The Aussie share market tumbled more than 1% on Wednesday, marking its worst day in five weeks, as investors reacted to ongoing uncertainty over US-Iran peace talks. The financial sector led the decline, with major banks falling between 2-2.5%, while Cochlear shares plunged 40% after a significant profit downgrade. Treasury Wine Estates was a rare bright spot, jumping 16.5% on a major business restructure and positive trading update.

Steve Daghlian and Laura Besarati are Market Analysts at CommSec. Each episode, they break down the day's market movements and explain what the numbers really mean.

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