U.S. and Iranian negotiators reached a 60-day MOU on May 28 that would reopen the Strait of Hormuz. President Trump has not yet signed it. And even a signed deal does not restore oil supply: Pentagon briefings put mine-clearing at up to six months, and Middle East producers need three to four months to restart shut-in capacity.

Brent crude has fallen roughly 20% from its April peak. Most Canadian investors are still anchored to the high. Understanding why is what separates a useful advisor conversation from a useless one.

Oil fell sixteen percent and a war stayed open, yet Canadian equities closed May at record highs. The months data reveals an index that quietly relocated its risk from the oil price to the rate path.

A 60-day ceasefire extension between the U.S. and Iran is taking shape today, with the Strait of Hormuz set to reopen. Trump has not signed. The deal is not done. But the direction of oil prices is already telling Canadian energy investors what to expect if it is.

Wednesday's 0.70% TSX decline was driven almost entirely by a single event: Iranian state media's report of a draft Hormuz MOU that the White House immediately denied. Thursday morning, after the IRGC struck a U.S. airbase overnight, oil is back up 2% and TSX futures are higher. The Dow hit a record close both days.

The IRGC's Thursday morning strike on a U.S. airbase and a ballistic missile launch toward Kuwait are the most serious ceasefire violations since April. For Canadian energy portfolios that sold off Wednesday on deal optimism, the overnight reversal is not a buying signal -- it is a demonstration of the scenario that has been defining this market since March 4.

Tuesday's U.S. strikes in Iran collapsed Monday's peace rally. BMO and Scotiabank beat estimates this morning but the market is opening under a different set of assumptions than it held 24 hours ago.

Monday's peace rally erased Tuesday on fresh U.S. strikes in southern Iran. The market is no longer pricing a near-term resolution. Canadian portfolios need to be read against that new baseline.

Inflation accelerated on energy. Core held just above 2%. The BoC said it would look through the shock. That position is getting harder to maintain as the Hormuz closure drags into its fourth month.

Monday's 1% TSX gain happened without US participation. Tuesday's session -- the first with both markets open since the Iran framework -- will test whether the relief trade holds or overshoots.

Trump's "largely negotiated" deal framework has sent oil prices down more than 10% this week and lifted the TSX. The chain of consequence for Canadian portfolios runs through what the agreement leaves unfinished.

WTI fell toward $91 today as Iran deal proximity reshaped the energy market faster than most May frameworks assumed. The GoC 5-year eased to 3.12%. Canadian bank Q2 earnings begin Tuesday. These three facts, held together, produce a conclusion none of the morning desks could reach individually.

Trump's "largely negotiated" declaration is the third major diplomatic signal since March to send oil lower. Each prior signal reversed. The Strait is still closed. Iran's negotiators are in Doha today still disputing its status. The portfolio implication is not what the headline suggests.

WTI's 5% decline on peace deal headlines shifts the Bank of Canada's June 10 decision framework -- but only if the drop holds. Macklem's April 29 baseline assumed Brent at $90 in Q2. That assumption is now being tested in real time.

The TSX gained 248 points Thursday on ceasefire optimism and easing Treasury yields. Friday morning opens flat as Brent pulls back to $104.52 on the same optimism. The pattern has now repeated three times in six weeks, and the market is pricing resolution that the physical supply data keeps contradicting.

The April 8 U.S.-Iran ceasefire has held in name while intermittent fighting has continued since May 4. The Strait of Hormuz remains effectively closed. Understanding the structure of the talks tells advisors more about the range of outcomes than any single diplomatic headline.