Five sessions. A blockade, a walkback, a handshake in Islamabad, an earnings parade, and finally on Friday, a single sentence out of Tehran that took 11% off crude and put the S&P into the 7,000 era for the first time. Here is every leg of the move.
When Iran's foreign minister posted on X at 9:41 a.m. ET Friday that the Strait of Hormuz was "completely open" for commercial vessels during the Israel–Lebanon ceasefire, he ended — or at least paused — the most violent oil shock since 2022 in the span of a single trading session. WTI crude, which had been knocking on $95 Thursday and flirted with $105 at Monday's open, collapsed 11.4% to settle at $83.85. The S&P 500, which entered the week still licking wounds from February's sell-off, closed at 7,126.06 — a fresh record high, a 4.5% weekly gain, and the first close above 7,000 in its history.
The week did not begin kindly. It began with a Pentagon press pool, a map of the Persian Gulf, and the unambiguous verb "blockade." By Wednesday, the story had already pivoted. By Friday, the story had inverted. What follows is the full sequence, session by session.
"In line with the ceasefire in Lebanon, the passage for all commercial vessels through Strait of Hormuz is declared completely open for the remaining period of ceasefire."
— Seyed Abbas Araghchi · Iranian Foreign Minister · April 17, 2026Friday's rally was not uniform. The composition of the move matters as much as the magnitude, because it tells you what got de-risked and what did not. The winners were, in order: small caps, cyclicals, rate-sensitive growth, and then — improbably — the things that had been winning before. The losers were energy longs and inflation hedges.
| Asset | Apr 10 Close | Apr 17 Close | Weekly Δ | Driver |
|---|---|---|---|---|
| S&P 500 | 6,820 | 7,126.06 | +4.5% | Hormuz de-risking · earnings beats |
| Nasdaq Composite | 22,910 | 24,468.48 | +6.8% | AI names recover · 10-day win streak |
| Russell 2000 | 2,719 | 2,776.90 | +2.1% | Small-cap rate relief |
| WTI Crude | $94.40 | $83.85 | −11.2% | Strait reopened to vessels |
| Brent Crude | $98.20 | $90.38 | −8.0% | Freight / insurance premia compress |
| 10-Yr Treasury | 4.31% | 4.26% | −5 bps | Inflation risk re-rating |
| Gold (spot) | $4,810 | $4,849 | +0.8% | Dollar soft, central-bank bid persists |
| Bitcoin | $74,200 | $77,190 | +4.0% | Risk-on; dollar dip |
| VIX | 19.8 | 17.48 | −11.7% | Geopolitical vol decay |
Crude's 11% single-day move is rare outside recessions or OPEC shocks. Friday's had a specific plumbing story: ING estimated that roughly 13 million barrels per day of supply had been effectively disrupted under the blockade-plus-Strait-closure regime. The Araghchi statement did not suddenly produce new barrels — it reopened the logistics for barrels already sitting in the Gulf. Freight rates and insurance premia around Hormuz, which had blown out over March and April, came in immediately. Wholesale gasoline (RBOB) fell 5% on Friday. Heating oil — a proxy for jet fuel and part of the diesel complex — dropped 10%. The CPI passthrough is now deflationary relative to where futures curves were pricing on Monday.
The 10-year fell to 4.26%. That is a five-basis-point weekly move and the lowest print since March 18. It was not driven by Fed pricing — rate-cut odds barely budged on the week. It was driven by the inflation leg of the yield decomposition: if Hormuz stays open, the oil-pass-through spike dies, realized CPI in Q2 eases, and term-premium on long-dated Treasuries compresses. The 30-year fell to 4.88%. The 2-year was roughly unchanged at 3.71%. That's a curve that is telling you the shock was priced in inflation expectations, not in growth expectations.
Russell 2000 +2.1% Friday, finishing a third consecutive week higher, is the more important signal than the S&P record. Small caps are the most levered to (a) domestic demand, (b) short-end rates, and (c) energy input costs. When small caps lead a de-risking rally, it means the market is pricing in sustained relief rather than a short-cover. That said, the Russell is still well below 2024 highs, and a single week's leadership doesn't undo the damage of the February–March drawdown.
The operative word in Araghchi's post was "coordinated route." Vessels must transit Hormuz on a path "already announced by Ports and Maritime Organisation of the Islamic Rep." Translation: Iran retains the ability to reroute, delay, or inspect traffic, and the "open" status is explicitly tied to the remaining period of the Israel–Lebanon ceasefire — a ceasefire with a stated 10-day window. President Trump's own Truth Social response thanked Iran and clarified the U.S. naval blockade of Iranian ports "will remain in full force" until a comprehensive agreement.
So the de-escalation is real, but it is conditional and finite. Three tripwires worth watching over the next two weeks:
1. Ceasefire expiry. If the 10-day Lebanon window lapses without extension or upgrade to a framework agreement, the "open" designation can be rescinded as quickly as it was issued. The binary risk is live through the end of April.
2. Blockade mechanics. Iran's oil exports through Hormuz have been tracking around 1.7 million bpd. If the U.S. Navy is physically preventing Iranian vessels from departing while simultaneously allowing third-country tankers to transit, the arrangement is an unstable equilibrium that Iran has historically not tolerated for long.
3. Earnings guidance through the rest of April. This week's bank prints were clean. But Delta Air Lines already warned it would "meaningfully reduce" capacity growth on jet fuel costs. If the Q1 calls from transport, airlines, autos, and consumer discretionary show the March oil spike eating into guidance for Q2 and Q3, the current valuation re-rating looks stretched quickly.
A 4.5% week for the S&P is not a routine week. The last time it happened was May 2025. The difference this time: the catalyst was a foreign minister's social media post, not an earnings surprise or a Fed pivot. Markets that rip on geopolitical sentences can give it all back on the next sentence. The fundamentals did improve — oil came down, yields came down, earnings were strong — but the speed of the repricing suggests positioning was more washed-out than investors had been willing to admit heading in.
The FOMC meets April 28–29. Rate-cut probabilities remained roughly one-in-three for December as of mid-week; Friday's oil crash may nudge that up slightly, but not dramatically — the Fed's 2026 framework has consistently signaled that geopolitical supply shocks get "looked through." The next earnings test is Tesla, Alphabet, Microsoft, and Meta over the coming ten days. And the Strait of Hormuz will remain the single most watched piece of geography in the global economy until there is a framework deal in writing, not a Truth Social post.
On Sunday, Arshia's Macro Note will take apart the re-rating in long-dated yields and what the 10s–2s curve at +55 bps is actually saying about 2027 growth. For Monday, I'll hand the baton back to James with the week-ahead Outlook.
Seven thousand is a number. Holding it is a process.