In the world of finance, it is important to understand the various symbols used to identify listed securities. These symbols can consist of a single letter, two letters, or a combination of up to eight characters. For example, BMO.PR.U. Each symbol has a unique meaning such as denoting a specific class of shares, debentures, or equity dividends. It is crucial to be familiar with these symbols to accurately analyze and track investments. Some commonly used symbols include A-B for class of shares, B for debentures, and H for NEX market. Other examples include UN for units and WT for warrants. Knowing these symbols can greatly enhance one's understanding of the financial market.