銘柄情報ポップアップ is an information tool for stock investors that allows them to easily access and understand the information of unfamiliar stock brands and companies. With a simple operation, users can find the stock code of companies listed on the Tokyo Stock Exchange and display the stock information in a pop-up window.

To use the tool, simply visit a securities company's website or an investment information site and click on the toolbar icon. The color of the stock code will change, indicating that the tool is activated. Hover the mouse over the stock code to display a pop-up window with the relevant information. To cancel the display, simply reload the page.

Please note that the tool requires Chrome 88 or later, released on January 19, 2021, to function properly. It should also be noted that it does not work when viewing PDF files in the browser.

The latest update fixed a bug that caused the tool to malfunction on the Monex login site (June 10, 2021).