"All ships sink with the tide".
Its the Global ETF .that ASX follows . feb 2018 was $44 ...now $28. (look at the chart !)
this fund has 20 top producers in world. they drop ....we drop simple as that..
Announcements along the way are micro managed by Brokers.....they decide.
when not sure they take SP down ...I've watched this for 30 years. thru dot.com 1999 /2000 & 3 major bear markets.