The post Horizontal Triangle thrust up impulse wave I've been tracking may have completed today 9/13/17 with an Elliott wave Ending Diagonal Triangle. This structure occurs in fifth waves and are termination waves to the larger degree trend. This type of wave happens after a market has gone too far to fast.
A move below SPX 2492.10 could be a very important bearish signal. If the SPX has topped on 9/13/17-the thirty four calendar day mini crash phenomenon I've discovered targets 10/16/17 as the mini crash bottom. Price target zone is 2120 to 2160.