Table of Contents

Market Context
What Happened
Why It Matters
Sector Breakdown
Risks to Watch
What to Watch Next
Final Outlook

Market Context

The S&P/TSX Composite entered this week having closed Friday at 35,305.31, comfortably within reach of its 52-week high near 35,630, on the back of a strong June jobs report. Monday delivered a reminder that the index’s underlying strength can still be tested quickly, as a major escalation in the U.S.-Iran conflict sent oil prices soaring and pulled the broader market lower, even as Canada’s energy sector benefited directly.

What Happened

The TSX Composite closed Monday at 35,252.72, down 52.59 points or 0.15%, in what several market commentators described as its weakest session in roughly a month. The decline came despite the energy sector rising just over 3% on the day, illustrating that the index’s broader composition, weighted heavily toward financials and materials alongside energy, meant losses elsewhere offset the commodity-driven strength. The catalyst was President Trump’s announcement that the U.S. is reinstating a blockade on Iranian shipping through the Strait of Hormuz, which sent West Texas Intermediate up 9.4% to top $78 a barrel and Brent crude up 9.6% to above $83. U.S. markets fell more sharply, with the S&P 500 down 0.79% to 7,515.34, the Nasdaq Composite down 1.55% to 25,873.18, and the Dow Jones Industrial Average down 0.26% to 52,498.64, with technology and chip stocks, including Micron, leading the declines. Bond yields rose in tandem, with the U.S. 10-year note reaching 4.62% and Canada’s five-year yield climbing to 3.190%, its highest level since May.

Also Read: Best long term Canadian stocks

Why It Matters

The TSX’s sector composition provided a partial cushion Monday, but not a full one. Canada’s heavy energy weighting meant the index fell less than its U.S. counterparts, but materials and financials weakness was enough to push the broader index into negative territory despite a genuinely strong day for energy stocks specifically.

This week’s calendar could determine whether Monday’s moves extend or reverse. With U.S. CPI data due this morning, Fed Chair Kevin Warsh testifying before Congress today and again Wednesday, the Bank of Canada’s own rate decision also landing this week, and major U.S. banks kicking off second-quarter earnings season today, investors face an unusually dense stretch of potential catalysts.

Sector Breakdown

Energy was Monday’s standout performer, rising just over 3% as producers and infrastructure names alike benefited from the sharp jump in crude prices. Financials and materials both weighed on the broader index, a divergence that highlights how differently various parts of the TSX are responding to the same underlying story: rising yields tend to pressure materials and ratesensitive names even as they can support certain financial names depending on their specific exposure. Technology names with global AI and semiconductor exposure are likely to see continued spillover pressure from Monday’s sharp U.S. chip stock declines, even where their own fundamentals haven’t changed.

Risks to Watch

The most immediate risk is further escalation in the Strait of Hormuz situation, which could extend both the oil price spike and the accompanying volatility across equity markets. A hotter-than-expected CPI print today, against a consensus forecast for a modest monthly decline but a still-elevated annual rate near 3.9%, could add further pressure on bond yields and equity valuations. The density of this week’s catalysts, from Warsh’s testimony to the Bank of Canada decision to bank earnings, raises the odds of a surprise moving markets sharply in either direction.

What to Watch Next

Investors should watch today’s CPI release and Warsh’s testimony closely, both scheduled for this morning, alongside the start of major U.S. bank earnings. Wednesday’s Bank of Canada rate decision is the week’s most significant domestic catalyst, particularly given how much Canadian bond yields have already moved. Continued developments in the Strait of Hormuz situation will remain the key swing factor underlying all of this week’s other data points.

Also Read: Safe investments for new investors

Final Outlook

The TSX’s modest Monday decline, cushioned by energy sector strength but not fully offset by it, sets up a genuinely consequential week ahead, with inflation data, central bank testimony, and a rate decision all landing in quick succession. Investors should expect continued volatility rather than a clear directional resolution until more of this week’s catalysts have played out.