Oprah Winfrey Drops 40 Pounds And Adds $100 Million To Weight Watchers StockActivity-tracking device maker Fitbit -- in which I have no financial interest -- has suffered a 70% plunge in its stock price. In 2000, I invested in a startup of which current Fitbit CEO James Park was chief technology officer. But that was not enough to keep me from wanting to invest in Fitbit prior to its 2015 initial public offering. Fitbit's outlook is pure hockey stick -- bad for the first half of the year but great in the second half. What's more Fitbit expects negative free cash flow of $50 million to $100 million in 2017.

Source: Forbes January 31, 2017 15:32 UTC