Discover the world of brokerage firms and learn how to choose the best trading service for your needs. From full-service giants like Merrill Lynch to accessible options like TD Ameritrade and Fidelity, we break down the essentials you need to know before investing. #BrokerageFirms #Investing #TradingServices #StockMarket #FinancialLiteracy #MerrillLynch #TDameritrade #Fidelity #InvestmentAdvice #CreditRating