Bitcoin and Ethereum opened higher on Tuesday, August 18, 2026, but both cryptocurrencies retreated during early U.S. trading as the unresolved U.S.-Iran situation continued to weigh on broader risk sentiment. Bitcoin opened at $64,487.65, up 2.7% from Monday’s opening price, before falling to $64,080.23 by 9:19 a.m. ET, while Ethereum opened at $1,911.89, 2% higher, and slipped to $1,895.37.
Bitcoin Holds Above $64,000 Despite Early Pullback
The early-session retreat showed that the initial recovery in crypto markets remained vulnerable to macroeconomic and geopolitical pressure. Bitcoin’s move from $64,487.65 to $64,080.23 represented a decline of roughly 0.6% from the day’s opening level, although the cryptocurrency remained above the $64,000 threshold that has become an important short-term reference point for traders.
The broader market backdrop was less supportive. Oil prices climbed after negotiations between Washington and Tehran stalled, with Brent crude settling at $90.87 a barrel on Monday and West Texas Intermediate reaching $84.50. Higher energy prices can reinforce inflation concerns and complicate expectations for monetary policy, creating a more challenging environment for risk-sensitive assets such as cryptocurrencies.
Ethereum Follows Bitcoin Lower as Risk Appetite Remains Fragile
Ethereum displayed a similar pattern. The asset opened at $1,911.89, representing a 2% improvement from Monday’s opening price, but had fallen to $1,895.37 by 9:19 a.m. ET. The move illustrates the difference between an opening-price rebound and sustained buying pressure, particularly when macro uncertainty remains elevated.
Recent market commentary also points to a still-cautious recovery in digital assets. Bitcoin had moved back toward $64,000 as investors responded to softer economic data and changing expectations for U.S. monetary policy, but ETF flows and geopolitical uncertainty continued to limit conviction.
Iran Stalemate Keeps Macro Risks in Focus
The crypto market’s reaction is increasingly being shaped by developments outside the digital-asset sector. The unresolved U.S.-Iran situation has pushed oil prices higher and contributed to elevated government bond yields, while investors continue to assess whether geopolitical pressures could prolong inflationary conditions. Reuters reported that markets were pricing roughly a 70% probability of the Federal Reserve holding rates steady in September, following weaker U.S. employment and inflation data.
For crypto investors, this creates a complicated cross-current. Softer U.S. economic data and reduced expectations for additional rate increases can support liquidity-sensitive assets, while higher energy costs, geopolitical uncertainty and elevated yields can encourage investors to reduce exposure to riskier markets. Bitcoin’s ability to remain above $64,000 despite those competing forces therefore provides a useful measure of market resilience, but does not yet establish a durable trend.
Looking ahead, traders are likely to focus on the direction of oil prices, Treasury yields, Federal Reserve expectations and developments in U.S.-Iran negotiations. A further escalation could intensify pressure across global risk assets, while progress toward a diplomatic settlement could improve sentiment and allow the recent crypto recovery to develop more convincingly; until then, the mixed performance of Bitcoin and Ethereum suggests that investors remain selective rather than broadly risk-on.
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