Get set for the "biggest stock market flotation in history", say Jillian Ambrose and Patrick Collinson in The Guardian. Saudi Arabia has given the go-ahead to the long-delayed initial public offering (IPO) of the state-owned oil company Saudi Aramco. Only of 1%-3% of the total company will be released onto the Saudi equity market. But the sheer size of the group, estimated to be at least 50% bigger than the next-largest listed firm in the world, means that the IPO is likely to raise at least $40bn-$45bn, eclipsing the record $25bn raised by China's tech giant Alibaba in 2015.