Evidence directly shows a listing page for 'Strategy Inc Variable Rate Series A Perpetual Stretch Preferred Stock (STRC)' on the Robinhood platform. This is corroborated by the existence of listing pages for other preferred stocks (e.g., AFSIP, C-N) on Robinhood. While a Robinhood support page and an older article state preferred stocks are not tradable, the live, specific stock listings are the most direct and current evidence, indicating the support documentation may be outdated.