Robinhood is no longer looking to become a federally insured bank. The stock-trading start-up announced Wednesday that it was pulling its bank charter application with the Office of the Comptroller of the Currency, which was submitted earlier this year. A Robinhood spokesperson said the withdrawal was voluntary. But the move highlights the struggles a tech company can face when trying to upend the financial system. “Robinhood will continue to focus on increasing participation in the financial system and challenging the industry to better serve everyone,” the spokesperson told CNBC. “We appreciate the efforts and ... (full story)