Several scientists said the most remarkable thing about the 2014 record was that it had occurred in a year that did not feature a strong El Ni?o, a large-scale weather pattern in which the Pacific Ocean pumps an enormous amount of heat into the atmosphere.
Average age: 37
Despite the criticism, Mayer defended her decision to Fortune in April and said that the move was "wrongly perceived as an industry narrative." Mayer said she needed employees to work in the office to encourage collaboration and innovation from workers. So far it looks like her controversial move may be helping the business: Yahoo's stock is up more than 100% since Mayer took over in 2012.}
Over the first weekend of 2015 the second-largest bitcoin exchange, Slovenia-based Bitstamp, was victim of a hack to the tune of some million U.S. dollars’ worth of the digital currency. As the tech press were quick to point out, it was a worrisome start to the year for a digital currency that Quartz had already declared “the worst investment of 2014.” And if you look at its performance between Jan 1, 2014 and Jan. 1, 2015, that’s not wrong: bitcoin ended the year at 39% of the value it started with.
Among the gargantuan hedge funds that make up a majority of the industry’s assets under management, dispersion of returns shot up to notable levels. And for every big winner, like William Ackman’s Pershing Square, there was a big loser to counterbalance it, like John Paulson’s Advantage Fund. Investors choose hedge funds for their “non-correlated returns,” meaning a tendency to move opposite from the general market’s direction. They certainly got such returns this year, unfortunately.