TD Direct Investing isn't the cheapest. It's the most equipped. 6 institutional-grade research providers, 4 distinct platforms for 4 different trader types, and the deepest US-dollar-registered-account integration of any Big-Six broker. You pay $9.99 a trade for an analyst stack that quants used to lock behind $50K/yr Bloomberg terminals.
All clients
Full research, screeners, level-2 quotes, watchlists
Mobile-first
Quick trades, account view, integrated with TD banking
Active traders
Multi-window, hotkeys, options chains, real-time
Beginners
Curated 50 ETFs, $0 commission, simplified UX
The $9.99 trade is the entry fee for a research stack worth $50K/year if priced individually. If you trade fewer than 30 times a year and you actually use the research, TD is mathematically the best Big-Six. If you don't use the research, you're overpaying — go to Wealthsimple.