March 13 Crypto ETF Flows: $97M Ethereum Lead, $42M Bitcoin Inflows

Ethereum ETFs posted the strongest daily demand, recording net inflows of 44,240 ETH, worth about $96.7m. This institutional buying pressure was concentrated in a few key funds, with Fidelity's Ethereum ETF [FETH] adding 25,174 ETH in a single day and BlackRock's ETHA ETF seeing 9,062 ETH in inflows.

This powerful daily move contrasts with Ethereum's more mixed weekly picture. Despite the robust inflows, the asset's ETFs posted net inflows of 1,540 ETH over the past seven days. This created a sharp short-term buying pressure that stands in contrast to the asset's more cautious weekly flow pattern.

The bottom line is clear: on March 13, institutional capital flowed decisively into Ethereum, led by Fidelity and BlackRock. This created a sharp short-term buying pressure that stands in contrast to the asset's more cautious weekly flow pattern.

Bitcoin's Steady, But Slower, Daily Inflow

Bitcoin ETFs added 570 BTC worth around $41.9m on March 13. This steady daily inflow is a clear contrast to Ethereum's stronger lead, but it masks a more cautious weekly trend. The dominant player remains BlackRock's iShares Bitcoin Trust [IBIT], which recorded 658 BTC in daily inflows earlier in the week.

The critical tension is between the positive daily print and the negative weekly flow. While Bitcoin ETFs saw inflows on the day, the broader weekly picture shows a net outflow of over $125 million. This pattern of uneven accumulation, with redemptions exceeding creations, has persisted for weeks and is a key factor keeping the asset's price rangebound.

The bottom line is that institutional demand for Bitcoin is selective and fragile. Daily inflows like IBIT's are positive, but they are not enough to offset the larger weekly outflows. This creates a volatile setup where single-day buying can be quickly reversed by a redemption-heavy session.

The Catalyst: BlackRock's Staked Ethereum ETF Launch

The immediate catalyst for the March 13 flow data is clear: BlackRock launched its iShares Staked Ethereum Trust (ETHB) on Nasdaq the previous day. This is the first yield-generating crypto ETF, offering investors a new structural attraction. The product stakes a portion of its ether holdings, providing a yield of roughly 3.1% annually, which creates a fresh incentive for institutional capital to enter the Ethereum ecosystem.

This launch directly explains the observed buying pattern. The powerful daily inflows into Ethereum ETFs, led by Fidelity and BlackRock's non-staking ETHA fund, appear to be capital drawn by the broader institutional momentum BlackRock is driving. ETHB's entry adds a new layer of appeal, potentially drawing assets away from Bitcoin and into Ethereum. The timing is critical: BlackRock's dominant Bitcoin ETF, IBIT, had pulled in $115 million on March 11, just before launching ETHB, suggesting a strategic shift in its product suite.

The key watchpoints now are sustainability and spillover. The critical question is whether Ethereum's daily inflow momentum can overcome its more cautious weekly trend, where net flows have been positive but modest. Simultaneously, investors must monitor if Bitcoin ETF redemptions accelerate, as the launch of a competing, yield-bearing product could intensify outflows from the established Bitcoin ETFs.