Bitcoin (BTC) declined by up to 2.2% on Monday, October 12, 2026, erasing early-week gains as geopolitical tensions in Eastern Europe and the Middle East intensified market uncertainty. Data from TradingView indicated that BTC/USD reached $84,254 on Bitstamp, its highest level since Wednesday, before retreating. The drop coincided with accusations by Ukrainian President Volodymyr Zelenskyy that Russia continued targeting energy infrastructure, despite a US-announced moratorium on such strikes. Simultaneously, Iran reported an oil tanker ablaze in the Strait of Hormuz.

These events drove crude oil prices sharply higher, with WTI crude surpassing $94 per barrel and Brent crude reaching $107.25, its highest level since September 16. The commodity spike occurred ahead of key US inflation data, specifically the Consumer Price Index (CPI) and Producer Price Index (PPI), scheduled for release on Wednesday and Thursday, respectively. Former Goldman Sachs strategist Robin Brooks noted that while oil volumes out of the Persian Gulf remained around 13 million barrels per day—better than during the height of the war in March and April—the market had priced in "too much risk premium," returning prices to highs.

In the cryptocurrency sector, trading company QCP Capital observed duality in Bitcoin options markets, characterized by defensive positioning alongside traders considering potential upside breakouts. Implied volatility held firm even as spot prices settled back into range, while risk reversals showed a less pronounced premium for puts than usual. Analyst Rekt Capital identified $83,400 as local resistance for Bitcoin on the day.