Bitcoin ETFs have experienced $1 billion in outflows over the past four days as the crypto market dropped more than 3% in the last 24 hours. The downturn is attributed to increased market volatility, fears of a US-China trade war, and concerns over a potential AI bubble burst. Bitcoin's 90 and 180-day volatility has surged to 47%, indicating heightened market instability. David Siemer from Wave Digital Assets highlighted that forced liquidations and thin order books are intensifying the decline. Robin Singh of Koinly suggested that Bitcoin needs to surpass $110,000 to reverse the current downtrend.