Perceivable - Text and background contrast are excellent and creates an easy-to-read user interface for the website.
Operable - TradingView demonstrates operability by adding key features such as hovering over the stream changes the colour of the play button to blue.
Understandable - Easy-to-understand text accompanies all articles/blog posts in TradingView which allows the reader to gain a quick insight into the article before going further.
Robust - Lots of features with graphs and charts which allow readers to hover over charts to get exact information when it comes to stock prices and dates. Keyboard shortcuts are also used by pressing tab and arrow keys to navigate through the site. Disabled users can navigate the web without the need of a mouse!