Fortescue tanked 7% after the world's fourth-largest iron ore producer reported weaker-than-expected first-half profit and said it was reconsidering timeframes for some of its green energy projects. That dragged the broader mining index more than 2% lower, marking its fourth straight day in the red. BHP Group also fell 2.1%. Banks slipped more than 1% to their lowest in six weeks. ANZ Group shed 3% on reporting a rise in mortgage restructuring, which pushed asset impairments to their highest levels since 2021 in the first quarter. The remaining three of the "Big Four" fell between 0.8% and 3%. Conglomerate Wesfarmers advanced 2.6%, while telecom giant Telstra gained 4.7% on reporting upbeat first-half profits. Australian shares marginally extend losses after RBA cuts rate as expected In New Zealand, the benchmark S&P/NZX 50 index slipped 0.7%. Air New Zealand rose as much as 4% after the flag carrier announced a share buyback of NZ$100 million ($57.04 million).