PANews reported on April 22 that according to Protos, BlackRock's flagship spot Bitcoin ETF currently holds 573,187 Bitcoins, while Strategy (formerly MicroStrategy) holds 538,200 Bitcoins. Their combined holdings of 1,111,387 Bitcoins exceed the number rumored to belong to Satoshi Nakamoto. Arkham Intelligence estimates that Satoshi Nakamoto holds about 1,096,000 Bitcoins, and other estimates are usually as high as 1.1 million Bitcoins.