Want to know why HE is going downwards today?

Based on the last 12 Existing Home Sales events in United States, we expect a $72.288 movement on HE within 2 hours following the event release at 18 Mar 14:00. We expect HE to trend downwards 2 hours following the event release at 18 Mar 14:00 if the released value is < 6.1M Historical events that allowed us to draw this conclusion

20 Jan 15:00
22 Sep 14:00
22 Jul 14:00
22 Apr 14:00
22 Mar 14:00