Buying and selling hoursTrading calendar & exchange holidaysTrading systemMarket modelsOrder typesVolatility interruptionTick size & liquidity bandPre-trade controlsOrder-to-trade ratio : Trying to find a hairstylist to type approx 4 peoples hair for my marriage ceremony within the 23rd of Dec in Durbanville... Any ideas who i can use. Ilze H.: See https://alexisnoopo.tkzblog.com/36031847/everything-about-hair-salon