The resistance line that has been in place middle of last year was retested again at the beginning of April, unsuccessfully. 1HR Fibonacci shows downward trend, SPX500 hit 0.7 level and started falling. for almost all time frames is above 50%.
Test of structure at 1998.6 and if it breaks it (highly likely) it should fall down to 1821.4, another structure.
Also, there is a 'head and shoulders' pattern in 1HR chart with right shoulder indicating crash.