Day traders who ignore crude because they "only trade NQ" got a reminder this month. The biggest macro driver of index futures in September 2026 was not earnings or the Fed. It was a shipping lane in the Persian Gulf.
What happened
On September 26, 2026, President Trump said he was rejecting Iran's seven-day roadmap to reopen the Strait of Hormuz, calling it not acceptable. According to Al Jazeera and NPR, Iran raised the plan at the UN General Assembly and said it had been passed to Washington via Qatari mediators. It called for the U.S. to release frozen Iranian funds, lift oil sanctions and end its naval blockade of Iranian ports. The Hill headlined its story "Trump rejects Iran's 7-day plan to end war, expects bombing to resume post-midterms." CNN reported Iran said it was still awaiting a "definitive" U.S. response.
When markets reopened, oil jumped. Al Jazeera reported on September 28 that Brent rose more than 3% to top $107 a barrel, nearing $108 in Asian trading.
How September's oil tape moved index futures
- Sept. 7-8: Al Jazeera reported oil surging as U.S.-Iran strikes intensified in Hormuz. CNBC reported oil rising to $99 on a report that Iran had launched a second undisclosed attack on U.S. Navy ships. On September 8, per CNBC's market coverage, the Dow fell 628.18 points (-1.18%) to 52,786.07, the S&P 500 fell 0.58% to 7,673.52 and the Nasdaq slipped 0.32% to 26,421.41, with WTI up for a sixth straight day.
- Sept. 17: Brent settled under $105 and the Nasdaq 100 rallied 1.7% as oil and yields retreated, Bloomberg reported.
- Sept. 24: a fresh oil jump pushed the 30-year Treasury yield to its highest since 2004, per Reuters.
- Sept. 28: gold opened at its lowest level since August 5 and bitcoin lost ground as oil rose after the rejection, according to Yahoo Finance's gold and crypto updates.
Why it matters for NQ and ES
The transmission is simple. Higher oil raises inflation expectations. That pushes up long-dated yields and fed-hike odds, and higher yields compress tech multiples. In September the chain ran in both directions within days. Oil drops produced some of the month's best NQ sessions, and oil spikes produced some of the worst.
For intraday traders, the problem is that the catalysts are unscheduled: a strike report, a leader's remark, a proposal at the UN. They often land outside the regular session, so the risk shows up as gaps.
The controversy
The hawkish case for rejection: Trump said Iran wanted a deal because it is "losing so badly," according to the coverage, and the administration's position is that the proposal's terms (sanctions relief, unfrozen funds, an end to the blockade) are too generous.
The markets case against it: every week the strait stays restricted keeps an energy premium in inflation data, which the Fed is now openly fighting with rate hikes. Seen that way, geopolitics and monetary policy are now working against each other.
Our take: We do not have a view on what the right diplomatic decision is, and it is not our place to. On the market side, we think many retail futures traders are still underweighting crude. In this regime, a sharp overnight oil move can matter more for the NQ open than a mega-cap earnings beat. Traders who are not watching Brent and WTI are missing part of the picture.
What traders can do (general, not advice)
- Add CL or Brent to your NQ/ES layout and note its direction before the open.
- Assume weekends can produce gaps. Headlines on September 26 (a Saturday) moved Monday's open.
- On big oil days, check the 10-year yield before fading a move in NQ.
- Keep size smaller while a single headline can reprice everything.
Key takeaways
- On Sept. 26, 2026 Trump rejected Iran's seven-day plan to reopen the Strait of Hormuz.
- Brent rose more than 3% to top $107 on Sept. 28, per Al Jazeera.
- Oil moves drove several of September's biggest index-futures sessions through their effect on yields and hike odds.
- The war began Feb. 28, 2026, and Hormuz shipping has been sharply curtailed since.
- Our opinion: crude belongs on every NQ trader's screen while this lasts.
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FAQ
What was Iran's seven-day plan?
According to Al Jazeera and NPR, Iran proposed reopening the Strait of Hormuz and ending hostilities within seven days if the U.S. released frozen Iranian funds, lifted oil sanctions and ended its naval blockade of Iranian ports. Trump rejected it on Sept. 26, 2026.
How high did oil go after Trump rejected the plan?
Al Jazeera reported that Brent rose more than 3% to top $107 a barrel on Sept. 28, 2026, nearing $108 in Asian trading.
Why do oil prices move Nasdaq futures?
Higher oil raises inflation expectations, which can push up Treasury yields and the odds of Fed hikes. Higher yields tend to weigh on the valuations of growth stocks that dominate the Nasdaq 100.
Loomi.Ai provides educational market research, not financial advice. Trading futures and options involves substantial risk of loss, and backtested results are historical and do not guarantee future returns.
Sources
- Trump rejects Iran's seven-day roadmap to end war and reopen Hormuz, Al Jazeera
- Trump rejects plan to reopen Strait of Hormuz, NPR
- Trump rejects Iran's 7-day plan to end war, expects bombing to resume post-midterms, The Hill
- Iran says it is awaiting 'definitive' US response despite Trump rejecting latest proposal, CNN
- Oil prices surge after Trump rejects Iran's plan to reopen Strait of Hormuz, Al Jazeera
- Oil prices surge as US-Iran strikes intensify in Strait of Hormuz, Al Jazeera
- Oil rises to $99 on report Iran launched second undisclosed attack on U.S. Navy ships, CNBC
- Stock market news for Sept. 8, 2026, CNBC
- Stock Market Today: Dow, S&P Live Updates for September 17, Bloomberg
- Global Bond Rout Rolls on, Pushing US 30-Year Yield to Highest Since 2004, Reuters via GV Wire
- Gold prices today, Monday, September 28, 2026: Gold prices slump as Iran tensions and oil prices rise, Yahoo Finance
- Bitcoin and ethereum prices today, Monday, September 28, 2026, Yahoo Finance