Realtime Chart Basics: FTSE100 [4HR]: The key UK index broke its rising trendline support and sell-off ensued. Its has broken its 38.2% Fib [11/24/2011 Lo-3/13/2012 Hi] @ 5,651, and is now approaching a very CRITICAL rising trendline support. A break could be serious, I mean serious. This is an index I would be stalking next week. #index