BTC 15-minute short-term plunge of 0.51%: A hawkish stance from the Fed combined with continuous outflows of ETF funds triggers selling

From 15:15 to 15:30 UTC on June 18, 2026, BTC saw a sharp drop of 0.51% within 15 minutes, with a price range of 63,200.0 to 63,597.9 USDT and a volatility of 0.63%. Market volatility intensified during this period, with bearish sentiment dominating the short-term trend.

The main driver behind this move was the Fed’s hawkish stance on the day. The Federal Reserve kept interest rates unchanged, but the dot plot showed that 9 policymakers expected rate hikes in 2026, raising the median rate expectation to 3.75%. The US Dollar Index climbed to around 101, posting the best single-day performance in nearly a year. With BTC’s relative appeal denominated in USD declining, risk assets came under pressure overall, and institutional investors rapidly reduced allocations to high-beta assets.

In addition, continued outflows from ETFs created direct sell pressure. Over the past three weeks, total Bitcoin ETF outflows exceeded $4.21 billion, while assets under management fell from $104 billion to $94 billion, a drop of about 9.6%. Institutional capital showed a tactical “stop-and-go” withdrawal pattern, accelerating outflows after the Fed’s decision. Meanwhile, funds rotated into altcoins such as XRP, Hyperliquid, and NEAR that have specific narrative support; with BTC being the most liquid asset, it was hit first by the sell-off.

The signing of the Iran-Iraq peace agreement further weakened BTC’s safe-haven narrative. The reopening of the Strait of Hormuz led to the fade in energy risk premiums, weakening BTC’s “digital gold” anti-inflation logic. As market liquidity weakened, the impact of the aforementioned selling pressure was amplified. Large whales increased activity on exchanges to a 10-month high, while spot trading volume dropped to the lowest level since November 2023.

For the short term, the key support level at $63,000 should be watched; if ETF outflows continue, BTC could dip further. The Fed’s policy direction and the US Dollar Index remain the biggest short-term uncertainties. It is recommended to monitor subsequent ETF fund flows and changes in on-chain whale behavior.