BTC 15-minute increase of 0.49%: due to ETF capital inflows and increased long positions in derivatives resonating 2026-04-13 22:45 to 2026-04-13 23:00 (UTC), BTC price recorded a +0.49% return, fluctuating rapidly within the 74148.0 to 74741.9 USDT range, with an amplitude of 0.80%. During the anomaly window, market attention increased, spot and derivatives trading became active, and volatility intensified. The main driver of this anomaly is the continuous net inflow of ETF funds boosting spot market buying, while leveraged long positions in derivatives markets increased, with overall funding rates remaining bullish. The open interest of BTC perpetual contracts rose in tandem, indicating leverage-driven upward movement in spot prices, with net subscriptions to spot ETFs continuously supporting actual demand. The BTC balance on exchanges dropped below 2.3 million coins, hitting a multi-year low, with spot selling pressure easing and liquidity tightening further pushing prices higher in the short term. Additionally, 24-hour spot trading volume increased by over 50% compared to the previous day, significantly improving market liquidity. Coupled with increased institutional buying, macroeconomic stabilization, and clearer regulatory developments, these factors provide external support for bullish sentiment. Leading institutions continued to increase their BTC holdings, further strengthening the long-term allocation logic. On-chain data shows no abnormal whale movements or panic-driven anomalies, and liquidation amounts in derivatives are within normal ranges. Short-term risks have not been triggered by a single event but are amplified by multiple structural resonances. Currently, attention should be paid to leverage volatility risks caused by rising derivatives positions and funding rates, as well as liquidity tightening due to declining exchange balances. If spot buying momentum slows or sudden events occur, the potential for a correction increases. It is recommended to continuously monitor perpetual contract positions, ETF subscription fund flows, and large on-chain fund activities, and remain alert to short-term sharp fluctuations. For more real-time market updates, please follow subsequent news flashes. #加密市场小幅下跌