According to ChainCatcher, Simon Gerovich, the CEO of the Japanese listed company Metaplanet, stated that the company's stock may be the most shorted in Japan, but it may be difficult to successfully short Bitcoin.
Trading data shows that yesterday Metaplanet's over-the-counter trading volume ranked third among 12,000 companies, with trading volume ranking fourth. As of now, the company holds 7,800 Bitcoins, valued at approximately 833 million USD.