According to the source, US BTC spot ETFs recorded $223M in net inflows and US ETH ETFs posted $47.8M in net inflows for the day, indicating a flow-positive session across both assets (source). According to the source, BlackRock led issuer flows with $246M into its BTC product and $144M into its ETH product (source).

According to @cas_abbe, BTC ETFs recorded $292M in net inflows while ETH ETFs saw $62M in net outflows ahead of the FOMC, indicating active positioning into the policy event (source: @cas_abbe on X, Sep 17, 2025). According to @cas_abbe, this flow divergence suggests a market bias toward BTC over ETH into Chair Powell’s remarks, with Wall Street preparing for elevated volatility today (source: @cas_abbe on X, Sep 17, 2025). According to @cas_abbe, traders may prioritize BTC over ETH pairs, manage exposure tighter, and monitor implied volatility into the announcement given the pre-FOMC flow skew and volatility expectations (source: @cas_abbe on X, Sep 17, 2025).

According to @MilkRoadDaily, Ethereum’s validator exit queue has spiked, with more validators attempting to unstake than enter for the first time since withdrawals went live (source: @MilkRoadDaily). The source attributes outflows to rotations into ETH ETFs that do not require staking exposure, moves toward higher yields in tokenized treasuries, and operational reshuffling by some providers (source: @MilkRoadDaily). As a result, more ETH is returning to liquid markets and staking APR will adjust higher in real time as validators leave (source: @MilkRoadDaily). The source characterizes the near term as bearish due to increased liquid supply, and the long term as bullish as higher yields draw capital back, marking Ethereum’s first real stress test of its staking design (source: @MilkRoadDaily).

According to @lookonchain (X, Sep 16, 2025), 10 Bitcoin ETFs recorded a net inflow of 2,210 BTC totaling $254.97M. According to @lookonchain (X, Sep 16, 2025), BlackRock saw inflows of 2,270 BTC worth $262M and now holds 761,906 BTC valued at $87.92B. According to @lookonchain (X, Sep 16, 2025), this implies non-BlackRock BTC ETFs had net outflows of about 60 BTC and BlackRock represented roughly 103% of the BTC ETF net inflow. According to @lookonchain (X, Sep 16, 2025), 9 Ethereum ETFs posted a net inflow of 87,266 ETH totaling $392.87M. According to @lookonchain (X, Sep 16, 2025), BlackRock added 80,768 ETH worth $363.62M and holds 3,801,084 ETH valued at $17.11B, implying other issuers netted about 6,498 ETH and BlackRock represented roughly 93% of the ETH ETF net inflow. According to @lookonchain (X, Sep 16, 2025), the USD-per-unit figures imply reference prices near $115.4k per BTC and $4.5k per ETH based on the reported flows.

According to @MilkRoadDaily, ETH ETFs were slow to start but have shown sustained momentum with a steep climb since July 2025, indicating strong ETH trend momentum that traders monitor for continuation signals (source: @MilkRoadDaily, X, Sep 4, 2025).

According to @MilkRoadDaily, ETH ETFs recorded +$4.04B in net inflows in August while BTC ETFs saw -$624M in net outflows, making ETH funds the monthly leader by flows (source: @MilkRoadDaily, X post dated Aug 29, 2025). According to @MilkRoadDaily, the post highlights that the tide may be shifting in crypto ETF demand, signaling a relative preference for ETH over BTC during the period (source: @MilkRoadDaily, X post dated Aug 29, 2025).

According to @MilkRoadDaily, Goldman Sachs is the largest institutional holder of ETH ETFs as of Q2, with other major holders including Jane Street, Millennium, and D. E. Shaw, citing a chart credited to @JSeyff. According to @MilkRoadDaily, most ETH ETF inflows occurred after July, so Q3 disclosures are expected to be much larger than Q2. According to @MilkRoadDaily, this timing implies Q2 filings likely understate actual institutional exposure that will appear in Q3.

According to Matt Hougan, citing FarsideUK data, August ETF flows show BTC ETFs at net outflows of approximately $800 million and ETH ETFs at net inflows of about $4.0 billion (source: Matt Hougan on X, Aug 28, 2025; data source: FarsideUK). Hougan characterized this as a relentless bid for ETH, underscoring sustained demand in ETH-listed funds (source: Matt Hougan on X, Aug 28, 2025). The resulting $4.8 billion monthly flow differential in favor of ETH is a trade-relevant datapoint for tracking relative demand in the ETH BTC pair and ETF-driven spot liquidity, based on the FarsideUK figures referenced by Hougan (source: FarsideUK via Matt Hougan on X, Aug 28, 2025).

According to @FarsideUK, daily Ethereum ETF net flows totaled 443.9 million dollars on 2025-08-25, led by ETHA 314.9 million, FETH 87.4 million, ETH 53.3 million, ETHW 9.7 million, CETH 5.6 million, QETH 2.2 million, with zero for ETHV and EZET and a -29.2 million outflow for ETHE, source: farside.co.uk/eth/. ETHA represented about 71% of the day's net inflow and FETH about 20%, showing concentration of net inflows among leaders while ETHE registered net redemptions, source: farside.co.uk/eth/.

According to Farside Investors, US Ethereum ETFs recorded a total net inflow of $287.6 million on 2025-08-21. According to Farside Investors, inflows were led by ETHA at $233.6 million, followed by FETH at $28.5 million, ETH at $6.4 million, ETHV at $6.2 million, ETHE at $5.9 million, and ETHW at $7 million. According to Farside Investors, CETH, QETH, and EZET posted zero net flow on the day. Based on Farside Investors’ data, ETHA accounted for roughly 81% of the daily net inflow, highlighting concentrated ETF primary flow in a single product.

According to @rovercrc, ETH supply is being absorbed by ETFs faster than Bitcoin, signaling capital rotation into ETH (source: @rovercrc on X, Aug 20, 2025). For trading, monitor ETH/BTC relative strength and compare daily ETH ETF net creations versus BTC ETF flows to validate or fade the rotation narrative (source: @rovercrc on X, Aug 20, 2025). The post frames this as capital rotating toward ETH, implying near-term focus on ETH spot supply, price discovery, and spreads versus BTC among traders evaluating momentum and risk (source: @rovercrc on X, Aug 20, 2025).

According to Eric Balchunas, Ether ETFs posted about $17 billion in weekly trading volume, surpassing the prior record as activity accelerated sharply in July after roughly 11 months of relative dormancy (source: Eric Balchunas on X, Aug 15, 2025). He added that the past six weeks concentrated roughly a year’s worth of trading activity, highlighting an exceptional pickup in ETH ETF turnover that traders can reference for market participation and execution conditions (source: Eric Balchunas on X, Aug 15, 2025).

According to @EricBalchunas, spot Bitcoin and Ether ETFs recorded about 40 billion USD in trading volume this week, marking their biggest week on record and driven by strong participation from Ether ETFs (source: Eric Balchunas on X, Aug 15, 2025). The combined turnover is comparable to a Top 5 ETF or a Top 10 individual stock by volume, underscoring exceptional activity in BTC and ETH spot ETF markets (source: Eric Balchunas on X, Aug 15, 2025).

According to Lookonchain, on Aug 14, 10 Bitcoin (BTC) ETFs recorded a net flow of +452 BTC valued at +$53.9 million, with ARK21Shares contributing inflows of 299 BTC (+$35.62 million) and holding 45,656 BTC ($5.44 billion) in total, source: Lookonchain. According to Lookonchain, 9 Ethereum (ETH) ETFs posted a net flow of +154,179 ETH totaling +$724.02 million, led by BlackRock’s iShares with inflows of 105,900 ETH ($497.3 million), source: Lookonchain.

According to @MilkRoadDaily, ETH ETFs have recorded higher net inflows than BTC ETFs for the fourth consecutive day (source: @MilkRoadDaily). According to @MilkRoadDaily, this divergence comes despite BTC’s market capitalization being roughly 4.3 times larger, indicating comparatively stronger near-term demand for ETH ETF exposure (source: @MilkRoadDaily). According to @MilkRoadDaily, the sustained inflow advantage is a trading-relevant signal for ETH/BTC relative momentum and rotation monitoring (source: @MilkRoadDaily).

According to Milk Road (@MilkRoadDaily), more than 1,300 ETFs have launched since 2024, with crypto dominating the new issuance landscape (source: Milk Road on X). According to Milk Road (@MilkRoadDaily), the top 4 newly launched ETFs are crypto-related and 10 of the top 20 are crypto-related (source: Milk Road on X). According to Milk Road (@MilkRoadDaily), among these leaders, 5 are tied to BTC, 3 to ETH, and 2 to MSTR (source: Milk Road on X). According to Milk Road (@MilkRoadDaily), this composition shows institutional buyers are accumulating Bitcoin and some Ethereum through ETF products (source: Milk Road on X).

According to @KobeissiLetter, spot Ether ETFs recorded a single-day record of $1 billion in net inflows on Monday, highlighting strong demand for ETH exposure (source: The Kobeissi Letter on X). The same update adds that Bitcoin ETFs saw $178 million in net inflows that day, citing ZeroHedge as the underlying data source (source: The Kobeissi Letter on X, citing ZeroHedge). Based on those figures, ETH ETF net inflows were approximately 5.6 times BTC ETF net inflows for the session, underscoring a relative flow tilt toward ETH over BTC that day (source: The Kobeissi Letter on X). Since May, these funds have accumulated more than $8 billion in net inflows, indicating sustained capital allocation into crypto ETFs over the period reported (source: The Kobeissi Letter on X).

According to the source, ETH ETFs posted their largest single-day inflow to date yesterday, signaling a surge in institutional demand for ETH exposure (source: X post dated Aug 12, 2025). The source characterizes this as institutions materially increasing allocations rather than marginal buying, highlighting a step-up in participation intensity (source: X post dated Aug 12, 2025). If these inflows are concentrated in spot or physically backed ETH ETFs, net creations typically require acquiring the underlying ETH, which can translate inflow spikes into buy-side pressure during creation windows (source: U.S. SEC Investor Bulletin: Exchange-Traded Funds, creation/redemption process). Traders can monitor continuation in daily ETF flow prints as a short-term sentiment gauge for ETH momentum and liquidity conditions (source: X post dated Aug 12, 2025; U.S. SEC Investor Bulletin on ETFs).

According to Lookonchain, across 10 Bitcoin ETFs, aggregate net flow on Aug 12 was +1,586 BTC, equivalent to +$189.72M (source: Lookonchain, Aug 12, 2025). iShares (BlackRock) reported inflows of 1,158 BTC worth +$138.58M and currently holds 743,609 BTC valued at $88.97B (source: Lookonchain, Aug 12, 2025). Across 9 Ethereum ETFs, aggregate net flow on Aug 12 was +231,717 ETH, or +$1.03B (source: Lookonchain, Aug 12, 2025). iShares (BlackRock) recorded +149,168 ETH of inflows totaling $663.05M among ETH products (source: Lookonchain, Aug 12, 2025).

According to @FarsideUK, total US-listed Ethereum ETF net inflows reached $461 million on Aug 8, 2025, based on Farside Investors data published on X and farside.co.uk/eth/. ETHA led with $254.7 million, followed by FETH at $132.3 million, ETHE at $26.8 million, and ETH at $38.2 million, as reported by Farside Investors via X and farside.co.uk/eth/. ETHW posted $7.8 million and QETH $1.2 million, while CETH, ETHV, and EZET recorded zero net flow for the day, per Farside Investors’ X post and website. For traders, creations were concentrated in ETHA and FETH, indicating where primary market demand clustered among US Ethereum ETFs on the day, according to Farside Investors’ published flow data.