A rise in oil and iron ore prices may not be enough to lift the sharemarket today.

Markets Live: ASX see-saws

Shares fall then bounce only to drop again as selling in miners and banks intensifies, while bond proxies enjoy some relief and CSL shines.

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Trump smashes defence shares

Investors sold defence firm shares in reaction to Donald Trump criticising 'out of control' costs of joint strike fighter jets Lockheed Mart...