I'm looking at trend line started from 2009, the current drop would intersect it around 20,000 to 20,600, that area (depends on how you draw the line).
If we go below that then its back to 18K somewhere.

https://imgur.com/a/fxKJVTu

Also, we are in the middle of a death cross on the DOW. Thats when the 50MA crosses below the 200MA on the daily chart of the DOW.