Stocks of interest on the Australian Stock Exchange today:

AGO - ATLAS IRON LTD - in trading halt, last traded at $2.21

Atlas Iron has narrowed its first half loss after a sharp rise revenue and continues to develop its second mine.

BBG - BILLABONG INTERNATIONAL LTD - up 24 cents at $10.90

Billabong International is being sued for $US153 million ($A168.28 million) by its former Indonesian licensee over the surfwear maker's termination of a licence to distribute products.

CIL - CENTREBET INTERNATIONAL LTD - up 17 cents at $1.80

Centrebet International says it is in talks with parties interested in taking over the online gaming firm.

GWT - GWA INTERNATIONAL LTD - up nine cents at $3.32

Building products supplier GWA International says it will acquire Brivis Climate Systems from Carrier Air Conditioning Pty Ltd for $50 million.

NMG - NOBLE MINERAL RESOURCES LTD - up six cents at 35 cents

Noble Mineral Resources's share price has risen sharply after an upgrade to the estimated size of the resource at its Bibiani gold project in Ghana raised expectations that mining could recommence at the site.

OZL - OZ MINERALS LTD - down two cents at $1.15

AZS - AZURE MINERALS LTD - closed on Tuesday at 4.4 cents

Copper and gold miner OZ Minerals has made a foray into Latin America through a joint venture in Mexico with junior precious and base metals explorer, Azure Minerals.

TLS - TELSTRA CORPORATION LTD - steady at $2.91

The coalition will continue to oppose legislation that paves the way for Telstra to be broken up.