By Pritam Biswas (Reuters) -Coinbase Global beat analysts' estimates for third-quarter profit on Thursday, as heightened volatility in digital assets boosted trading volumes at the cryptocurrency exchange, sending its shares up more than 3% after the bell. Digital assets rallied in July as crypto-friendly policies by U.S. President Donald Trump attracted institutional investor interest, catapulting bitcoin, the world's largest cryptocurrency, to new peaks. However, weak economic data in the following mo ...