According to the source, a social post claims BlackRock added $260M in BTC and $360M in ETH to its holdings, but the post does not cite an SEC filing, fund ticker, or date, so the claim is unverified at this time; traders should seek primary confirmations before reacting. Source: the provided social post. For verification, check BlackRock iShares daily holdings and basket files for the iShares Bitcoin Trust (IBIT) and the iShares Ethereum Trust (ETH ETF), looking for increases in shares outstanding, total BTC/ETH held, and AUM that would corroborate the dollar additions. Source: BlackRock iShares fund website and daily holdings disclosures. Also confirm net creations on authorized participant activity via ETF flow dashboards and SEC EDGAR for any related updates; without these, treat the headline as unconfirmed to avoid headline risk. Source: SEC EDGAR database and ETF flow reports. Trading takeaway: until primary data confirms the inflows, prioritize liquidity-aware orders, monitor BTC and ETH spot-derivatives basis and IBIT/ETH ETF premiums-discounts for signs of real demand, and use tight risk controls to manage potential whipsaws. Source: BlackRock iShares disclosures and standard ETF primary market mechanics.

According to the source, a claim is circulating that BlackRock’s spot Ethereum ETF purchased 78,920 ETH worth $363.2M on Sept. 15; traders should verify this against BlackRock iShares’ official daily holdings disclosure, SEC EDGAR filings, and NSCC creation basket files before positioning, source: BlackRock iShares; U.S. SEC EDGAR; DTCC/NSCC. If official data confirms a ≥70k ETH net creation on that date, this implies material net inflows that can tighten spot–futures basis; monitor CME front‑month ETH futures basis, perpetual funding rates, and the ETH/BTC spread for confirmation signals, source: CME Group; major derivatives venues’ public funding data. Cross‑check aggregate spot ETH ETF creations/redemptions and shares outstanding across issuers to distinguish rotation from new money, source: issuers’ daily holdings pages; Cboe/Nasdaq listing data.

According to @rovercrc, BlackRock purchased $169.3 million worth of Bitcoin (BTC) (source: Crypto Rover post on X, Sep 10, 2025). The post does not include transaction evidence, ETF flow data, or a link to an official BlackRock filing (source: same X post). Traders should seek confirmation via the iShares Bitcoin Trust (IBIT) daily holdings and flow updates published by BlackRock (source: BlackRock iShares official site). Official confirmations can also appear in SEC filings such as prospectuses, 8-Ks, or 13F reports (source: U.S. SEC EDGAR). If IBIT shows net share creations of a similar magnitude, that would imply corresponding spot BTC purchases under the ETF creation mechanism (source: IBIT prospectus filed with the SEC).