RE: Operations update11 Jan 2021 10:33
I think the drop is because people were waiting for this mornings release in case there were any new announcements they'd regret missing out on. Anyone who bought between 1 and 10 months ago is still in good profit, so they are selling and putting their money elsewhere. In other words the speculators are pulling out.
Still a solid company with solid dividends worth holding onto if you a long term investor.