The Indian Volatility Index (VIX), a gauge for market’s short term expectation of volatility, jumped about 14.68 per cent to 20.54. Nifty October 2018 future last price stood at 10,258.55 at a premium of 23.90 points over spot closing of 10,234.65. Nifty November 2018 future last price stood at 10,309.10 at a premium of 74.45 point over the spot closing of 10,234.65. The Nifty Put-Call Ratio (PCR) Open Interest-wise stood at 0.90 for the October month contract. Among Nifty Calls, 10,500 strike price from the October month expiry was the most active Call. Among Nifty Puts, 10,000 strike price from the October month expiry was the most active Put. For the October series, the maximum OI outstanding for Puts was at 10,000 strike price, and that for Calls, it was at 10,500 strike price.