BTC drops sharply 0.48% in 15 minutes: Escalation in the Iran–Iraq conflict triggers a short-term sell-off

From 13:45 to 14:00 (UTC) on July 20, 2026, BTC fell 0.48% on the 15-minute candlestick timeframe, with a price range of 64,209.4–64,760.9 USDT and an Ampl of 0.85%. Market volatility intensified, and the Filled Amount was low, indicating that short-term funds’ risk-avoidance sentiment is heating up.

The main drivers behind this abnormal move are the ongoing escalation of the U.S.-Iran military conflict. For the ninth consecutive night, the U.S. military carried out airstrikes in Iran. Iran threatened to block the Strait of Hormuz and announced it had entered a “full war” status, sharply increasing geopolitical risk. Oil prices broke above the $90 per barrel level the same day; Brent crude rose 3.8% on the day, pulling risk-hedging funds out of risk assets.

In addition, expectations of Fed rate hikes added further pressure on BTC. The target range for the federal funds rate is 3.50%–3.75%, and the market is pricing an 82% probability of a rate hike in December. Expectations for tighter macro liquidity limited the performance of risk assets. Although BTC is seen as “digital gold” and received support from the risk-hedging narrative, a stronger DXY partially hedged away its risk-hedging demand, resulting in a relatively mild decline.

Order Book data shows the bid-to-ask depth ratio is 7.03, with bids significantly outweighing asks. At $64,956.5, there is a large buy wall of 0.3622 BTC, providing relatively strong downside support in the short term. However, the Filled Amount was low (148.48 BTC), and market participation was limited; the risk of continued volatility remains. It is recommended to monitor whether the U.S.-Iran conflict escalates further, how the $64,167 and $63,734 support levels hold up, and spot ETF fund flows.