At midday AEDT on Thursday, the benchmark S&P/ASX200 index was down 14.6 points, or 0.19 per cent, to 7,592.4, while the broader All Ordinaries had fallen 13.5 points, or 0.17 per cent, to 7,846.5.
On Wall Street, Nividia smashed expectations by reporting fourth-quarter revenue of $US22.1 billion, up 22 per cent from three months ago and 265 per cent from a year ago.
"This is just an insane result, and the guidance is strong," said Saxo head of equity strategy Peter Garnry. "I have never seen anything like this in my career."
Closer to home, the Australian Bureau of Statistics reported the strongest growth in wages in November since May 2013, aside from a spike early in the COVID-19 pandemic. Adult wages increased by 4.5 per cent, or $81 a week, to $1,888, the ABS said.
The ASX's 11 sectors were mixed at midday, with six up, three down and telecommunications and tech basically flat.
Property was the biggest mover, falling 1.0 per cent as Charter Hall dropped 2.1 per cent and Stockland dipped 1.7 per cent.
In the heavyweight mining sector, Fortescue had gained 1.7 per cent to $27.72 as Andrew "Twiggy" Forrest's company reported soaring profits on near-record iron ore shipments and higher prices for his Pilbara ore.
Pilbara was down 1.2 per cent to $3.615 after Australia's largest lithium company reported that its profit slid 82 per cent to $220 million on lower prices for the battery metal.
Elsewhere in the sector, BHP was up 0.1 per cent, Rio Tinto had dropped 1.2 per cent after announcing its earnings Wednesday evening, and Mineral Resources had advanced 3.6 per cent.
Medibank Private was down 5.0 per cent to $3.665 after posting a 16 per cent jump in first-half profit to $262.5 million, as higher sales offset continuing costs from its 2022 cyber attack.
Qantas was down 2.1 per cent to $5.475 after the airline said lower fares contributed to its half-year underlying profit dropping 13 per cent to $1.25 billion.
The Big Four banks were all lower, with ANZ and NAB dropping the most, 0.5 per cent apiece.
The Australian dollar was buying 65.53 US cents, from 65.69 US cents at Wednesday's close.