Here's the latest snapshot of institutional crypto capital movements as of December 18:

**Bitcoin ETF Activity:**
Spot Bitcoin ETFs showed mixed signals—the 24-hour period pulled in 4,952 BTC worth $434.82M, a solid green candle. However, zooming out to the weekly view reveals the other side of the story: outflows of 2,475 BTC (-$217.3M) suggest some profit-taking or reallocation among institutional players.

**Ethereum ETF Flows:**
Ether's ETF picture looks decidedly bearish across both timeframes. Day-to-day outflows hit 7,943 ETH (-$23.59M), while the seven-day cumulative shows a steeper departure with 160,507 ETH leaving these vehicles (-$476.71M). This sustained outflow pattern warrants attention from active traders.

**Solana ETF Momentum:**
Solana stands out as the contrarian play here. Single-day inflows reached 99,286 SOL (+$12.61M), and the weekly picture explodes with 503,145 SOL in cumulative inflows—the standout performer among the three.

These flows paint a picture of shifting institutional preferences, with capital flowing away from Ethereum while showing appetite for Bitcoin and particularly Solana.