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Live open interest analytics

Read the market's open interest before you trade

Live OI momentum, dealer positioning (GEX), option chain, futures, straddle/strangle premiums and an AI-grounded daily read — for NIFTY, SENSEX, stock options and futures, in one clean, distraction-free workflow.

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OIData Trending OI showing change in call and put OI, strength, direction and sentiment for each interval
Refreshes ~every 30 seconds

Live data

Streams via your own broker connection, refreshing about every 30 seconds through market hours.

Actionable signals

OI shifts, PCR, sentiment and key support/resistance levels.

Multi-market

Index options, stock options and futures in one place.

Distraction-free

Fast, clean UI built for quick reads — no clutter.

Professional tools, one simple plan

A complete open-interest suite — everything you need for fast, data-driven decisions.

OIData Dashboard showing GIFT NIFTY implied open verdict and an overnight news sentiment read
Dashboard

Start your day with an AI-grounded market read

A twice-daily, AI-assisted read of the market — GIFT NIFTY implied open, an overnight news digest and a bullish/bearish headline breakdown so you walk in prepared.

  • GIFT NIFTY implied next open with a clear verdict
  • Overnight news sentiment, scored and summarised
  • Bullish vs bearish headline split at a glance
Try it free
OIData Market Mood Index fear and greed gauge in the fear zone with change vs NIFTY and MMI history chart
Market Mood

Know the street's fear & greed in one number

A 0–100 Market Mood Index built from seven market internals — FII index-futures positioning, India VIX, option skew, Nifty momentum, market breadth, 52-week strength and gold demand — updated live during the session.

  • Four zones with clear contrarian guidance
  • Change vs NIFTY since yesterday, last week and last month
  • Two years of MMI-vs-NIFTY history with extreme-zone markers
Try it free
OIData Dealer Positioning showing the net GEX profile by strike with Call Wall, Put Wall and Gamma Flip level for NIFTY
Dealer Positioning

See where hedging pressure sits with the live dealer cockpit

Net GEX by strike with the walls, the corridor between them and the gamma flip — updated every minute through the session, with a timeline you can replay. Pin conviction says which strike is pulling price and how much to trust it; the hedge ladder shows what dealers must trade at each price step.

  • Live every minute: walls, flip, pin conviction, gamma concentration
  • Hedge ladder, IV-shock and time-to-expiry sliders, 30-session regime river
  • Indices and any F&O stock, with DEX, Vanna and Charm views
Try it free
OIData Trending OI table with Call and Put OI change, PCR, direction and day high/low breaks
Trending OI

Track live open interest momentum

See how Call and Put OI shift across strikes in real time, with direction, net PCR, sentiment and automatic day high/low break alerts.

  • Call vs Put OI change across selected strikes
  • Direction, net PCR and sentiment per interval
  • Day high/low break signals as they happen
Try it free
OIData Option Chain with max pain, support and resistance, PCR and OI interpretation
Option Chain

A compact, decision-ready option chain

Strike-wise Calls and Puts with OI, OI change, IV, volume and PCR — plus max pain, support/resistance, built-in long/short build-up interpretation, a Replay mode that rewinds any recorded session minute by minute, and Strike History for any strike day by day from listing to expiry.

  • Max pain, support and resistance highlighted
  • Long/short build-up interpretation per strike
  • Replay mode — scrub any session minute by minute
Try it free
OIData straddle and strangle premium chart with underlying spot and combined OI overlay
Straddles & Strangles

Watch premium move on straddles & strangles

Track ATM straddle and custom strangle premium through the day against the underlying spot and combined OI — ideal for premium-selling and decay strategies.

  • ATM auto-detection with straddle and strangle modes
  • Premium plotted live against the underlying spot
  • Combined CE + PE open interest overlay
Try it free

And more, included

Volatility, Expiry Day, the Opening and Closing Auction trackers, Seasonals, Options Activity, the GEX Screener, Futures OI and OI Stats round out the suite — Market Activity and Holidays are free for everyone.

OIData Futures OI showing futures basis and annualised carry, Session Positioning totals for the four build-ups with a net session read, and an interval table with OI churn, level breaks, a Qty/Lots toggle and OI interpretation

Futures OI

Intraday interval buckets with OI churn, level breaks and long/short build-up interpretation, plus cumulative session totals for each build-up and OI in lots or quantity. Futures basis / cost-of-carry read with a 60-day percentile included.

Explore
OIData OI Stats bar chart of Call and Put open interest by strike with a time slider

OI Stats

Visual Call/Put OI at every strike with an intraday time-slider replay and OI-change overlay.

View stats
OIData Strike History showing one NIFTY strike's call and put premium lines over open interest bars since listing, with the day-by-day ledger below

Strike History

Any strike's call and put, day by day, from the contract's first session to expiry — premium over open interest on a chart, the full ledger with the build-up reading underneath, expired contracts included.

Trace a strike
OIData Volatility dashboard with India VIX, volatility risk premium, IV term structure and 25-delta skew

Volatility

India VIX with the volatility risk premium, the IV surface across strike and expiry, term structure, 25-delta skew and an option-implied probability distribution.

Explore
OIData Expiry Day toolkit showing ATM straddle decay against its theoretical curve and the expected-move band

Expiry Day

The pin magnet funnel with live pin conviction, ATM straddle decay against its theoretical curve, an expected-move band with historical hit-rate and max-pain drift through the session.

Explore
OIData Open Auction Session tracker showing the 09:00–09:15 auction phases, the opening print against the previous auction close and futures-implied cash, and the 09:30 gap verdict

Opening Auction

The 09:00–09:15 opening auction phases, the opening print vs yesterday's auction close, futures-implied cash and GIFT NIFTY, and the 09:30 gap verdict.

Track the open
OIData Closing Auction Session tracker showing the 15:15 index freeze, the auction print against futures-implied cash and the expiry settlement monitor

Closing Auction

The 15:15 freeze, the auction print vs futures-implied cash, expiry-day settlement risk and print-reversion history.

Track the close
OIData Seasonals chart overlaying years of NIFTY percentage paths January to December with month-by-month average tiles

Seasonals

Every year's % path overlaid Jan–Dec for indices, India VIX and F&O stocks — with month-by-month averages and up-rates.

Compare years
OIData Options Activity showing unusual index option volume flagged as opening flow or churn

Options Activity

Unusual per-strike volume bursts vs the session median, tagged as fresh opening flow or churn, with session extremes.

See activity
OIData stock GEX screener table ranking NSE F&O stocks by net gamma exposure

GEX Screener

Stock-level gamma exposure across ~200 NSE F&O names, live through the session — short-gamma names, walls, pins and each name's intraday gamma trend, one click into its cockpit.

Scan stocks
OIData institutional activity showing today's FII and DII net flows, month- and year-to-date totals and a daily net-flow chart

Market Activity Free

FII, DII, Pro and Client positioning across cash and F&O — daily, weekly, monthly and yearly.

Explore
OIData market holidays 2026 calendar with closed and open exchanges

Market Holidays Free

NSE & NFO holiday calendar with closed/open exchanges and session details.

View calendar

Up and running in three steps

Sign in, link your own broker account when prompted, and analyze — nothing to install.

Step 1

Create a free account

Sign in with Google in seconds. Every new account gets a free daily preview of all live tools.

Step 2

Choose your view

Pick an index or stock, the expiry, time interval and the strikes you want to track.

Step 3

Read the signals

Watch live OI changes, PCR, sentiment and day high/low breaks — then make your call.

Bring your own broker — 30 supported

You connect with your own broker API key — market data streams straight from your own SEBI-registered broker account into the analytics. Broker connections are being enabled in phases, and OIData never places orders or enables trading.

Zerodha
Groww
Upstox
Angel One
Dhan
Fyers
5paisa
mStock
Kotak Neo
HDFC Sky
Motilal Oswal
IIFL Capital
Alice Blue
Flattrade
Shoonya
Firstock
Rupeezy
Pocketful
Tradejini
TradeSmart
Zebu
Compositedge
Jainam
Arrow
Infinn
ProStocks
Anand Rathi
Rmoney
Indiabulls Securities
Wisdom Capital

Broker names and logos belong to their respective owners; no affiliation or endorsement implied.

Simple, transparent pricing

Start free. Upgrade only when you're ready.

Free

₹0/month

3-minute daily preview of every tool, plus unlimited Market Activity & Holidays.

Start for free
Most popular

Ultimate

₹89/month

Unlimited access to every tool — dashboards, dealer positioning, volatility and expiry analytics, screeners, alerts, briefs and replay.

Get Ultimate
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Follow the analysis, live

We break down open interest, market structure and the daily setup on YouTube. Come follow along — it's free.

YouTube

Frequently asked questions

Everything you need to know before you start.

OIData is designed around your own broker connection: you link a supported SEBI-registered broker (Zerodha, Groww, Upstox, Dhan, Fyers and more) from the in-app Connect with a Broker prompt, and OIData displays and analyses the market data available through your own broker account. Broker connections are being enabled in phases — until your broker's link is active, your account keeps working as-is. OIData itself is not a broker, has no broker affiliations and never places orders.

NIFTY and SENSEX index options, stock options and futures — across Trending OI, Option Chain (live and day-replay views), Futures OI, Straddles & Strangles, OI Stats, the F&O Buildup Screener, FII/DII/Pro/Client market activity, and a Market Mood Index that reads sentiment across the whole Nifty 500. Plus the live Dealer Positioning cockpit (net GEX, Call/Put Walls, Gamma Flip, pin conviction and the hedge ladder, updated every minute), a Volatility dashboard with the IV surface, an Expiry Day toolkit with the pin magnet funnel, Options Activity, a live stock-level GEX Screener across ~200 NSE F&O stocks, Open and Closing Auction Session trackers, and Seasonals — year-over-year % paths for indices, India VIX and every F&O stock.

Yes. Create alert rules (PCR crosses, OI spikes at a strike, max-pain shifts, spot near an OI wall, GIFT pre-open gaps) and get pinged in-app or on Telegram. You can also opt into a pre-open brief and an end-of-day digest by email or Telegram.

Yes. During market hours the data shown through your broker connection refreshes roughly every 30 seconds, or as soon as new data is available.

A 3-minute daily preview with full access to every live tool, plus unlimited access to Market Activity (FII/DII) and the Market Holidays calendar.

Ultimate is ₹89 per month for unlimited access to all tools. You can cancel anytime from your account.

No. OIData is an open-interest analytics tool, not a SEBI-registered investment adviser. We present data and signals for your own research and do not provide buy or sell recommendations.

Disclaimer: OIData is an independent, third-party analytics tool. It is not a SEBI-registered investment adviser, research analyst, or stockbroker. The data, charts, signals and AI-generated reads presented on this platform are for informational and educational purposes only and do not constitute buy, sell or hold recommendations for any security. Trading in derivatives involves substantial risk and is not suitable for all investors. Users should consult a qualified financial adviser before making any investment decisions. Past performance is not indicative of future results.

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