DIVISLAB volatility
ATM IV
35.6%
HV 20d
30.3%
HV 30d
27.0%
IV percentile
99
IV rank
89
Implied vs historical volatility
ATM IVHV 20d
Put-call ratio (open interest)
As of 02 Nov 2026. ATM IV = mean of call and put IV at the strike nearest the parity forward, nearest expiry with ≥ 7 days left; HV = annualised close-to-close st.dev. (split/bonus ex-dates excluded); IVP = % of sessions in the window with lower IV; IVR = position between the window low and high. Source: NSE F&O bhavcopy + equity/index closes.