Stocks to watch on the Australian stock exchange on Friday:

ORL – OROTONGROUP – up 45 cents, or 12.3 pct, at $4.10

Shares in luxury accessory and clothing retailer OrotonGroup have surged after an impressive full year earnings result.

ARI – ARRIUM – down 16.498 cents, or 29 pct, at 40 cents

The iron ore and steel maker’s shares plunged more than 25 per cent after the company wrapped up its $754 million capital raising.

WES – WESFARMERS – down 24 cents, or 0.6 pct, at $42.86

Supermarket chain Coles has won approval from the competition watchdog to buy three Progressive IGA stores in Western Australia.

ACR – ACRUX – down 44 cents, or 26 pct, to $1.25

The biotech placed its shares in a trading halt after the stock plunged by more than 20 per cent amid concerns about a review of its testosterone therapy by US health authorities.

SPL – STARPHARMA – in a trading halt at 71 cents

Shares in the biotech have gone into a trading halt ahead of an announcement about a capital raising.

ASX – ASX – up nine cents, or 0.25 pct, to $35.94

The securities exchange operator plans to buy a 49 per cent stake in electronic markets operator Yieldbroker for $65 million.

MAH – MACMAHON HOLDINGS – steady at 11 cents

The mining services provider and two of its Mongolian operating subsidiaries have begun a three-week standstill agreement with the operator of the Tavan Tolgoi coal mine amid ongoing talks about payment delays.

WOR – WORLEY PARSONS – down four cents, or 0.25 pct, at $16.14

The engineering giant has signed five year contract extensions with two key clients and expects to reap more than $150 million as a result.