According to Cas Abbé, Bitcoin ETFs recorded significant inflows yesterday, acquiring approximately 3,114 BTC valued at $319.56 million, while Ethereum ETFs saw their largest inflow in three weeks with 24,600 ETH worth $63.47 million (source: Cas Abbé on Twitter, May 15, 2025). These robust ETF inflows are concrete indicators of heightened institutional interest, signaling potential upward price momentum in both Bitcoin and Ethereum markets. Traders should note that such inflows typically tighten supply on exchanges, often leading to increased price volatility and potential bullish sentiment. Additionally, ongoing rumors of major US-Japan deals may reinforce positive market sentiment, further impacting crypto asset flows (source: Cas Abbé on Twitter, May 15, 2025).