There used to be a poster on here called robbbbb he was a T/A guru the 3 emas he used we’re 13 - 41 and 195 - I still use 195 but refer to it as the 200 its only a slight tweak I have changed the the 13 to 15 once agin only a slight tweak these are the 2 I show on my daily charts - for intraday trading the index I use 5 minute charts with 9 and 21 emas.
