Robinhood Markets Inc. is joining the growing push to trade US equities on the blockchain, making tokenized US securities available to 150,000 customers in 30 countries, 24 hours a day, five days a week. The company will own the shares backing the tokens, a spokesperson said, and while token holders will have most of the benefits of the underlying security, including dividends, voting rights won’t be initially supported. Bloomberg News previously reported that the product was in development.