Bitcoin ETFs have experienced net outflows on nine of the past ten days, according to data from cryptocurrency sentiment platform Santiment. This trend is attributed to retail investors' frustration as Bitcoin struggles to surpass the $80,000 mark. Analysts interpret this as a sign of retail capitulation rather than a bearish market sentiment, noting that ETF flows are more indicative of retail sentiment than institutional activity. In contrast, Ethereum ETFs have also seen net outflows since mid-May, though the scale is less significant than social media suggests. Recently, Ethereum ETF trading activity has shifted to net inflows, indicating a potential change in market dynamics.