Trading was heavy for a Friday with 38.56 million shares worth $193.38m changing hands.
The CEO says he's never seen a market this volatile since founding the firm.
The next near-term support level is at 57.75 US cents.
CDC secures seal of approval from Nvidia for its Australasian datacentres.
Stevenson said the council was happy to stand behind the quality of Northington’s work.
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