BlackRock's iShares Core MSCI EAFE ETF has increased its investment in Metaplanet by $6.75 million, according to BitcoinTreasuries.NET. The ETF now holds 3.17 million shares of Metaplanet, valued at over $18 million. This move reflects a growing interest in Metaplanet, as the ETF continues to expand its portfolio in the tech sector.