FORTUNE -- It's been exactly three months since Apple (AAPL) launched the iPhone 5, and the effect on the data released Friday by Kantar Worldpanel ComTech couldn't be clearer -- at least in the U.S.
In the 12 weeks ending Nov. 25 -- including...
In 9 weeks, iPhone share of US smartphone sales grew 17.5%
Apple hit highest-ever 53.3% share by Nov. 25, up from 38.8% in 2011, Kantar reports
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