for Nifty50 in the month of January, at the strike price of 7000, the volume of put options was 28,273 for a day and on the same day with same strike price and same expiry date, the volume of call options was 88,220. (adigitalblogger.com)
David Cameron said he «unreservedly» condemns the Tube strike affecting London's Underground network on Wednesday and Thursday, and he called on the Labour leader to do the same (bbc.com)
One simultaneously opens a long and a short option position on an asset with different expiration dates, but the same strike price. (skoptionstrading.com)