The TSX Just Hit a Record. Look Closely and It's an Oil Record.

Canada's benchmark closed at a fresh record near 36,458 on 10 August 2026, building on the previous Friday's record close of 36,381. The index is up roughly 3.5% over the past month and more than 30% year over year.

Canadian investors have spent a decade being told their market is a underperforming backwater relative to the S&P 500. This year it is not. But the reason it is not deserves more scrutiny than it is getting.

What is actually driving it

The record closes have come on days when energy and materials led. Crude rallied through early August as uncertainty grew over whether the US and Iran would reach a deal to reopen the Strait of Hormuz. Brent for October delivery was around $84.42 on 10 August.

Meanwhile the miners are having an extraordinary year. Gold was near $4,342 an ounce in early August after touching a seven-week high, and Barrick's Q2 realized gold price of $4,417 an ounce was up 34% year over year. Financials have been strong too — TD, BMO, CIBC and Scotiabank all traded up about 1% on 11 August, with Brookfield gaining more than 2%.

Strip those three sectors out and the "Canadian market at a record high" story gets a lot thinner.

The macro backdrop is more hawkish than most people realise

The Bank of Canada has held its policy rate at 2.25% — as of its most recent decision that marked a sixth consecutive meeting without a change, with the Bank noting that after a year of weakness the economy is showing signs of improvement while uncertainty remains high.

Then July's jobs report landed: employment rose 75,100 and the unemployment rate fell to 6.4%. That is a genuinely strong print, and it pushed expectations toward a more hawkish Bank of Canada — at the same moment the US payroll report showed a surprise loss of 23,000 jobs and pushed the Fed the other way.

A hawkish BoC and a dovish Fed is a specific configuration with specific consequences: it supports the Canadian dollar, which quietly reduces the CAD return on your unhedged US holdings. If you hold VFV or XUU and you've noticed your returns lagging the S&P 500's headline number, currency is where that gap is going.

The concentration problem nobody wants to name

We have written before about how the top 10 stocks in the S&P 500 now make up about 40% of the index. Canadian investors read that article and feel diversified by comparison.

They shouldn't. The S&P/TSX Composite tracks around 230 companies, but its sector weighting is dominated by financials, energy and materials. When those three move together — as they have all summer, because higher oil supports energy and higher rates support bank margins and geopolitical stress supports gold — the index behaves like a single concentrated bet on commodity prices and Canadian credit conditions.

That has been a wonderful bet in 2026. It is still a bet.

The specific risk

Here is the uncomfortable version: a meaningful share of the TSX's record run is priced off a closed Strait of Hormuz.

If negotiations succeed and the strait reopens in an orderly way, oil falls. Energy earnings compress. The commodity-linked portion of the index de-rates — possibly quickly, because the move up was fast. That is not a prediction. It is just an honest description of what you own if you own a TSX index fund right now.

What to actually do about it

Nothing dramatic. Three things worth checking:

Look at your real sector weights. Not the fund name — the actual sector breakdown in the fact sheet. If financials plus energy plus materials is most of your Canadian sleeve, you know where your risk is.

Don't confuse a commodity cycle with a stock-picking win. If your Canadian holdings are up a lot this year, the honest attribution is mostly "oil and gold went up," not "I chose well." That matters because it tells you what would have to happen for the gains to reverse.

Resist adding at the top. The temptation after a 30% year is to increase the allocation that just worked. That is precisely backwards. If anything, a record high is when rebalancing back to your target weight does the most good.

Our Canadian dividend ETF comparison walks through the sector composition of the most common Canadian income funds — useful if you want to see exactly how much energy and financials exposure you're carrying.