Visa, Nasdaq, Capital One, Citi, others invest $30M in Chain, a startup developing ways to trade assets like stocks via blockchain technology Bradley Hope / Wall Street Journal : Wall Street Journal 2015-09-12 Bradley Hope Capital One, Citi, Nasdaq, Visa, Wall Street Journal, Bradley Hope, blockchain Related Coverage View article Forbes View article Wired View article CoinDesk View article PR Newswire View article Bank Think