Tweet announcing the initial public offering
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Twitter plans stock market listing

Twitter has announced it has filed paperwork with US regulators ahead of a planned stock market flotation.

"We've confidentially submitted an S-1 to the SEC for a planned IPO [initial public offering]," the company tweeted on its official feed.

The stock offering is the most hotly anticipated since Facebook listed its shares last year.

The BBC's Samira Hussain reports.

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