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nature does HFT


Mark Buchanan, nature, Physics in finance:  Trading at the speed of light, here. Just repeaters in Balloons? What happened to the Dyna-Pie drone traders taking a vig over the ocean?

Next up may be hollow-core fibre cables, through which light would travel in a tiny air gap at light speed. Trading firms speculate about a fleet of balloons or uncrewed solar-powered drones carrying signal repeaters to support a network of links across the oceans. In a decade or so, firms may even communicate using neutrinos, which travel at the speed of light and can go through obstacles, including Earth. It all spells big profits for high-tech trading firms, which now account for around 50% of equity trading in the United States and in Europe.


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