The plugin display the list of S&P 500 companies. You can place the shortcode [mx_display_s_and_p_500] to your website and to allow your users looking for a company by name.
This plugin is based on the https://datahub.io/ functionality (https://pkgstore.datahub.io/core/s-and-p-500-companies-financials/3/datapackage.json). List of companies that you can see, is provided by https://datahub.io/ (free resource).
How does it work?