The US Spot ETF Net Inflows on March 21, 2025, are recorded at +$83.1M for BTC and -$18.6M for ETH.

Fig 1. The US Bitcoin and Ethereum ETF inflows.

Key statistics:

• Once again, BlackRock (IBIT) led the inflows of the BTC ETFs and the outflows of the ETH ETFs.
• The total flow for BTC ETFs this week is +$744.3M, with inflows on all 5 trading days.
• The total flow for ETH ETFs this week is -$102.9M, with outflows on all 5 trading days.
• BTC ETFs have recorded 6 consecutive net inflows, totaling $785.6M.
• ETH ETFs have experienced 13 consecutive net outflows, totaling -$389.2M.
• The 11 BTC ETFs' cumulative inflow after 299 trading days is +$36.17B.
• The 9 ETH ETFs' cumulative inflow after 167 trading days is +$2.45B.

Fig 2. 30-Day Net Inflow of 11 Bitcoin ETFs.

Fig 3. 30-Day Net Inflow of 9 Ethereum ETFs.