According to Farside Investors, Ark's US Bitcoin ETF experienced a significant outflow of $120.1 million on May 30, 2025, indicating a notable shift in institutional sentiment. Such large-scale outflows can signal bearish sentiment and may increase short-term volatility for Bitcoin prices, as ETF flows are closely monitored by crypto traders for market direction. This development could prompt traders to re-evaluate risk exposure and adjust positions, especially as ETF inflows and outflows often serve as leading indicators for broader crypto market trends (Source: Farside Investors, farside.co.uk/btc/).