The Green Line is 10 EMA (sema) and Red Line is 20 EMA (mema), when sema above mema, overall trend is up and when sema below mema, overall trend is down. The gap of sema and mema times 2,3,4,5 times to project the band of support and resistance. It is like Bollinger Band that expand and shrink to tell the market is trending or moving sideway with direction. The...