifty, FinNifty) or OPTSTK (stock options), choose your expiry and strike price, and visualize up to 80 trading days of CE and PE open interest history side-by-side. Data is sourced directly from NSE's official end-of-day (EOD) files and updated daily.

📈 CE & PE OI History 🎯 Strike-wise Analysis 🏦 OPTIDX & OPTSTK 📊 80-Day Timeline 🔁 OI Change Per Trade 💹 Day Wise & Gross Data 📌 Pin & Compare Contracts

Historical Options Data — Frequently Asked Questions

What is NSE historical options data and how is it useful?

NSE historical options data consists of daily end-of-day snapshots of all listed options contracts on NSE — including open interest (OI), traded quantity, premium value, number of trades, and derived metrics. By studying this data over time, options traders can identify where institutional money has been consistently building or unwinding positions at specific strike prices, understand expiry dynamics, and track how OI evolves across contract lifespans.

How do I analyze CE and PE historical OI together on NSE?

Our scanner plots CE (Call) and PE (Put) OI changes side by side as grouped bar charts over the last 80 trading days for the selected strike. Rising CE OI at a strike price indicates call writers are adding fresh short positions (acts as resistance). Rising PE OI shows put writers are adding (acts as support). When CE OI falls sharply, call writers are covering (short covering — bullish signal). The interplay between CE and PE OI history is one of the most reliable indicators of institutional positioning in NSE F&O.

What is the difference between OPTIDX and OPTSTK?

OPTIDX covers index options — Nifty 50, Bank Nifty, Nifty Midcap Select, Nifty Financial Services (FinNifty), and Sensex. These are settled in cash and are the most liquid instruments in NSE's F&O segment, dominated by institutional and HNI participants. OPTSTK covers individual stock options for F&O-eligible companies. Stock options tend to have lower liquidity but can show very concentrated institutional activity around corporate events, earnings, and sector themes.

Which metric should I track in historical options data?

OPEN_INT — Raw open interest in contracts. Use to identify absolute positioning levels.
OPEN_INT_CHG — Daily change in OI. Positive = new positions added; negative = positions closed.
OI_CHG_PR_VAL_PER_TRADE — OI change per unit of premium value traded. High = institutional fresh positions.
TRD_QTY — Total traded quantity. Use to filter high-activity strikes.
NO_OF_TRADE — Number of trades. High trades + low OI change = retail churning.
PR_VAL — Premium value (₹ crores). Shows absolute money flow into the contract.

What does "Monthly Expiry Only" filter do?

NSE introduced weekly options expiries for major indices. The Monthly Expiry Only toggle filters expiry dates to show only the last Thursday of each month — the traditional monthly expiry. Monthly contracts typically carry the highest open interest and are preferred for positional analysis. Disable this filter to also see weekly expiries, which are useful for short-term options strategies and delta-neutral trades.

What does Gross Aggregation show vs Day Wise data?

Day Wise data reflects the net end-of-day position — the difference between opening and closing OI for that trading session. It shows overnight position changes. Gross Aggregation (GROSS_ columns) sums up all buy and sell transactions including intraday squaroffs. A high gross but low day-wise OI change means a lot of intraday activity with minimal overnight carry — typical of retail or algorithmic day-trading. High gross OI change matching day-wise change indicates strong directional conviction with overnight holding.

How does Nifty 50 option chain history relate to Sensex index today?

The historical nse option chain open interest (OI) trends for Nifty 50 and BankNifty options are excellent barometers of institutional sentiment. Because large institutions trade across both nse bse exchanges, Nifty option writing historical patterns directly influence constituent stock prices, which in turn move the sensex index today. Options traders also watch early-morning global flows on sgx live to verify if historical support/resistance levels will hold or break on opening.

📈 NSE Historical Options Data Scanner

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NSE Historical Options Data — Strike-wise CE & PE OI Analysis

Historical Options Data — Frequently Asked Questions