Arm's stock market launch is expected to bring back to life a lackluster IPO market, which has over the last year seen several high-profile startups postpone their listing plans due to market volatility. Arm said that more than 50% of its royalty revenue for the most recent fiscal year came from smartphones and consumer electronics. The company, whose chip technology powers most smartphones including iPhones, did not reveal the number of shares it is planning to sell and the valuation it will seek. Arm makes money from upfront licensing fees for technology and then a royalty paid on each chip sold by Arm's customers. Arm's chip designs dominate the smartphone industry, but they are also used in laptops made by Apple (AAPL.O) and some Windows machines.

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