PANews reported on May 14th that Metaplanet, Japan's largest Bitcoin holder, has postponed its preferred stock listing plans. CEO Simon Gerovich stated that the underdeveloped preferred stock market in Japan, regulatory requirements that preferred stock dividends must be supported by sustainable cash flow, and the company's planned monthly dividend payments—far exceeding the Japanese market's usual once- or twice-a-year practice—were the main reasons for the delay. The planned instrument would have been Japan's seventh listed preferred stock and the first perpetual preferred stock. Metaplanet previously announced the launch of two types of listed preferred stocks: Mars and Mercury.