According to Farside Investors, ARK recorded a daily net flow of US$40.7 million within U.S. Bitcoin ETF flows on Sep 16, 2025 (source: Farside Investors). Farside Investors also directs readers to its dataset and disclaimers at farside.co.uk/btc for the full Bitcoin ETF flow breakdown across issuers (source: Farside Investors). The update labels the figure as Bitcoin ETF Daily Flow in US dollars and specifies only the ARK value in the post text (source: Farside Investors).