Metaplanet issued $13.3 million in zero-interest bonds to fund ongoing Bitcoin purchases.Metaplanet is strategically "buying the dip" in Bitcoin, taking advantage of the recent price decrease.Metaplanet now holds $267 million worth of Bitcoin, positioning itself as a significant player in the digital asset space.The risks of Bitcoin investments have been highlighted by GameStop's debt-for-BTC offering and subsequent stock price drop.