Stocks to watch on the Australian stock exchange at noon on Wednesday:
ASL - AUSDRILL - up 3.5 cents, or 6.93 per cent, at 47 cents
Mining services business Ausdrill is slicing $28 million off its revenue forecast after a customer decided to postpone operations in Africa.
CAB - CABCHARGE - up 9.00 cents, or 1.89 per cent, at $4.84
Cabcharge director Rod Gilmour has quit the taxi payments company's board on the eve of its annual meeting for shareholders.
CKF - Collins Food - up 5.00 cents, or 2.23 per cent, at $2.29
Weaker than expected revenue from Sizzler restaurants has contributed to a $30 million half year loss for its parent company.
GWA - GWA GROUP - up 11 cents, or 4.07 per cent, at $2.81
Household and commercial fixtures and fittings supplier GWA Group is selling Dux Hot Water to a Japanese firm for $46 million.
MGX - MOUNT GIBSON IRON - just out of a trading halt, last traded at 41 cents
Mount Gibson Iron has placed its shares in a trading halt amid ongoing problems at its Koolan Island mine.
MPL - MEDIBANK PRIVATE - down 1.00 cents, or 0.47 per cent, at $2.13
Health Insurer Medibank Private loses ground on its second day of trading, but remains above its retail investor list price.
REX - REGIONAL EXPRESS - steady, at $1.02
Regional airline Rex believes it is well placed to take advantage of any upturn in the economy.
STO - SANTOS - up 13 cents, or 1.10 per cent, at $11.96
Santos has given a start-up date for its $18.5 billion Gladstone liquefied natural gas project of the second half of calendar 2015.
TAH - TABCORP - up 2.50 cents, or 0.60 per cent, at $4.195
Gaming firm Tabcorp says Ellerston Capital, an investment vehicle set up by the Packer family, is no longer a substantial shareholder in Tabcorp.