Stocks to watch on the Australian stock exchange at noon on Wednesday:
CSL - CSL - up 48.5 cents, or 0.67 per cent, at $72.985
Global biotech company CSL has announced a share buyback of up to $950 million.
DSH - DICK SMITH HOLDINGS - up 3.5 cents, or 1.66 per cent, at $2.145
Dick Smith wants 450 stores across the country by 2017, opening 20 news shops each year.
RIO - RIO TINTO - up 55 cents, or 0.90 per cent, at $61.29
Rio Tinto has shipped a record 78 million tonnes of iron ore during the September quarter.
TRS - THE REJECT SHOP - up 30 cents, or 3.49 per cent, at $8.89
The Reject Shop holds its annual general meeting on Wednesday.
WHC - WHITEHAVEN COAL - down 5.00 cents, or 3.24 per cent, at $1.495
Whitehaven Coal says it is on track to start transporting coal out of its new Maules Creek mine in less than six months.