RIO – RIO TINTO – up $2.44, or 3.22 per cent, at $78.25

The price of iron ore continued to climb through December and into the New Year, providing strong support for materials stocks and the major iron ore miners.

WPL – WOODSIDE PETROLEUM – up $1.49 cents, or 4.5 per cent, at $34.57

Oil prices have likewise soared, pushing to two-and-a-half-year highs due to ongoing geopolitical unrest and uncertainty across major production regions, while strong economic data continued to come out of the US and Germany.

CWN – CROWN RESORTS – down 6.0 cents, or 0.46 per cent, at $12.96

Crown Resorts has officially agreed to the $150 million sale of its 62 per cent stake in its joint venture, the online bookmaker CrownBet.

YOW – YOWIE GROUP – down 4.5 cents, or 21.43 per cent, at 16.5 cents

Australian confectionary maker Yowie slashed its full-year sales guidance and replaced its chief executive amid the turmoil of revising net sales to grow by 17 per cent, rather than the previously forecast 55 per cent.

HVN – HARVEY NORMAN – up 15 cents, or 3.6 per cent, at $4.32

With the long-touted arrival of Amazon in December, retail investors will be watching closely to know how the major Aussie retailers have fared during the critical Christmas sales period.

THC – THE HYDROPONICS COMPANY – up 32.5 cents, or 47.79 per cent, at $1.005

AC8 – AUSCANN – up 79 cents, or 98.8 per cent, at $1.59

Medicinal cannabis stocks soared this week after producers and distributers of cannabis based medical products were given approval from the Australian government to export from February.