CNBC U.S. Contributors

Jon Najarian

Joe Najarian
Co-Founder, Najarian Family Office

Jon "Dr. J" Najarian was linebacker for the Chicago Bears before he turned to another kind of contact sport – trading on the Chicago Board Options Exchange

He became member of the CBOE, NYSE, CME and CBOT and worked as a floor trader for some 25 years. Today, he is a professional investor, money manager, lecturer as well as co-founder of Najarian Family Office and Rebellion Partners.

Jon developed and patented trading applications and algorithms used to identify unusual activity in stock, options and futures. His Heat Seeker™ has sniffed out takeovers in numerous stocks and his data has been requested and provided to law enforcement & securities regulators to find those guilty of insider trading.

Jon and his brother Pete founded TradeMonster and OptionMonster, which were rated "Best for Options Traders" by Barron's four years in a row. He developed the first online brokerage to deploy streaming, desktop-like trading in a web browser.

The brothers are founding members of Investitute.com, a financial education & subscription services company, as well as best-selling authors of both "How We Trade Options" and "The 22 Rules of Investing".

What does Jon Najarian do when he's not investing? Here's a look in our Halftime Report "Trade Off."

Follow Jon on Twitter: @jonnajarian

Disclosures as of 6/15/18:

Long calls: Activision Blizzard, Akamai Technologies, American Airlines, Apple, ArcelorMittal, Autodesk, Caesars Entertainment, Comcast, Cree, Delta Air Lines, Diamond Offshore Drilling, Diamondback Energy, Electronic Arts, Facebook, First Data, First Solar, International Game Technology, JD.com, JetBlue, John Deere, Juniper Networks, Knight-Swift, Marathon Oil, Marvell Technology Group, Masco, MGM Resorts, Microsoft, Net Element, Netflix, Newell Brands, NRG Energy, PayPal, Russell 2000 Index ETF, Snap Inc., Square, Take Two Interactive, Teva Pharmaceutical, TIme Warner, TripAdvisor, Twitter, United States Oil Fund, Visa, VMware, Wells Fargo, Weyland Tech, WPX Energy, Xilinx.

Long stock: U.S. Auto Parts