Twitter vows to boost user ranks and revenue

Twitter said Thursday it wants to swell its ranks of users, offer more features, and double revenue in the next two years.

Twitter chief Jack Dorsey outlined the goals in a filing with US financial markets regulators at the Securities and Exchange Commission, causing shares to climb nearly 10 percent.

Twitter aims to reach a milestone of 315 million “monetizable” users in 2023, compared with the 192 million it had at the end of last year, according to the filing.