BTC 15-minute drop of 0.73%: Technical support fails and on-chain congestion converges to suppress the rebound

Between 2026-04-02 02:00 and 2026-04-02 02:15 (UTC), the BTC price fluctuated within the 66,858.6 - 67,355.0 USDT range. Within 15 minutes, the return rate was -0.73%, and the amplitude reached 0.74%. During this period, market attention increased, short-term volatility intensified, and investor sentiment shifted significantly toward caution.

The main driver behind this deviation is that the key technical support level at $66,700 was broken, along with the RSI dropping below 30, indicating that short-term momentum weakened rapidly and investors’ willingness to sell increased. In addition, stronger technical reversal signals shook bullish confidence, driving BTC to experience a sharp pullback in the short term.

At the same time, widespread congestion in the on-chain Mempool created a resonance effect. A large number of low-fee Ordinals-type transactions flooded in, and low-fee levels in the Mempool (1–2 sat/vByte) accumulated as high as 771,400 virtual bytes. With processing capacity constrained, some transactions experienced settlement delays, leading to a decline in short-term liquidity and price discovery efficiency. Overall, ETF capital flows and on-chain large fund flows remained stable; mainstream exchange funding rates and futures positions also showed no anomalies, indicating that this selloff was not driven by panic-driven liquidation pressure or systemic capital outflows. Various structural factors compounded and amplified the market’s resonance pressure.

Please note that current Mempool congestion and the technical breakdown introduce liquidity risks. If the support level continues to fail and network delays are not resolved, it may further worsen the likelihood of the price probing lower. Investors are advised to monitor support around $66,700, Mempool transfer progress, ETF net fund flows, and changes in market sentiment, and to remain alert to the risk of short-term price tug-of-war and worsening liquidity. For more market anomalies and on-chain indicators, you can continue to follow the latest news updates.