Australia's stock market fell slightly in line with a similar move in the US market as Nvidia lost ground before it reports early Thursday Australian time.
Results volatility dominated with some big moves in reporting companies.
The S&P/ASX 200 index closed down 0.2 per cent at 8071.2 points.
It hit a near four-week high of 8107.3 as BHP, Woodside and Coles rose after reporting, and iron ore miners and energy producers rose on high commodity prices.
BHP closed up 1.3 per cent after rising 3 per cent, Woodside closed up 3.9 per cent after rising 5.5 per cent and Coles closed up 1.7 after rising 3 per cent intraday.
The index dipped to 8062.4 as banks and the financials sector fell along with the tech, industrials, communications, consumer discretionary and health care sectors.
Major banks closed down 0.2-1 per cent led by NAB. QBE lost 1.5 per cent.
Nanosonics soared 23 per cent and Worley rose 2.8 per cent after reporting, but Johns Lyng dived 27 per cent, Lovisa dropped 13 per cent and Zip fell 7.9 per cent.