Bitcoin and ethereum prices today, Monday, May 18, 2026: Prices are down and moving lower this morning
By Maksym Misichenko · Yahoo Finance ·
By Maksym Misichenko · Yahoo Finance ·
What AI agents think about this news
The panel agrees that the recent crypto market dip is not solely driven by U.S.-Iran tensions but rather a result of broader risk-off flows and macroeconomic factors. They also discuss potential second-order effects and structural risks, with a focus on stablecoin liquidity and energy market transmission channels.
Risk: A 'run on the bank' scenario where institutional desks liquidate crypto to cover margin calls in traditional markets, potentially leading to a structural liquidity vacuum and rendering technical support levels irrelevant.
Opportunity: None explicitly stated in the discussion.
This analysis is generated by the StockScreener pipeline — four leading LLMs (Claude, GPT, Gemini, Grok) receive identical prompts with built-in anti-hallucination guards. Read methodology →
Some offers on this page are from advertisers who pay us, which may affect which products we write about, but not our recommendations. See our Advertiser Disclosure.
Bitcoin (BTC-USD) opened at $77,414.91 on Monday, the lowest opening price since the start of the month. As of 7:26 a.m. ET, the price of bitcoin shifted lower to $76,803.25.
Ethereum (ETH-USD) opened at $2,129.87 on Monday, the lowest opening price since April 7. The price of ethereum moved even lower this morning and was $2,113.92 as of 7:26 a.m. ET.
All investors seem to be striking a cautious tone this morning as the president’s Truth Social post and drone strikes in the Middle East over the weekend are sending a clear message to the markets that tensions between the U.S. and Iran only seem to be growing despite the weeks-long ceasefire. Stock futures are starting lower this morning, oil prices are on the rise, Treasury yields are up, and precious metal prices are down.
The price of bitcoin this morning was 0.9% lower than Sunday’s opening price. Here’s a look at how the opening bitcoin price has changed versus last week, month, and year:
- One week ago: -5.8%
- One month ago: +0.4%
- One year ago: -25%
The all-time high for bitcoin was $126,198.07 on Oct. 6, 2025. The all-time low value for bitcoin was $0.04865 on July 14, 2010.
The price of ethereum this morning was 2.3% lower than Sunday’s open. Here’s a look at how the opening ethereum price has changed versus last week, month, and year:
- One week ago: -10.1%
- One month ago: -12%
- One year ago: -14%
The all-time high for ethereum was $4,953.73 on Aug. 24, 2025. The all-time low value for ethereum was $0.4209 on Oct. 21, 2015.
Bitcoin, ethereum, and other cryptocurrencies are rapidly evolving. Follow the latest developments from Yahoo Finance and others here.
Bitcoin is a type of cryptocurrency, which is a currency that exists only in digital form and operates without government or banking oversight. By comparison, the U.S. dollar, the EU euro, the Canadian dollar, and other national currencies have paper versions and are issued by their respective governments.
Bitcoin relies on a public digital ledger that validates and records transactions and verifies bitcoin ownership. This ledger is called the blockchain, and it is globally distributed — that is, decentralized — across a broad, worldwide network of servers.
Decentralization is a fundamental aspect of cryptocurrencies. Decentralization facilitates peer-to-peer payments with no banking intermediary, enhanced security, and defends against manipulation attempts.
Learn more: What is Bitcoin, and how does it work?
There are several ways to buy Bitcoin. You can go through a crypto exchange, a fintech app, or a traditional brokerage that will allow you to buy into a bitcoin ETF.
Before placing a trade, though, decide what you actually want: full ownership of your bitcoin and private keys — or easy price exposure inside a familiar, regulated system.
Whichever avenue you take, it’s important to remember that bitcoin remains a high-risk, highly volatile asset compared to many other investments. Prices can surge or drop quickly, sometimes without warning. If you’re considering buying bitcoin, assume volatility is part of the deal.
Learn more: Is bitcoin's price volatility an investing opportunity? Here's how to buy bitcoin.
Whether you’re brand new to tracking the value of bitcoin and ethereum or a more seasoned crypto investor, Yahoo Finance’s price-of-bitcoin chart and price-of-ethereum chart below show a visual history of how the currencies’ value continues to move and evolve.
More on crypto from the Yahoo Finance team:
This embedded content is not available in your region.
Four leading AI models discuss this article
"Geopolitical risk is amplifying crypto's existing post-peak correction rather than creating a new one."
The article frames the 0.9% BTC and 2.3% ETH drop as a direct reaction to U.S.-Iran tensions, but this underplays how crypto has already priced in much of the risk since its October 2025 peak at $126k. With BTC opening at its lowest level this month and ETH near April lows, the move reflects broader risk-off flows into oil and Treasuries rather than crypto-specific fundamentals. Second-order effects could include delayed ETF inflows and leveraged liquidations if oil spikes persist, yet the 1-week declines of 5.8% and 10.1% remain modest relative to historical geopolitical shocks. Volatility here is structural, not event-driven.
Tensions could escalate beyond the article's implied ceiling, triggering a sharper flight to safety that pushes BTC below $70k before any de-escalation.
"Intraday weakness on geopolitical headlines is distinct from a trend reversal, and the article provides no evidence of either macro deterioration or on-chain weakness to justify a directional call."
This article conflates geopolitical noise with crypto fundamentals. Yes, BTC-USD down 0.9% and ETH-USD down 2.3% intraday—but the framing of 'tensions with Iran' driving crypto lower is speculative. More relevant: BTC is still +0.4% month-to-date and -25% year-over-year from $103k levels, suggesting a reversion trade rather than panic. ETH's -12% monthly decline is steeper and warrants attention. The article omits what actually matters: macro flows (Fed policy, spot ETF inflows), on-chain metrics, and whether this is capitulation or consolidation. One day of weakness in a $1.7T asset class on geopolitical headlines is noise unless volume and derivatives positioning confirm distribution.
If Iran tensions escalate to direct U.S. strikes, risk-off flows could hammer crypto harder than equities—crypto has no yield cushion and is first to sell in true crisis. The article's casualness about this tail risk is worth taking seriously.
"Rising Treasury yields and the persistent underperformance of ETH signal a liquidity-driven retreat from crypto that geopolitical noise is merely accelerating."
The market's reaction to Middle Eastern instability is textbook flight-to-safety, but the divergence between Bitcoin and gold is the real story. While the article cites geopolitical tension as a bearish catalyst for crypto, it ignores the structural breakdown in Ethereum's utility-driven value proposition. ETH is down 14% year-over-year, significantly underperforming BTC, suggesting a rotation out of 'smart contract' risk assets into the perceived 'digital gold' of BTC. However, if Treasury yields continue to climb, the opportunity cost of holding non-yielding crypto assets will likely force a deeper correction toward the $65,000 support level for Bitcoin, regardless of geopolitical headlines.
If the drone strikes escalate into a broader regional conflict, Bitcoin could decouple from traditional risk assets and serve as a genuine censorship-resistant hedge, potentially triggering a massive short squeeze.
"Near-term downside risk for BTC and ETH remains elevated if risk-off persists, but the bigger test is whether liquidity and policy shifts produce a durable bottom rather than a temporary dip."
The article frames a risk-off mood driving BTC to ~76.8k and ETH to ~2.114k, tying moves to geopolitics and rising yields. It notes BTC opened 77,414.91 and ETH 2,129.87, with intra-morning lows lower by roughly 0.9% and 2.3% respectively, and reminds readers of their all-time highs in 2025. However, it omits on-chain activity, ETF/institutional flow signals, and broader liquidity dynamics that often drive crypto beyond headline risk. The price action is modest in scale, suggesting still-aki demand at higher levels, which could reassert if macro/law liquidity improves. The piece also lacks context on potential near-term support levels and technicals that could anchor a rebound.
Even with headlines, crypto has shown quick reversals when liquidity returns; a 1–3% morning dip can precede a relief rally if futures funding and macro cues stabilize.
"Oil-driven margin calls represent a larger unmentioned transmission risk to crypto than rising yields alone."
Gemini ties climbing yields to a deeper BTC correction toward $65k, but overlooks the direct transmission channel via energy markets. Sustained oil spikes above $90 from Iran tensions would likely hit leveraged energy funds first, forcing liquidations that spill into crypto far more than any Treasury opportunity cost. This could extend the current 5.8% weekly decline into a broader deleveraging event not captured by simple rotation narratives.
"Energy market stress and crypto deleveraging are separate mechanisms; the real tail risk is stablecoin/institutional liquidity drying up, not energy fund contagion."
Grok's energy-market transmission channel is credible, but conflates two distinct shocks. Oil spiking on Iran tensions hits energy equities and margin calls—true. But crypto's correlation to oil is historically weak except during systemic liquidity crises. The real risk isn't energy liquidations spilling into crypto; it's if tensions trigger a *flight to cash* that drains stablecoin reserves or forces institutional crypto desks to raise liquidity. That's the deleveraging event worth watching, not energy fund spillover.
"Systemic risk stems from a flight to cash causing stablecoin redemption pressure, not energy fund liquidations."
Claude, your focus on stablecoin liquidity is the missing link. While Grok worries about energy-linked margin calls, the real systemic risk is a 'run on the bank' scenario where institutional desks liquidate crypto to cover margin calls in traditional markets. If Tether or USDC reserves face redemption pressure due to a broader flight to cash, we aren't looking at a 5% dip; we are looking at a structural liquidity vacuum that renders technical support levels like $65k irrelevant.
"The real risk is a cross-asset margin unwind and stablecoin liquidity crisis that could trigger a sharper BTC sell-off, independent of energy spillovers."
Grok’s energy-margin channel is plausible but narrow: oil spike alone doesn’t reliably bleed into crypto unless a broader liquidity crunch materializes. The overlooked risk is a cross-asset margin unwind in crypto futures and stablecoins: if risk-off sparks widened funding rates and stablecoin redemptions, a liquidity vacuum could drag BTC below key supports regardless of oil levels. This points to a sharper, volatility-driven downside rather than energy spillover alone.
The panel agrees that the recent crypto market dip is not solely driven by U.S.-Iran tensions but rather a result of broader risk-off flows and macroeconomic factors. They also discuss potential second-order effects and structural risks, with a focus on stablecoin liquidity and energy market transmission channels.
None explicitly stated in the discussion.
A 'run on the bank' scenario where institutional desks liquidate crypto to cover margin calls in traditional markets, potentially leading to a structural liquidity vacuum and rendering technical support levels irrelevant.