Markets are closed today. Oil is not. Brent crude climbed to $97.57 overnight — up 7.6% for the week and less than three dollars from the $100 mark that hasn't been breached since March. The weekend brought the most dangerous escalation of the Iran war in months. On Friday the U.S. struck three Iranian oil tankers in the Strait of Hormuz — one of them sank. On Saturday Iran retaliated: its navy targeted three tankers on what it called an "unauthorized route" through the Strait and three U.S.-linked vessels elsewhere. Then Iran fired ballistic missiles at two American aircraft carriers patrolling the Gulf. CENTCOM said it turned away 92 vessels from the Strait blockade. Tanker traffic through the chokepoint fell to its lowest level since May. Tehran's chief negotiator said there will be "no more proportionate responses." Iran announced it will impose a "restricted maritime zone" beyond the Strait in the coming days. OPEC+ met Sunday and held October production steady — Danske Bank said the cartel's "ability to steer actual supply and prices remains limited as long as the Iran conflict disrupts Hormuz." Goldman Sachs warned oil could reach $120 under deeper disruption. September hike odds jumped to roughly 60%. The 10-year yield rose to 4.79% on Monday despite equity markets being closed. The S&P closed Friday at 7,718.60 after the jobs report hit 162,000 — three times expectations. Tuesday morning will price all of this at once.
Markets are dark today for Labor Day, so there's no close to report. But oil traded. Brent rose 1.3% to $97.57 overnight. WTI climbed to $92.30. Both benchmarks are at their highest levels since the July ceasefire collapsed. The 10-year Treasury yield edged up to 4.789% even with equity markets closed — the bond market doesn't take holidays. September hike odds have climbed to roughly 60%, up from about 50% before Friday's jobs report.
| The Numbers I Circled | Futures & rates, September 7 · Markets closed |
|
| Brent Oil | $97.57 | +1.3% |
| WTI Oil | $92.30 | +0.9% |
| Gold | $4,440 | −0.8% |
| S&P 500 Sectors | At Friday's close, September 4 |
|
| Info. Technology | | +0.4% |
| Industrials | | +0.2% |
| Utilities | | +0.1% |
| Energy | | −0.1% |
| Financials | | −0.2% |
| Health Care | | −0.4% |
| Consumer Staples | | −0.5% |
| Materials | | −0.6% |
| Comm. Services | | −0.8% |
| Consumer Disc. | | −0.9% |
| Real Estate | | −1.2% |
The real equity close that matters happened Friday: the S&P at 7,718.60, the Dow at 53,414.25, the Nasdaq at 26,506.99 — all down on a jobs report that came in three times above consensus and killed the dovish trade of Wednesday and Thursday. That's the level the market left on. What it opens at on Tuesday will be a different number.
The weekend rewrote the risk map. Friday afternoon — after the equity close — U.S. Central Command struck three Iranian oil tankers in retaliation for ballistic missiles fired at Navy warships in the Gulf. One tanker sank. This was the first time the U.S. deliberately targeted Iran's oil fleet, not just military positions or rocket launchers. The escalation from military targets to commercial oil infrastructure is a line the market hadn't priced.
Iran's response was immediate and broad. The IRGC Navy said it targeted three oil tankers traveling through an "unauthorized route" in the Strait of Hormuz and three vessels "affiliated with" the United States in other areas. Then Iran fired ballistic missiles at two U.S. aircraft carriers — claiming damage to both the carrier and a destroyer. CENTCOM has not confirmed damage. Tehran's chief negotiator said there will be "no more proportionate responses." Iran announced it will introduce a "restricted maritime zone" beyond the Strait of Hormuz in the coming days — a move that would effectively declare sovereignty over one of the world's most critical shipping lanes.
CENTCOM said it has turned away 92 vessels from the Strait blockade and released footage of F-35A stealth patrols over the waterway. Tanker traffic through the Strait fell to its lowest level since May. The UK Maritime Trade Operations kept its Hormuz threat rating at "severe." OPEC+ met Sunday and held October production steady. Saudi Arabia, Russia, Iraq, Kuwait, Kazakhstan, Algeria, and Oman agreed to maintain current output. Danske Bank said OPEC+'s "ability to steer supply and prices remains limited as long as the Iran conflict disrupts flows through the Strait of Hormuz."
What The Market Is Pricing In
The market can't price anything today — it's closed. But oil can. And bonds can. Brent at $97.57 tells you the commodity market is pricing sustained disruption. The 10-year yield at 4.789% tells you the bond market is pricing higher inflation and a September hike. A week ago Brent was at $87. Two weeks ago it was at $82. The trajectory is $5 a week. If that pace holds, Brent crosses $100 before CPI on Wednesday and the entire inflation picture changes overnight.
When two countries start targeting each other's oil tankers — not just military bases, not just rocket launchers, but the ships that carry crude — the conflict enters a different category. In the 1980s, Iran and Iraq fought what historians call the Tanker War. For four years, from 1984 to 1988, both sides attacked commercial shipping in the Persian Gulf. More than 500 vessels were hit. Oil prices stayed elevated for the duration. The U.S. eventually intervened with Operation Earnest Will — escorting Kuwaiti tankers through the war zone under American flags. Today's exchanges look like the opening chapter of the same playbook: state actors targeting commercial vessels, insurance premiums spiking, shipping companies rerouting, and oil prices climbing with every exchange of fire.
Brent is at $97 and the U.S. just sank an Iranian tanker for the first time, and the market — which is closed and can't react until Tuesday morning — will open into a world where oil is $15 higher than it was two weeks ago, the Strait of Hormuz is functionally a war zone, Iran is declaring a restricted maritime zone, September hike odds have climbed to 60%, the 10-year yield is at 4.79%, and the August CPI print on Wednesday will be measured against an oil price that has risen 10% in a single week. Friday's jobs report at 162,000 already put the September hike back on the table. If CPI is hot — and $97 oil makes that more likely — the hike case is locked. If CPI somehow cools despite oil, the market gets breathing room. But the oil price is now the variable that dominates everything: inflation, rates, earnings, consumer spending. When Brent was at $87 last Wednesday, the market was pricing a 50-50 chance of a hike. At $97, with the 10-year yield at 4.79%, the math has tilted decisively.
Goldman Sachs warned over the weekend that oil could reach $120 if Middle East shipping disruptions deepen. That's not a prediction — it's a scenario. But the scenario is getting closer to the base case with every tanker that gets hit. And the gap between where the S&P closed on Friday and where it opens on Tuesday will tell you exactly how much risk the market didn't price over a long weekend.
Three things I'm watching when markets reopen:
01 — Tuesday's open: the gap
The S&P closed Friday at 7,718.60 with Brent at roughly $95. Over the weekend, Brent climbed toward $98 and the U.S. sank an Iranian tanker. Tuesday morning will open with a gap — the difference between where the market left and where it needs to be after absorbing three days of escalation. If the gap is modest — S&P down 0.5% to 1% — the market is treating the tanker war as containable. If the gap is larger — 1.5% or more — the market is pricing sustained disruption and $100 oil.
02 — August CPI: Wednesday September 10
This is now the single most important data point of 2026. Waller said his September vote depends on it. Warsh's "discipline" framework is inflation-first. Friday's 162,000 jobs took the hold off the table. CPI decides whether the hike is the base case. If core CPI is above 3.3% with oil at $97, the Fed has every reason to move on September 17. If it cools — a narrow path given energy prices — Williams' "no clear signs" gets one more life.
03 — ECB rate decision: Thursday September 11
The European Central Bank is expected to raise rates to 2.75% on Thursday. If the ECB hikes the day after U.S. CPI, it adds a second major central bank tightening in the same week — reinforcing the global message that inflation isn't beaten and rates are still going up. A hawkish ECB tone pushes European bond yields higher, which pulls U.S. yields higher in sympathy. The global tightening cycle that the doves tried to slow down last week could accelerate in a single 48-hour stretch.
The S&P closed Friday on a jobs report. It will reopen Tuesday on a tanker war. Between the two sessions: the U.S. sank an Iranian tanker, Iran fired at two carriers, tanker traffic fell to its lowest since May, Brent climbed within $3 of $100, and Iran declared a restricted maritime zone that could shut the Strait to commercial shipping without another missile being fired — because if Lloyd's reprices the war-risk premiums, the insurance market closes the corridor whether the military does or not. CPI on Wednesday measures inflation. Oil at $97 is inflation. The market has 48 hours to absorb a weekend that changed the war. Tuesday morning will tell you if it can.
That's it for today. I'll be back tomorrow after the close.
— Tom Hartley
Today In Perspective · Published daily, Monday–Friday, after the close
This newsletter is for informational purposes only and does not constitute investment advice. The author is not a registered investment advisor. Past performance does not guarantee future results. Consult a qualified financial professional before making investment decisions.
