The cloud computing giants are vying to protect fat profits

executives ring the closing bell at the Nasdaq stock exchange in New York, it is usually because their firm has just gone public. When Adam Selipsky did so on June 27th, he was celebrating a tie-up with the bourse. He is the boss of ()the tech giant’s arm, and the deal is part of the exchange’s shift of its stockmarkets to s cloud. Tailored features include data transfer with minimal delay, which should please high-frequency traders. Nasdaq’s customers will be able to use ’s advanced analytics tools, such as machine learning (), through the stock exchange’s platform.The deal, first announced last November, came weeks after Alphabet, Google’s parent company, unveiled a similar tie-up between , its cloud offering, and , one of the world’s biggest derivatives exchanges. A day before that deal was struck Microsoft Azure announced the rollout of its financial-services cloud. Clients include Morgan Stanley and , two banks. Not-so-big tech is wading in, too: and Oracle also offer financial clouds.