AEM just broke down in the Top volume. It wasn't in the Top 30 volume earlier in the morning as captured on the link below but it's now number 7 with the sellers throwing down the shares.
http://stockmarketmindgames.blogspot.com/2019/10/top-30-volume-short-covering.html
It signify that after Hi-P's selling yesterday, it was time for AEM to break down since it's the second liner as compared to Hi-P. AEM was still strong earlier in the morning with price maintaining it's posture to only realized that Hi-P broke down again today and the stock just have to follow. Moreover if you study AEM chart closely, you will see the final blow where the stock gap up and that's where I believed unloading happened there. Anyway, both stocks have ran up too much without factual news, so it's only wise for it to simmer off first.
Ronald K - Market Psychologist - A Stock Market Opportunist