15 Minutes.
As expected
Considering the rise from 504.91 to 518.22
Hence
If we consider the fall 518.22 to 508.5 SPY needs to be more than 514.5 levels which is 61.8% retracement for the fall. And
For the day consider the rise from 510.51 to 517.38.
Moving averages have converged. 100 is around 514 levels.
For the holding around 514.5 I expect 518-519 as a target.