UPDATE 2-Crypto flagship Coinbase jumps 11% after stormy Nasdaq debut Reuters 4 hrs ago Popular Searches * Bitcoin slips from record highs * "Are these levels normal? Probably not." - analyst (Adds comments, graphic, details on bitcoin) By Devik Jain April 15 (Reuters) - Coinbase Global Inc shares jumped 11% in early trading on Thursday, a day after the cryptocurrency exchange went public in a high-profile debut on the Nasdaq that briefly valued it at more than $100 billion. The debut, done through a direct listing where no shares are sold ahead of the opening, marked another milestone for bitcoin and other digital assets and came amid a surge in the value of cryptocurrencies that has lured a clutch of mainstream, top-tier firms.