Crypto ETF Month — August 2025: net +$3.1B
August 2025 saw a total net flow of +$3.1B into spot crypto ETFs, with Ethereum leading the inflows. Bitcoin, however, faced notable outflows during the same period.
TL;DR
- Net flow: +$3.1B
- Total inflows: +$5.0B
- Total outflows: -$1.8B
- Strongest day: Aug 11 (+$1.2B) · Weakest day: Aug 1 (-$964.6M)
Monthly Overview
In August 2025, the net flows into spot crypto ETFs amounted to +$3.1B, driven primarily by Ethereum. Only two assets recorded flows during the month, with Ethereum seeing significant inflows.
Flows by Asset
ETH
Net: +$3.9B / Inflow: +$4.1B / Outflow: -$242.0M
| Fund | Flow |
|---|---|
| BlackRock | +$3.4B |
| Fidelity | +$493.2M |
| Grayscale | -$214.7M |
| Grayscale ETH | +$198.7M |
| VanEck | +$26.5M |
| Bitwise | -$21.1M |
| 21Shares | +$11.3M |
| Invesco | -$6.2M |
| Franklin | +$1.5M |
BTC
Net: -$749.2M / Inflow: +$840.3M / Outflow: -$1.6B
| Fund | Flow |
|---|---|
| BlackRock | +$706.9M |
| Fidelity | -$662.2M |
| 21Shares | -$621.3M |
| Grayscale | -$292.7M |
| VanEck | +$56.3M |
| Grayscale BTC | +$51.6M |
| Franklin | +$16.7M |
| Bitwise | -$9.0M |
| Invesco | +$6.5M |
| Valkyrie | -$4.3M |
| WisdomTree | +$2.3M |
Weekly Breakdown
| Week | Net flow |
|---|---|
| Aug 1 | -$964.6M |
| Aug 4 – Aug 8 | +$579.8M |
| Aug 11 – Aug 15 | +$3.4B |
| Aug 18 – Aug 22 | -$1.4B |
| Aug 25 – Aug 29 | +$1.5B |
Biggest Fund Moves
Largest inflows
- BlackRock (ETH): +$3.4B
- BlackRock (BTC): +$706.9M
- Fidelity (ETH): +$493.2M
- Grayscale ETH (ETH): +$198.7M
- VanEck (BTC): +$56.3M
Largest outflows
- Fidelity (BTC): -$662.2M
- 21Shares (BTC): -$621.3M
- Grayscale (BTC): -$292.7M
- Grayscale (ETH): -$214.7M
- Bitwise (ETH): -$21.1M
Market Interpretation
Ethereum attracted substantial capital, with a net inflow of +$3.9B, largely from BlackRock. In contrast, Bitcoin experienced a net outflow of -$749.2M, indicating a shift in institutional interest away from it. The strongest day for inflows was August 11, which saw +$1.2B, while the worst day was August 1, reflecting a substantial drop in sentiment.
Conclusion
The month closed with a total net figure of +$3.1B, highlighting a clear preference for Ethereum over Bitcoin. This trend may suggest a growing confidence in Ethereum's market position among institutional investors.