[US online celebrity brokers began to "clean up" the credit card market: 3% of consumer cash returned to compete with Apple's business] After the opening of the US stock market on Wednesday, the stock price of Robin Hood, a well-known Internet broker, once rose nearly 5%. On the news front, Robinhood, who once led the wave of zero commission trading in the US stock market, has officially entered the US credit card market and launched a credit card that is enough to make Apple Card users envious.