Which Crypto ETF Drew the Most Money Last Week? Not Bitcoin, and Not Ethereum

Market impact: mixed, with clear evidence of rotation rather than broad crypto accumulation.

The headline flow is bullish for Zcash (ZEC) and potentially supportive for selected altcoins, but it is not an unambiguous bullish signal for BTCUSD. ZEC attracted $98.2 million while Ethereum products experienced $140 million of outflows; across all 14 products, aggregate flows were still approximately negative $5 million. This suggests capital was being reallocated within crypto rather than entering the asset class broadly.

For BTCUSD, the signal is initially neutral to mildly bearish on a relative basis. Bitcoin ETFs ended the week with only a $6.2 million net inflow after large midweek withdrawals, the smallest absolute weekly result in 141 weeks. The sharp Friday recovery indicates dip-buying and underlying demand, but the failure to produce meaningful weekly inflows suggests institutional conviction remained limited after the policy shock.

The more important market message is product and narrative rotation. Investors appear willing to take exposure to narrower altcoin themes even while reducing or avoiding ETH. If ZEC’s inflows persist, they could reinforce momentum, liquidity, and speculative interest in privacy-oriented assets. However, the fund was only launched in late August, and its four-week inflow streak plus 40.5% increase in assets creates a high risk that the flow is launch-related allocation or momentum chasing rather than durable institutional demand.

Ethereum’s outflows are comparatively more concerning for the broader altcoin complex. They may reflect reduced tolerance for large-cap smart-contract exposure, temporary profit-taking, or a preference for higher-beta narratives. If ETH continues to see redemptions while BTC stabilizes, crypto performance could become increasingly fragmented rather than market-wide bullish.

The article also links the volatility to a failed Senate cloture vote on the Digital Asset Market CLARITY Act and an unexpected 25-basis-point Federal Reserve rate increase. Those developments are bearish for liquidity-sensitive crypto assets because regulatory uncertainty can delay institutional allocations, while tighter monetary policy raises the opportunity cost of holding non-yielding assets. Bitcoin’s rebound after the initial selloff limits the immediate bearish interpretation, but continued ETF outflows following the rate hike would be a stronger warning for BTCUSD.

What traders should monitor next:

• Whether Bitcoin ETF flows remain positive for several sessions rather than relying on a single rebound day.
• Whether ETH outflows continue or reverse.
• Whether ZEC inflows persist after the fund’s initial launch phase.
• Relative performance of BTC, ETH, and major altcoins; sustained altcoin outperformance would confirm rotation, while simultaneous outflows would indicate broader risk reduction.
• Further developments around crypto-market legislation and the Federal Reserve’s policy path.

Overall, the data is bullish for ZEC, mixed for altcoins, and not sufficiently supportive to establish a broad bullish case for BTCUSD.