Bitcoin ETFs experienced a significant outflow of $614 million, indicating a shift in investor sentiment.BlackRock's IBIT suffered the most with $430.8 million in net outflows, followed by Fidelity's FBTC and ARK Invest's ARKB.Bitwise's BITB and Grayscale Mini's BTC ETF also saw notable outflows, losing $35.3 million and $16.2 million, respectively.Several other Bitcoin ETFs showed no activity in terms of net flows during the day, possibly reflecting heightened market uncertainty.