WTI crude settled near $70.30 a barrel Monday, down about 19% for June and on pace for its worst quarterly performance since the first quarter of 2020, a roughly 24% to 30% decline depending on the measurement window. That price level matches where WTI traded on February 27, the day before the US and Israel launched the war that shut the Strait of Hormuz. Four months of conflict, and crude is back where it started.

The TSX, meanwhile, closed Monday at 34,824, down a modest 0.4% but still within 180 points of the all-time closing high of 35,002 set June 22. The composite's resilience through an oil collapse this severe is the story. It is not resilience across the board. It is concentration in exactly the sectors that benefit from lower energy-driven inflation expectations, at the direct expense of the sector that has driven most of this year's gains.

Why the Disconnect Between Oil and Hormuz Risk

The mechanism driving WTI lower is straightforward: traders are pricing the ceasefire and the prospect of restored Gulf supply more heavily than the unresolved status of the strait itself. Tanker traffic through Hormuz has picked up materially since the June 17 memorandum, with Kpler reporting at least 20 tankers transiting in a single day last week, the highest level since June 2. That volume recovery is real and is doing the work of pulling crude down toward pre-war levels.

What the price has not fully absorbed is that the underlying dispute over who controls the strait, and whether Iran reimposes fees once the memorandum's 60-day toll-free window expires around August 16, remains open. Renewed clashes over the weekend damaged two vessels before the current truce, and fresh talks are scheduled for this week in Doha. The market is trading the calm, not the calendar.

Canadian Energy Is Absorbing the Hit

Canadian Natural Resources, Suncor, and Cenovus have generated extraordinary free cash flow through 2026 on a WTI range that mostly held between $80 and $100. The energy sector's roughly 27% year-to-date gain through May was the single largest contributor to the TSX's outperformance. A crude price back at $70 changes the math directly: oil sands economics remain profitable at this level given the capital discipline producers have maintained, but the free cash flow that funded this year's buyback expansions, including Suncor's nearly $4 billion 2026 repurchase target, compresses meaningfully if WTI holds in the low $70s rather than the $85 to $95 range that prevailed for most of the conflict.

TSX COMPOSITE: DAILY CLOSE 34,824 ▼ -0.4% DAILY  |  JUN 1 TO JUN 29, 2026
Source: TMX Money, S&P/TSX Composite daily close data, June 29, 2026.  |  hdq.ca

The TSX first crossed 35,000 on June 22 on positive US-Iran peace signals and has traded in a tight 34,700 to 35,100 range since, even as oil fell sharply over the same window. Source: TMX Money, BBN Times market coverage.

Why Banks Are Picking Up the Slack

Royal Bank, TD, and BMO have all gained over the past several sessions as lower oil prices ease the energy-driven inflation pressure that has kept the Bank of Canada cautious. RBC gained 1% and TD and BMO each rose 0.6% in Monday's session specifically on the combination of a holding truce and oil prices easing back toward pre-conflict levels. Lower energy costs reduce one of the two competing pressures the Bank of Canada has been weighing all year, inflation risk versus growth weakness, which is a direct tailwind for rate-sensitive financial stocks even without a change in the policy rate itself.

What This Means Heading Into Wednesday

Quarter-end positioning adds noise to Monday and Tuesday's moves, and the TSX's composition, roughly 70% of total Canadian market capitalization across a relatively small number of large energy and financial names, means a divergence this sharp between the two sectors shows up clearly in the headline index even as it nets out to a modest overall move. The number to watch going forward is not the TSX level itself but whether energy continues to underperform if WTI stabilizes near $70, or whether this week's Doha talks and the prospect of Iran reasserting leverage after August 16 put a floor back under crude before producers' second-quarter results land.