BTC drops 0.59% in 15 minutes: ETF sees its largest outflow of the year combined with institutional selling drives short-term selloff

From 12:00 to 12:15 UTC on June 1, 2026, BTC recorded a -0.59% return within 15 minutes. The price plummeted from 72,602.1 USDT to 71,910.4 USDT, with a 0.95% intraday range. The short-term downside anomaly came alongside continued cooling in market sentiment: the Fear & Greed Index stayed in the fear zone at 29, with a clearly intensifying volatility trend.

The main driver behind this price move was a sharp outflow of ETF funds. In May 2026, BTC spot ETF net outflows totaled $230 million, the largest monthly outflow within the year, reversing the prior two consecutive months of net inflows. Institutional investors were de-risking at a pace faster than the price decline itself; cumulative net inflows fell from $5.809 billion to $5.579 billion, far exceeding market expectations for selling speed.

At the same time, professional investors reduced their positions in tandem, creating a resonance effect. The number of “whale” addresses declined by 6 between May 22 and May 28, equivalent to at least 6,000 BTC being集中抛售, or about $440 million based on prices at the time. Net holdings for long-term holders dropped 7.69% over one week, from 42,301 BTC to 39,049 BTC. With both groups trimming at the same time, selling pressure was amplified. A key technical support level was lost: $73,869 (the 0.236 Fibonacci level) was broken, triggering programmatic sell orders and stop-loss selling, further intensifying the near-term downward move.

In the short term, watch the key support at $70,342; if it breaks, it may trigger further downside of about 4%. ETF fund flows, changes in whale addresses, and macro news will become the core indicators to monitor for subsequent market action.