The Australian share market has moved higher despite it being a mixed session for the big miners.

The benchmark S&P/ASX200 index was up 24.0 points, or 0.36 per cent, to 6,715.2 points at 1200 AEST on Tuesday, while the broader All Ordinaries was up 22.5 points, or 0.33 per cent, to 6,803.7 points.

Consumer discretionary, tech and industrial shares were leading gains at midday.

Kogan jumped 4.6 per cent to $5.44 after the online retailer said it expected second-half profit growth to exceed 12 per cent.

In the same sector, Harvey Norman was up 2.3 per cent to $4.42, Autosports was up 4.4 per cent to $1.30 and Webjet was up 2.7 per cent to $13.35.

The heavyweight materials sector was the only segment of the ASX in negative territory, dipping 0.13 per cent after a retreat in iron ore prices, while telecommunication shares were flat.

Mining giant BHP was up 0.3 per cent to $41.46 but Rio Tinto was down 0.5 per cent to $102.68 and Fortescue Metals was down 0.5 per cent to $8.855.

Telstra was flat at $3.80 while TPG dipped 0.4 per cent to $6.645 and Domain was down 6.9 per cent to $2.85.

The big four banks were higher, with ANZ up 0.3 per cent to $27.45, Commonwealth up 0.1 per cent to $81.91, NAB up 0.8 per cent to $27.785 and Westpac up 0.3 per cent at $27.93.

The Aussie dollar is buying 70.29 US cents, from 70.34 US cents on Monday.