A significant outflow occurred in Bitcoin ETFs - investors withdrew $171 million in the largest single-day flow in the past three weeks. This $171 million outflow indicates market uncertainty and position closing activities. Normally, such large outflows are signs of either profit-taking or an upcoming volatility expectation. However, the $171 million figure, despite being a substantial flow on an ETF basis, is not yet at panic levels when considering the overall market capitalization. My observations: If this outflow continues, support levels may be tested. I am currently in a waiting mode.