Weekly Markets Report — 7–13 September 2026
The Iran conflict widened rather than cooled this week. After CENTCOM destroyed five more Iranian oil tankers near the Gulf of Oman and Kharg Island on 9 September under the "tanker for tanker" doctrine, Iran retaliated by striking ten ships near the strait and firing roughly 20 ballistic missiles at the US base in Muwaffaq Salti, Jordan — Jordanian air defenses intercepted 18, but a US A-10 was damaged and around 30 Patriot interceptors were fired to break up the attack. Brent crude spiked through $100 and touched roughly $105/bbl intraday, its highest of the conflict. The one offsetting thread is that the temporary Iran-Oman shipping corridor agreed in late August is still holding, with the two sides reportedly negotiating a permanent arrangement and a joint mine-clearing project, though Hormuz traffic remains far below its pre-war norm. On Russia-Ukraine, the capital-strike truce brokered by US envoys Witkoff and Kushner during their Moscow-Kyiv shuttle lapsed on schedule around 8 September — Russia resumed strikes on Kyiv — with only an agreement to resume trilateral US-Russia-Ukraine talks to show for the trip; Moscow rejected a broader air truce and repeated its demand for a Ukrainian withdrawal from the rest of Donbas. On the macro side, August CPI (released 11 Sept) came in hotter than forecast on both headline (+0.4% m/m, 3.4% y/y, gas-driven) and core (+0.3% m/m, beating expectations even as the annual core rate ticked down to 2.4%), compounding a hot August PPI print (+5.4% y/y) from the prior week. That pushed prediction-market odds of a 25bp hike at the Fed's 15-16 September meeting up toward 61-80%, a sharp reversal from "cut" expectations a month ago under new Chair Kevin Warsh's inflation-first stance. The ECB, meeting first on 10 September, delivered its own widely-expected 25bp hike (deposit rate to 2.50%), which Lagarde called "a no brainer," while flagging that the Iran war and Russia-Ukraine spillovers will keep euro-area inflation "well above target" for longer. Equities were volatile and net lower: a sharp Tuesday selloff on the Jordan/tanker escalation (Dow -1.18%) was mostly, not fully, clawed back by a Friday rebound (Dow +0.98%), leaving the week's close below where it started. The Stoxx 50 fell 1.9% on the week despite its own Friday bounce. Apple's "iPhone Duo" launch event (9 Sept) failed to lift the stock, which fell 2.5% that day; Oracle rallied into and through its earnings beat on AI-driven cloud growth, one of the few unambiguous bright spots in an otherwise risk-off week.
02Key levelsweek through 11 Sep 2026 close
Tue 8 Sep low: Dow 52,786 (-1.18%), S&P 7,674 (-0.58%), Nasdaq 26,421 (-0.32%); Fri 11 Sep rebound: Dow +0.98%, S&P +0.86%, Nasdaq +0.96%
03Portfolio implicationsRuben's ETFs: AEX index ETF, EURO STOXX 50 ETF, MSCI World ETF, S&P 500 ETF, High Dividend Yield ETF
- Rate sensitivity is now a hard binary: the Fed's 16 September decision (odds now 61-80% for a hike) is the single biggest near-term catalyst for the unhedged USD sleeve (MSCI World ETF, S&P 500 ETF, High Dividend Yield ETF) — a hike would extend this week's yield-driven pressure on mega-cap tech multiples; a hold would likely trigger the kind of relief rally seen Friday.
- High Dividend Yield ETF's value/financials/energy tilt is the week's standout beneficiary of Brent's push through $100 — the same move that weighs on S&P 500 ETF/MSCI World ETF's growth-heavy composition via inflation and rate expectations.
- AEX index ETF and EURO STOXX 50 ETF (EUR-denominated, no FX effect): the ECB hike is now delivered and priced, but Lagarde's explicit flag of upside inflation risk from the Iran war and Russia-Ukraine spillover leaves the door open to further tightening, a headwind for valuations even as AEX index ETF's Shell/energy exposure benefits directly from firmer oil.
- Geopolitical risk has escalated in a way that now touches US forces directly (the Jordan base strike), not just tanker traffic — a wider regional war remains a live tail risk for oil, European gas costs, and semiconductor supply chains that would hit several holdings simultaneously. The Iran-Oman corridor is the one genuine de-escalation thread worth tracking against that risk.
- Currency: with both the Fed and ECB now in active tightening mode, EUR/USD is more of a two-way bet than in recent weeks — reduced conviction on the "dollar strength = EUR-value tailwind" trade that helped the unhedged sleeve in August.
04Watch next week
- FOMC decision, 16 September — a coin-flip-to-favored hike (61-80% priced); the single biggest swing factor for MSCI World ETF/S&P 500 ETF/High Dividend Yield ETF this month, alongside Warsh's press conference tone and the new dot plot
- Whether the resumed US-Russia-Ukraine trilateral talks produce any actual framework, or the war reverts fully to grinding negotiations with strikes on both capitals continuing
- Iran's next move after the Jordan strike, and whether the conflict widens further to other regional US bases or stays contained to the tanker war; Hormuz transit data and the fate of the Iran-Oman corridor
- Oil's follow-through above $100/bbl and its pass-through to European inflation prints and the ECB's next moves
- Whether Friday's equity rebound extends or the week's net decline (Dow, S&P, Stoxx 50 all lower) marks the start of a deeper repricing into the Fed decision