Day traders' after-market lounge September 11

Thanks afternoon crew.

End-of-day summary:

Aussie shares fell as this year's fierce bank rally took a breather and US equity futures reacted negatively to a shift on betting markets towards a Harris presidency following this morning's debate.

The ASX 200 finished 24 points or 0.3% lower after a fleeting opening rally faded. A 33-month low in crude helped pull the energy sector down 1.41%. The financial sector shed 1.46% after several US lenders warned of growing headwinds for the year ahead.

Lithium miners provided much of the day's upside following reports that Chinese giant CATL has suspended mining at two mines responsible for almost a tenth of Chinese production. There were double-digit gains today for Mineral Resources, Pilbara Minerals, Liontown Resources and Arcadium Lithium.

US equity futures fell steadily as betting markets gave Kamala Harris a narrow lead following today's presidential debate with Donald Trump. A CNN poll of watchers awarded the debate to Harris by around 2:1. S&P 500 futures were down 0.51% at the Australian market close.