Option Chain

What the option chain shows

The full option chain for NIFTY, BANK NIFTY, SENSEX and every F&O stock, at any listed expiry. Calls sit on the left, puts on the right and strikes run down the middle, with the at-the-money row highlighted and a line marking spot. A row of chips across the top sums up the whole chain — max pain, the resistance and support strikes, total call and put open interest, the put-call ratio — and each OI cell carries a coloured stripe naming what its positioning means. Replay rewinds any recorded session, so you can watch how the chain was built rather than only seeing where it ended up.

Watch the tutorial

Option Chain, section by section, in a 4-minute video, also in Hindi, Tamil, Telugu, Kannada and Malayalam.

4:11

How to read the columns

• OI — how many contracts are still open at that strike — standing commitment, not today's activity. The bar behind each number grows away from the strike, each side scaled to its own largest OI, so the walls stand out without reading digits.
• OI Chg — today's change in that number, with the percentage beside it. This is the column that carries information; the running total mostly reflects history.
• The stripe on each OI cell — what today's change in that contract's open interest and premium point to: OI up with premium up is Long build-up, OI up with premium down Short build-up, OI down with premium up Short covering, OI down with premium down Long unwinding. Each has its own colour (the key sits above the table), a cell where either did not change has no stripe, and hovering a cell names it.
• LTP, Volume and IV — the last traded premium with its change for the day, contracts traded today (volume above OI means the position at that strike turned over entirely this session), and implied volatility per strike — where the market is charging most for movement.
• The summary chips — max pain; Resistance and Support, the strikes with the most call and the most put open interest; total call and put OI; the sum of call and put premiums; and PCR, total put OI over total call OI. Sentiment is that PCR read: Bullish above 1, Bearish below 1.
• OI concentration — the heaviest call strike often acts as resistance and the heaviest put strike as support, because writers defend where they are exposed.
• Greeks, units and export — the Greeks switch adds delta, theta and vega for every strike; Qty or Lots switches open interest and volume between raw quantity and lots; CSV downloads the chain as you see it.
• Live or Replay — Live keeps the chain current through the session. Replay picks a recorded session and steps through its stored snapshots, so you can see which strikes were built first.
• IV Skew — under the chain, implied volatility of calls and puts across strikes around spot, with ATM IV, its IV rank and its percentile over the recorded sessions. A steep put side means downside protection is in demand; a low IV rank means options are cheap against their own recent history.
• Strike History — click any strike to see its call and put day by day since the contract was listed — premium, open interest and what each day's combination meant. The quick look shows the latest sessions; the Strike History page has the whole life and a chart.

Frequently asked questions