The S&P/ASX 200 Index is trading a quarter of a percent higher at 6154.5 points near 10.15am.
The financials sector is up 2.25 per cent as the CBA result pushes shares in the banks higher.
CBA shares have risen 1.5 per cent to $75.84, while Westpac shares have jumped 3.7 per cent to $18.43.
NAB and ANZ shares are 3.4 per cent higher at $18.48 and $19.11 respectively.
Gold miners have dropped in early trade after spot prices for the precious metal fell sharply overnight.
An ounce of gold is currently worth about $US1920 on spot markets after dropping below $US2000 yesterday.
Among the worst hit is Bellevue Gold—its shares are down 7.2 per cent—and Evolution Mining, which has lost 6.7 per cent after telling investors that operations at its Red Lake mine had been suspended due to a bushfire.
Air New Zealand shares have lost 5 per cent after lockdowns were reinstated in response to the country’s first new cases in a number of months.
Result releases have seen Magellan Financial Group shares gain 2.6 per cent; Seek shares tumble 12.8 per cent; Downer EDI add 1.4 per cent; and Transurban slide 1.1 per cent.