Stocks to watch on the Australian stock exchange:

ANZ – ANZ BANKING GROUP – down 10 cents, or 0.4 per cent, at $26.56

CBA – COMMONWEALTH BANK – down 88 cents, or 1.3 per cent, at $69.51

NAB – NATIONAL AUSTRALIA BANK – down 24 cents, or 0.9 per cent, at $26.44

WBC – WESTPAC – down 15 cents, or 0.5 per cent, at $27.63

Shares in the big four banks dropped after the ACCC late on Tuesday confirmed ANZ, Deutsche Bank and Citigroup had been charged with criminal cartel offences in relation to a 2015 ANZ capital raising.

BOT – BOTANIX – down 2 cents, or 11.1 per cent, at 16 cents

Botanix Pharmaceuticals, which develops treatments for skin conditions using a synthetic form of a compound found in cannabis, says a clinical trial of the compound on patients with atopic dermatitis has shown the compound to be safe and effective.

MTS – METCASH – down 9 cents, or 3.3 per cent, at $2.67

Metcash will take a $352 million hit in its full-year results following the decision of one of its South Australian supermarket customers not to renew its contract.