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We ranked 12 all-star tech CEOs on how much they made (or lost) for shareholders this year

Matt WeinbergerDec 31, 2015, 19:30 IST

Amazon Founder and CEO Jeff BezosMike Segar/Reuters

Behind every great company, there's a great leader.

But not every great leader did so great this year.

Here's a look at how 12 all-star CEOs at publicly traded tech companies, from Alphabet to Yahoo, performed in 2015.

We calculated by comparing the company's stock-price gain from January 2, 2015, the first day of trading, to close of markets on December 30.

A higher number means a higher return for investors.

Keep scrolling for the countdown.