BTC drops 0.5% in 15 minutes: the escalation of the US–Iran conflict, combined with hotter rate-hike expectations, is weighing on the short term

From 08:30 to 08:45 (UTC) on July 20, 2026, the BTC 15-minute candlestick returned -0.50%, with a price range of 63,733.8–64,282.1 USDT and an amplitude of 0.85%. BTC fell about 0.69% over the past 24 hours, dropping from $65,106 to around $64,246. As geopolitical risk heats up, short-term volatility has increased, but the overall decline remains relatively mild, and market participation is low.

The main driver behind this unusual move is the continued escalation of the military conflict between the US and Iran. For the ninth consecutive night, the US carried out military strikes against Iran. Iran warned it would block the Strait of Hormuz. Brent crude broke above $90 per barrel, sharply increasing geopolitical uncertainty. Risk assets were broadly pressured, and BTC, as a risk asset, pulled back in sync.

Second, expectations that the Fed will hike rates further weighed on the coin price. Cleveland Fed Chair Hammack called for a rate hike in July. Market pricing shows the probability of a hike in December rising from 73% to 82%. As interest rates move higher, the opportunity cost of holding non-yielding assets increases. Gold also fell 0.4% to around $4,000, with BTC moving in the same direction. In addition, order book data shows selling pressure is dominant (buy/sell depth ratio of 0.25): total sell orders of 2.13 BTC versus total buy orders of 0.54 BTC. Near-term sell pressure is concentrated, but trading volume over the last four hours was only 486 BTC, suggesting limited market participation. The selloff appears to be more about passive position reduction amplified by thin liquidity than panic selling.

Current market volatility risk remains. Watch whether the US-Iran conflict escalates further or shows signs of ceasefire negotiations, the Fed’s actual actions at its July meeting, and shipping conditions through the Strait of Hormuz. The key support to watch is $63,769, and the resistance level is $65,107. If oil prices break above $100, the inflation narrative will further suppress BTC.