BTC plunges 1.21% in 15 minutes: A bearish flag pattern forms on technical indicators, combined with pressure from macro policy, triggering short-term selloffs

From 18:00 to 18:15 UTC on June 17, 2026, BTC saw a sharp drop of 1.21% within 15 minutes. The price fell from 66,100.9 USDT to 64,795.8 USDT, with a range of 1.97%. The decline during this period exceeded the full-day drop, and market volatility noticeably increased as selling pressure concentrated and released.

The main drivers behind this move are dual pressures from both technical factors and the macro environment. On the technical side, as of June 16, BTC was still in a “strong bearish” mode and failed to break through the resistance level of the daily cloud chart effectively. A bear flag pattern is forming; if a breakdown of support is confirmed, the theoretical downside target points to $45,000. Meanwhile, on the macro side, expectations of tighter monetary policy by the Federal Reserve continued to strengthen. The U.S. dollar index strengthening puts risk assets under pressure, and capital tends to rotate back into USD-denominated assets.

In addition, ongoing ETF outflows and whales transferring assets to exchanges create a negative feedback loop. Data shows that the exchange whale ratio at a certain major exchange rose to 0.447, the highest level since March 2025. Signs of large holders selling have become evident. Combined with the market memory of concentrated liquidation of leveraged positions earlier, algorithmic sell orders and stop-loss orders were triggered even on minor price declines, further amplifying selling pressure.

In the short term, key support levels at $63,418 and $60,000 should be closely watched for retention or loss. If the daily closing price falls below the $63,418 TBO support level, it may trigger another round of sell-off. The market still holds a large amount of leveraged positions, so the risk of liquidation cascades should be treated with caution. Investors are advised to monitor macro policy developments, ETF fund flows, and on-chain whale behavior, and to trade cautiously.