While trading the open I can choose to turn pre-market data on or off. Turning this data on or off affects certain indicators. Example the initial direction of the 9ema at 9:30am will be dramatically affected. My question is... do you think most equity day traders are trading with pre-market data on or off? Or another way of asking it may be... do you trade with pre-market data on or off and why? The reason I ask is I would prefer my indicators to be in line with how the majority of traders see it on their charts. Any relevant and thoughtful answers to these questions would be greatly appreciated. Thanks so much for the help!