The short version
- Brent crude hit $100.45 on September 9, its first time above $100 since July 23.
- Bitcoin opened at $78,446 and climbed to roughly $79,742 intraday, a gain of about 1.6%.
- CENTCOM struck five Iranian oil tankers on September 8; Iran fired 20 ballistic missiles at Al Azraq air base in Jordan the next morning.
- Bitcoin's 90-day correlation with gold reached a six-year high in early September 2026, per CoinCorrelation data.
Oil's First $100 Day Since July
On Wednesday, September 9, 2026, Brent crude oil crossed $100 per barrel in early trading — its first time above that level since July 23, according to energy data service Rigzone. The price peaked at $100.45. Oil at $100 matters to everyday life: fuel for trucks, planes, and factories all costs more, and those higher costs ripple through prices on store shelves.
Washington Times and Seeking Alpha independently confirmed the $100 breach the same day. High oil prices tend to squeeze corporate profits, because shipping and manufacturing grow more expensive. When investors expect weaker earnings, stock markets often drop. European equity markets fell on September 9, with the Stoxx Europe 600 index down around 0.5%, according to CoinDesk's market coverage from that session.
Oil had stayed below $100 for nearly seven weeks before this jump. The move happened in early European trading hours, before most US markets had opened. Speed matters in finance: a fast move in a major commodity like crude oil can cause traders around the world to quickly adjust their bets on currencies, bonds, and other assets within minutes.
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What Actually Triggered the Spike
The immediate cause of the oil spike was a military exchange between the US and Iran. On the night of September 8, US Central Command (CENTCOM) destroyed five Iranian crude oil tankers in the Gulf region: the M/T Kaviz, M/T Charminar, M/T Horizon 1, and M/T Riesco in the Gulf of Oman, and the M/T Derya near Iran's Kharg Island. CENTCOM said it acted after the IRGC tried to strike a US warship.
Iran responded the following morning. The Islamic Revolutionary Guard Corps fired 20 ballistic missiles at Al Azraq air base in Jordan, according to a GlobalSecurity.org operational report dated September 9, 2026. Jordan's air defenses intercepted 18 of the 20 missiles. No casualties were reported. The base is used by US and coalition forces, making the strike a direct message aimed at American military presence in the region.
Some news headlines described the day's events simply as occurring after Iran strikes, but that framing leaves out that US forces struck Iranian ships first. Understanding the full sequence matters for making sense of why oil markets reacted so sharply. When two military powers exchange fire near key Persian Gulf shipping lanes, traders worry about supply disruptions, and that fear pushes oil prices higher fast.
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How Bitcoin Moved on September 9
Bitcoin opened September 9 at $78,446 and climbed through the morning, reaching an intraday high of approximately $79,742, according to market data aggregated by CoinDesk. That is a gain of roughly 1.6% from open to peak. You can follow the latest Bitcoin price movements as this story develops. The move came as traditional investors were watching oil prices and pulling money out of equities.
Bitcoin's rise happened while stock markets were falling — the opposite of what you would normally expect if investors were simply selling everything risky. When fear spikes, many traders sell crypto along with stocks. That Bitcoin held up and climbed suggests some buyers saw it as a safe harbor, the same way investors buy gold when they are nervous about geopolitical events or economic instability.
Bitcoin is quoted in US dollars (BTC/USD) on most major exchanges — a different reading from BTC/USDT, which uses the dollar-pegged stablecoin Tether. The two prices usually track closely but can diverge slightly during periods of stress. Checking current market data across multiple sources is the best way to confirm which price you are seeing and whether any spread has opened between them.
| Time / Metric | BTC/USD |
|---|---|
| Session open | $78,446 |
| 7:11 a.m. ET (Yahoo Finance) | $78,824 |
| Intraday high (CoinDesk) | ~$79,742 |
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Bitcoin and Gold Move Together, Leaving Stocks Behind
Bitcoin's behavior on September 9 fits a pattern that has been building for months. By early September 2026, Bitcoin's 90-day correlation with gold had reached a six-year high, according to data from CoinCorrelation, covered by AMBCrypto and KuCoin research. Correlation measures how closely two assets move together on a scale from −1 to +1. A six-year high means Bitcoin and gold have moved in the same direction more than at any point since 2020.
At the same time, Bitcoin's correlation with the S&P 500 — the US stock market index tracking 500 large companies — fell sharply. Gold rose about 1.06% and silver about 1.33% on September 9, moving in the same direction as Bitcoin. Nasdaq futures, which reflect where tech stocks are expected to open, were little changed that morning, while Bitcoin climbed.
This shift in behavior could matter for how investors think about Bitcoin as part of a broader portfolio. Gold is traditionally seen as a store of value — something people buy when they distrust paper money or fear geopolitical chaos. If Bitcoin reliably behaves like gold during crises, that changes how Bitcoin's macro behavior is discussed. But one session is not a permanent shift; the pattern needs to hold across many more events.
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Why $100 Oil and $79,700 Bitcoin Happened the Same Day
The connection between $100 oil and Bitcoin's climb to near $79,700 is not mechanical — there is no direct switch that links the two. What the data shows is that on September 9, 2026, when Brent crossed $100, equities fell and Bitcoin rose. The simplest explanation is that both moves reflect the same underlying fear: investors worried that the US-Iran exchange could disrupt global trade and trigger broader conflict.
Fear-driven markets often move in ways that look surprising at first. When investors pull money out of stocks, they have to put it somewhere. Some goes into bonds, some into gold, and increasingly some goes into Bitcoin. The Bitcoin volatility data on this day was relatively contained — a 1.6% intraday gain is not unusual for Bitcoin — which itself suggests the market was buying calmly rather than speculating wildly.
The events of September 9 show Bitcoin responding to a real-world geopolitical shock in roughly the same direction as gold and oil: upward in price when fear of supply disruption runs high. Whether that pattern continues depends on how the US-Iran situation develops and how traditional investors keep categorizing Bitcoin. For now, the data is clear: when Brent topped $100 on September 9, Bitcoin was near $79,700.