The graphs are a little misleading there. If we continue them to today (rather than May 17), we get this,
View attachment 1097998
Same mid-January 2018 downturn like everyone else with the usual 30 or so percent drops. They are recovering better being producers more recently however which is good news for everyone.
For fun, if we add AVZ to this time period....
View attachment 1098001
Down from 4000% to 2000% is a tough day at the office