Yes , I launch pro realtime through IG. If you search through posts regarding pre-market data on pro-realtime ( via IG ) , they officially confirmed that pre-market data cannot be shown in current version. If you go read about the features of V.11, they've updated that. In terms of trading US Stocks , brokers like Interactive Brokers are much better options ( very low commissions , can link to DAS trader etc ). But each platform has pros and cons. One thing I like about PRT is that you can trade on the chart etc. Then again level 2 data cannot be shown on PRT is disadvantage. Overall , IG is not suitable for day trading US Stocks.