Box spread is a trading strategy in which one simultaneously buys and sells options having the same underlying asset and time to expiration. but different exercise prices. This study examined the efficiency of European style S&P CNX Nifty Index options of National Stock Exchange. (NSE) India by making use of high-frequency data on put and call options written on Nifty (Time-stamped tr... https://parisnaturalfoodes.shop/product-category/green-tea-extract/