What's better than IBKR? What percentage of Americans have $500,000 in retirement? What brokerage do billionaires use? What are the top 3 brokerages? Is investing $100 in stocks worth it? Is IBKR the same as Interactive Brokers? Is IBKR good for long-term investing? Is IBKR beginner friendly? Is IBKR a legit broker? Is $100 enough to start trading? How much does IBKR charge for withdrawal? Does IBKR have hidden fees? Do millionaires use brokerage accounts?