A Bitcoin wallet has rapidly grown to become the third largest holder of Bitcoin in the world, accumulating 118,000 BTC worth $3.08 billion in just over three months. The sudden growth has sparked speculation about the owner, with some suggesting it could be a crypto exchange moving funds, while others have more wild theories, such as BlackRock being the "prime suspect."

However, there is no solid evidence to support these theories. BlackRock filed an application for a spot Bitcoin ETF product in June, which sparked a wave of similar filings from other Wall Street heavyweights.