The Australian share market has had a negative start to the trading week, after an $85 billion plunge on Friday saw last week's gains wiped out, but Afterpay shares have surged.• Energy is the worst performing sector as oil prices slump
By 10:50am , the benchmark ASX 200 index was down 0.9 per cent to 5,201 points, while the All Ordinaries index had lost 0.9 per cent, or 48 points, to 5,276. A sharp fall in oil prices spurred the selling, with West Texas intermediate crude down more than 7 per cent to $US18.34 a barrel.Westpac reporting a 62 per cent slump in first half profit and deferring its interim dividendHowever, smaller banks and other financial firms dragged, including Bank of Queensland , Macquarie Group and AMP .
Bull trap
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