BTC 15-minute oscillation downward -0.71%: Exchange platform abnormal selling combined with whale large transfers amplifying volatility

BTC3,03%

On February 17, 2026, from 17:30 to 17:45 (UTC), Bitcoin experienced a sharp decline of -0.71% within just 15 minutes, with significant volatility attracting market attention. The price showed a rapid downward movement, reflecting short-term market pressure and a temporary weakening of risk appetite. Trading volume also increased simultaneously, indicating intense divergence between bullish and bearish funds during this window.

The primary driver of this anomaly was a sudden large-scale sell-off of BTC on a major trading platform. Due to a mistaken airdrop announcement by a leading platform in South Korea, the BTC/KRW trading pair on that platform briefly plummeted by as much as 17%, triggering a synchronized market sell-off. This event directly disrupted the balance between the platform’s and the global average prices, causing panic selling among some funds and retail investors. Short-term liquidity sharply declined, further pushing the BTC price downward.

Additionally, on-chain data showed that whale accounts continued building positions, with large transfers and concentrated operations during the price correction phase, exacerbating minute-level volatility. Meanwhile, the global macro environment remains highly uncertain, with Federal Reserve policies and geopolitical risks reducing investors’ risk appetite. The announcement by South Korean regulators to introduce AI-based abnormal trading monitoring systems also heightened market sensitivity to regulatory upgrades. The resonance of multiple factors amplified market sentiment, leading some institutions to adopt a wait-and-see approach or actively rebalance their portfolios, contributing to short-term selling pressure.

Current minute-level volatility risk has significantly increased, and the combined effect of sudden platform events and large transactions warrants ongoing attention. In the short term, it is recommended to focus on key technical support levels below BTC, closely monitor large on-chain fund flows, and stay updated on macro regulatory developments. Investors should remain vigilant against short-term pullback risks caused by extreme market shocks. For more market updates, maintain continuous tracking of real-time data.

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