NIFTY 50 Option Chain — Live with Greeks, Max Pain & PCR
Live NIFTY option chain with Delta, Gamma, Theta, Vega, calculated max pain, put-call ratio, and the highest call and put OI strikes. Refreshes every minute during market hours.
The NIFTY option chain shows live call and put open interest, implied volatility and prices across strikes for the current expiry. The highest call OI marks resistance, the highest put OI marks support, and max pain is the strike where the most option value expires worthless. Strota refreshes it live through the trading session.
The NIFTY 50 option chain is the most-traded options book in the world by contract count. Understanding it is the price of entry for any serious Indian-market trader. Strota's NIFTY option chain page is engineered for that audience: live strikes, full Greeks per strike, calculated max pain, PCR, and the dominant OI strikes — all on one screen, refreshing every minute during market hours.
What separates a useful option chain from a noisy one is the layer of analytics on top of the raw strike-by-strike data. Strota computes max pain client-side from the same OI data you see in the chain, so the number you see is auditable. PCR is shown both as a current snapshot and as a 5-day trend. Greeks are calculated from live IV using Black-Scholes with a discrete-dividend adjustment.
The page covers both the current week's expiry (the most active) and the next monthly expiry, so you can see how positioning is distributed across the near and longer-dated chain.
What's in Strota's NIFTY option chain
Live strikes — every strike from 1,000 points below spot to 1,000 points above spot, updating roughly every minute during NSE market hours (9:15 AM to 3:30 PM IST).
Full Greeks per strike — Delta, Gamma, Theta, and Vega for both calls and puts at every strike. Computed from the latest implied volatility using the Black-Scholes model with the current discrete dividend yield baked in.
Open interest and OI change — both the absolute OI per strike and the day-over-day change, colour-coded for direction. This is the data that drives positioning analysis.
Implied volatility — current IV per strike, with the at-the-money IV highlighted as the 'NIFTY IV' headline.
Last traded price (LTP) and bid-ask — so you can see liquidity at each strike, which matters for any real trade.
How max pain is calculated
Max pain is the strike price at which the largest aggregate value of options expires worthless, i.e. the strike that hurts option buyers the most and rewards option writers the most. The theory is that on expiry day NIFTY 'gravitates' to this strike because option writers (often institutional) have incentive to defend it.
Strota's max pain calculation: for every candidate strike, compute the total intrinsic value of all calls and all puts if NIFTY closed at that strike. The strike that minimises the sum is the max pain.
Worked example: if max pain is 22,000 and current NIFTY spot is 22,150, the implication is that option writers would prefer NIFTY to drift down 0.7% by expiry. That's a directional bias, not a prediction — but in the last week of expiry the gravity is real and worth knowing.
The number is recomputed on every page refresh from live OI, so it moves as positioning shifts intra-day.
Reading the PCR (Put-Call Ratio)
PCR = total put open interest divided by total call open interest. A higher number means more puts are open relative to calls.
Counterintuitively, PCR is a contrarian indicator at extremes. When PCR is very high (above 1.5), too many traders are bearish and a short squeeze becomes more likely. When PCR is very low (below 0.7), too many traders are bullish and a correction risk rises.
The 5-day PCR trend matters more than today's snapshot. PCR rising from 0.8 to 1.3 over five sessions tells you institutions are building put protection — usually a sign of caution at index level. PCR falling from 1.4 to 0.9 means short positions are being unwound — often a sign of bullish sentiment building.
Strota shows both: today's PCR and the 5-day series.
The highest OI strike — your 'expiry anchor'
Two strikes worth watching on every option chain: the strike with the highest call OI (often the de-facto resistance for the week) and the strike with the highest put OI (often the de-facto support).
Why? Because the strike with the highest call writing represents the level institutions are most actively betting NIFTY won't cross — they collect premium if NIFTY stays below. Similarly the highest-put-OI strike is the level institutions are betting NIFTY won't fall below.
These aren't hard floors and ceilings, but on weekly expiry, NIFTY very often pins between them. Strota highlights both strikes on the option chain so you don't have to scan column-wise to find them.
Key takeaways
- Live NIFTY 50 option chain with full Greeks (Delta, Gamma, Theta, Vega) calculated from current IV.
- Max pain is computed transparently from the same OI data — auditable, not a black box.
- PCR is shown as today's snapshot plus a 5-day trend — the trend matters more than any single value.
- Highest call OI strike acts as weekly resistance; highest put OI strike acts as weekly support.
- Covers the current week's expiry and the next monthly expiry.
- Refreshes every minute during NSE market hours (9:15 AM to 3:30 PM IST).
Frequently asked questions
How often does the NIFTY option chain refresh?
Roughly every 60 seconds during NSE market hours (9:15 AM to 3:30 PM IST). Outside market hours the chain displays the last completed session's data.
What is max pain in NIFTY options?
Max pain is the strike price at which the largest total value of options expires worthless. It's the strike that maximally hurts option buyers and benefits option writers. On expiry day, NIFTY often gravitates to or near this level because option writers have incentive to defend it.
How is max pain calculated?
For each candidate strike, sum up the intrinsic value of every open call (max(0, strike - candidate)) and every open put (max(0, candidate - strike)) weighted by open interest. The strike that minimises the total is the max pain. Strota recomputes this on every page refresh from live NSE OI.
What does a high PCR mean for NIFTY?
A high put-call ratio (above 1.5) means traders are heavily positioned in puts relative to calls. Counterintuitively this is often bullish — when sentiment is one-sided bearish, the contrarian setup is for a short-cover rally. PCR is most useful at extremes and as a 5-day trend, not as a snapshot.
Are the Greeks calculated by Strota or pulled from a feed?
Calculated by Strota using Black-Scholes with the current discrete dividend yield. Inputs are the live mid-market option price, the spot, time to expiry, and the implied volatility derived from the price. This means the Greeks are internally consistent with the option chain prices.
Why is the highest call OI strike usually the resistance?
The strike with the largest call open interest is where the most call premium has been collected by writers. Writers profit if NIFTY stays below that strike, so they have incentive to defend it. On weekly expiry the strike often acts as a hard ceiling unless a strong news catalyst pushes through.
Does Strota show option chain for stocks too?
Yes — every NSE F&O stock has its own per-stock option chain section on its individual page at /stock/SYMBOL.