According to the source, a social post claims BlackRock’s iShares Bitcoin Trust (IBIT) became the fastest ETF to reach $100B in AUM, and traders should confirm this via the official iShares product page, SEC EDGAR disclosures, or Bloomberg before acting on the headline. source: BlackRock iShares; U.S. SEC EDGAR; Bloomberg For trading impact, focus on net creations and redemptions across U.S. spot Bitcoin ETFs because flows, not headline AUM, drive primary market BTC demand. source: SEC Rule 6c-11; iShares ETF creation/redemption primer In 2024, sustained net inflows into U.S. spot Bitcoin ETFs coincided with BTC upside, making daily flow prints a key short-term signal to monitor. source: CoinShares Digital Asset Fund Flows; Bloomberg Actionable checks: verify IBIT’s latest basket files, authorized participant activity, and aggregate U.S. spot BTC ETF net flows; persistent positive creations tend to support BTC on risk-on sessions. source: BlackRock iShares; ETF issuer basket files; CoinShares Digital Asset Fund Flows