How investors should react to news of China shutting down all crypto activity Jon Najarian joins the Halftime Report to discuss China’s new crackdown on digital currencies. Bitcoin stock plunged after this morning’s announcement. For access to live and exclusive video from CNBC subscribe to CNBC PRO: Bitcoin and ether tumbled Friday, with traders rattled by tough talk out of China. The price of bitcoin fell about 5% to $42,496.12, according to Coin Metrics data. Ether, the second-largest digital currency, dropped 7% to $2,921.53. It comes after the People’s Bank of China said in a Q&A that all crypto-related activities...