Robinhood’s decision to list Strategy’s four preferred stocks marks a rare break from its own investment policies — and could strengthen Michael Saylor’s bitcoin playbook without diluting holders of the firm’s common stock, MSTR. The brokerage began offering trading in four Strategy (MSTR) preferred stocks on Oct. 2, with tickers STRC, STRD, STRF, and STRK now available on the platform. The next day, CEO Vlad Tenev confirmed the move on X, saying Robinhood had “heard from many Strategy investors that t ...