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Bitcoin spot ETFs have slipped into a six-day outflow trend, losing roughly $1.75 billion since Aug. 15, 2025, while Ethereum spot ETFs recorded a $287.6 million one-day inflow that helped push August flows above $2.45 billion—showing capital rotation from BTC products into ETH ETFs.
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Bitcoin spot ETFs: six consecutive days of net outflows, $1.75B decline since Aug. 15, 2025.
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Ethereum spot ETFs saw $287.6M injected yesterday, lifting August inflows to $2.45B.
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Net assets: Bitcoin ETFs $150.23B; Ethereum ETFs $26.55B (two-week jump from $21B).
Primary keyword: Bitcoin spot ETFs and Ethereum ETFs — Read how flows shifted in Aug. 2025; track inflows, assets, and market impact now.
What are current Bitcoin spot ETF and Ethereum ETF flows telling investors?
Bitcoin spot ETFs are showing sustained net outflows over the past six trading days, signaling fund reallocation, while Ethereum ETFs registered significant inflows that suggest rising investor interest tied to ETH price momentum. Net-asset shifts are visible across major issuers and product families.
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Why are Bitcoin spot ETFs in the red for six days?
Since Aug. 15, 2025, Bitcoin spot ETFs recorded a combined decline of about $1.75 billion. The single session on Aug. 19 erased roughly $523 million from BTC ETFs’ combined value. Major products contributing to withdrawals include BlackRock’s IBIT (~$200 million outflow), Fidelity’s FBTC, and ARK’s ARKB.
How large are Ethereum ETF inflows and which funds led the gains?
Ethereum-based spot ETFs saw $287.6 million added in the most recent session, bringing August cumulative inflows to over $2.45 billion—their second-biggest month. BlackRock’s ETHA and Fidelity’s FETH accounted for the majority of the new liquidity that lifted total ETH ETF assets to $26.55 billion.
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Market data snapshot
Front-loaded figures provide a transparent view of differences between BTC and ETH ETF dynamics as of Aug. 19, 2025.
BTC vs. ETH spot ETF summary (key metrics)
| Metric |
Bitcoin spot ETFs |
Ethereum spot ETFs |
| Total net assets |
$150.23 billion |
$26.55 billion |
| Recent session change |
-$523 million (Aug. 19) |
+$287.6 million (latest session) |
| Month-to-date inflows / outflows |
-$1.3 billion (month decline) |
+$2.45 billion (August) |
| Spot price (approx.) |
$114,900 (BTC), -2.4% 24h |
$4,741 (ETH), +3.6% 24h |
Frequently Asked Questions
How significant are the ETF moves for spot market prices?
ETF flows can influence spot liquidity, but current data show BTC price relatively stable despite ETF outflows, suggesting funds may be rotating assets rather than triggering broad sell pressure on the underlying.
What does a $2.45 billion August inflow into ETH ETFs indicate?
Large monthly inflows reflect rising investor demand for ETH exposure via spot ETF wrappers. Combined with positive 24-hour price moves, this suggests increased allocation to Ethereum strategies in August 2025.
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Key Takeaways
- BTC ETFs in net outflow: Six-day decline totaling ~$1.75B since Aug. 15, 2025 — monitor issuer-level withdrawals.
- ETH ETFs trending up: $287.6M one-day inflow and $2.45B month-to-date growth; ETH ETF assets rose to $26.55B.
- Rotation signal: Price stability for BTC amid outflows and ETH price gains point to portfolio reallocation rather than market-wide liquidation.
Conclusion
Short-term ETF flows show a clear divergence: Bitcoin spot ETFs face consecutive outflows while Ethereum spot ETFs attract fresh liquidity. Investors tracking ETF data should watch issuer-level movements, net-asset trends, and spot price correlations. For ongoing coverage and updated metrics, follow COINOTAG market reports and data updates.
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