Big Ideas

Big Ideas
Currency traders at Worldwide Currencies Ltd in London's Canary Wharf stand at their desks to cold call during 'power hour'. So-called 'robo-trading' is reducing demand for such practices. Picture: PA

How machine learning is transforming the stock exchange

The public perception of stock exchanges remains little changed since the Big Bang deregulated the financial markets. Anytime a trading floor is depicted in a film or TV series, you can expect to see a group of men frantically waving their arms and shouting at a bank of screens showing the ups and downs of share prices.

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