Every missile Iran fired at US forces overnight was shot down, a familiar outcome after five months of war. What changed was Saudi Arabia joining US strikes in Iraq, a shift from broker to combatant with a direct mechanism into Canadian energy portfolios.

Houthi forces claimed a strike on Saudi Arabia's East-West Pipeline, the route built to move crude around the Strait of Hormuz entirely, the same day Oman proposed a formal Hormuz shipping mechanism. The base case still points to de-escalation, but the tail risk just moved to different infrastructure.

Houthi missiles struck two Aramco refining complexes Saturday, widening a war that had mostly stayed confined to Iran and its immediate coastline. Markets are pricing a different signal instead: a quiet pause between the United States and Iran that touches a far larger share of global oil supply.

Two Saudi tankers struck in the Red Sea push Brent past $100 for the first time since May. The muted reaction across the TSX and gold suggests markets still treat this as tail risk, not the base case.

Bab el-Mandeb traffic carrying Saudi crude surged more than tenfold this year as producers routed around Strait of Hormuz risk. A new Houthi blockade threat is closing that alternative just as Iran escalates attacks on the original chokepoint.

Three new Section 338 proclamations put a 50 percent tariff on Canadian dairy, alcohol, and select vehicle categories starting August 19, but the sectors the U.S. chose not to touch say more about where this goes next.

Yemen's Houthis have declared a maritime embargo against Saudi Arabia, threatening the Red Sea export route Riyadh has used to offset the Strait of Hormuz disruption, even as markets show their first real mediation signal in over a week.

The alleged U.S. strike on Iran's under-construction Darkhovin nuclear facility is a different category of target than anything hit in the previous five months of this conflict, and the IAEA's finding, not Monday's oil price, is the variable that tells Canadian portfolios which of two paths this war takes next.

Iran has told Yemen's Houthi allies to prepare to close the Bab el-Mandeb Strait if the US strikes Iranian power infrastructure. The specific target that matters is Saudi Arabia's Red Sea export route, the bypass pipeline that has been the main reason oil prices have not reached crisis-level highs since the Strait of Hormuz effectively shut.

Iran's Kharg Island handles 90 per cent of the country's crude exports, and this week's renewed threat to strike its oil infrastructure directly would mark a shift from transit risk to production risk, with far less strategic reserve cushion than March's disruption.

For four months, Iran's leverage was a shipping lane. Wednesday's threat to halt energy exports from the entire region, paired with a strike that hit actual production infrastructure, changes the mechanism connecting this war to Canadian portfolios, even though the base case has not changed yet.

The naval blockade taking effect this afternoon targets Iranian ports specifically, but the mechanism that could sustain a lasting risk premium is Washington's 20% toll demand on the shipping Canada never sends through the strait in the first place.

A fourth wave of US strikes and Iran's retaliation against Bahrain, Kuwait, and Jordan pushed Brent above 79 dollars Monday. Whether this is the escalation that finally sustains a Hormuz disruption or another cycle the market fades within weeks depends on data the headlines are not capturing.

Iran's strikes reached Qatar and Jordan for the first time this week, yet WTI eased for a second straight day. Why the actual tail risk for Canadian energy exposure is not the headline count of countries involved, but a genuine halt in Hormuz shipping.

Twelve major asset classes moved on Wednesday, and the direction split cleanly along exposure to the conflict. Professional analysts call it a downgrade in confidence, not a resolved crisis.

A sanctions snapback that one specialist says may end the US-Iran agreement has already added more than $5 to WTI, and the Canadian portfolio question is whether this is a contained escalation or the start of the truce's collapse.