BNP Paribas, the second-largest bank in Europe, has recently disclosed its investment in BlackRock's Bitcoin ETF, marking a significant move in the financial sector's engagement with cryptocurrency. The bank's exposure to Bitcoin was revealed through 13F filings with the SEC. This development coincides with a notable trend in the cryptocurrency market, where major US Bitcoin ETFs, including BlackRock's IBIT, experienced substantial net outflows. Specifically, the total net outflow for Bitcoin spot ETFs on May 2nd was $564 million, with BlackRock's IBIT ETF recording its first net outflow of $36.93 million.