The S&P/ASX200 dropped 41.2 points on Wednesday, down 0.45 per cent, to 9,209.4, as the broader All Ordinaries fell 39 points, or 0.41 per cent, to 9,404.7.
Investor confidence wavered as CommBank joined its big four competitors in reporting falling mortgage applications, despite handing down an $11 billion full-year profit.Â
"Investors are taking a bit of a line from those bank results and sort of interpolating it to the broader economy," Moomoo market strategist Michael McCarthy told AAP.
Consumer cyclicals and real estate socks were the worst-performing sectors, falling 0.8 per cent and one per cent respectively.
"Things have been okay, but we're heading for a rough patch, and the pressure we're seeing today is reflecting that," Mr McCarthy said.
Markets were also tentative ahead of key US inflation data due overnight.
The ongoing stalemate in the Middle East was a third factor to weigh on sentiment as oil prices clung to recent gains after fresh attacks on shipping vessels in West Asia.
It wasn't enough to support local oil and gas producers Woodside and Santos, which both traded lower.
Non-energy miners fell 0.2 per cent, as continued strength in the gold price supported local producers, while BHP, Fortescue and South 32 fell.
Spot gold firmed to $US4,389 ($A6,219) an ounce, while copper prices improved and iron ore futures wavered near $US95 a tonne.
The utilities sector was the only strong performer of the 11 segments, as AGL shares charged six per cent higher despite a slight earnings miss.
The result was good enough for bargain hunting traders though, who scooped up AGL stocks after they dropped 25 per cent between February and July.
Elsewhere in earnings, Suncorp shares rallied 3.3 per cent to $19.18 despite a drop in full-year net profit, as it flagged strong premiums growth and a further share buyback of up to $250 million.
Financials weighed heavily, the sector down 0.6 per cent as the big four banks and Macquarie lost ground.
Just six sessions from a record-high for the ASX200, Wednesday's session showed how demanding the market had become, etoro lead analyst Josh Gilbert said.
"CBA is a good example of the tension in this market," he said.
"The result wasn't bad, but the market expected more, particularly given that CBA still commands a hefty valuation premium over the rest of the banking sector."
Telstra, Origin, Transurban, IAG and bourse operator ASX Ltd will hand down results on Thursday.
The Australian dollar is buying 70.61 US cents, up slightly from 70.52 US cents on Tuesday at 5pm.
ON THE ASX:
* The S&P/ASX200 lost 41.2 points, or 0.45 per cent, to 9,209.4
* The broader All Ordinaries fell 39 points, or 0.41 per cent, to 9,404.7
One Australian dollar trades for:
* 70.61 US cents, from 70.52 US cents at 5pm AEST on Tuesday
* 112.52 Japanese yen, from 112.28 Japanese yen
* 61.20 euro cents, from 61.13 euro cents
* 52.26 British pence, from 52.22 pence
* 120.35 NZ cents, from 120.03 NZ cents
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