Metaplanet Inc., a Japanese microcap company, has seen a significant surge in its stock price after adding Bitcoin to its balance sheet. The company's stock has been halted for two consecutive days due to a maximum daily gain of 50% each session. Over the past five days, Metaplanet's stock has increased by 164%, making it the best-performing stock in Japan this week. This unprecedented rise is attributed to the company's strategic decision to invest in Bitcoin, which is seen as a hedge against the debasement of the yen. Shares of Metaplanet have soared 158%, breaking the Tokyo Stock Exchange.