Gold sub-index down 0.8% Whitehaven Coal marks sixth straight...

• Gold sub-index down 0.8%
• Whitehaven Coal marks sixth straight session of loss
• Tech stock rise 1.3%

(Updates to close)

Australian shares closed unchanged on Tuesday as gains in tech stocks were countered by declines among gold and energy sectors due to a fall in commodity prices.

The S&P/ASX 200 index (xjo) ended up 0.03% at 7,443.4.

The gold sub-index .AXGD was down 0.8%, tracking lower gold prices after an uptick in U.S. dollar and bond yields.

Regis Resources (RRL) led losses on the sub-index after falling as much as 7% after its September-quarter gold production and sales missed analysts' estimates.

The energy sub-index .AXEJ fell 0.5%, with Whitehaven Coal (WHC) and Oil Search leading losses on the index, sliding 4.2% and 1.3%, respectively.

Dalian coking coal and coke futures moved in and out of positive territory after top consumer China said it would tame surging prices of coal amid tight supply in the region.

Besides, concerns loomed that the approaching La Niña pattern that usually delivers harsh winters could further worsen Asia's energy crisis, said Hina Chowdhary, Director of Research, Kalkine Group.

Tech stocks .AXIJ rose 1.3% with gains led by Codan (CDA) and Megaport (MP1) jumping 3.7% and 3.9%, respectively while buy-now-pay-later heavyweight Afterpay (APT) was up 3.3%.

"Investors are expected to assess how tech firms are mitigating labour shortages, supply bottlenecks and inflationary pressures to sustain growth," she added.

Tech stocks took cues from Wall Street, where Dow Industrials and S&P 500 closed at record highs overnight.

In New Zealand, the benchmark S&P/NZX 50 index (nz50) fell 0.1% to 13,075.41, with consumer and healthcare stocks leading losses on the index.