TradeStation - Whether you trade stocks, ETFs, options or futures, TradeStation’s award-winning tools and...

Sharesight - Online stock portfolio tracker that automatically tracks prices, dividends, performance and tax.

OptionsHouse - OptionsHouse is an online stock trading platform with an easy-to-use interface.

Stockfolio - Stockfolio is the best stock and cryptocurrency investment app for mac that allows you to research and track interesting stocks. It is extremely easy to set up and the best way to manage and follow your investment portfolio.

Google Finance - Google Finance is a website focusing on business news and financial information hosted by Google.

Yahoo! Finance - At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life.