Tariffs Paused, Chips Punished: Markets Wobble on a Wild Wednesday

 

Wednesday, August 19, 2026

Canada woke up to the trade news everyone was waiting for — and it wasn't the one everyone feared. President Trump paused the 50% tariff on Canadian goods just hours before the midnight deadline, citing a "deal" that's still being finalized on paper. But the relief rally that might normally follow got swamped by an entirely different story: a brutal global selloff in semiconductor stocks that's hitting Asian markets hard this morning and kept Wall Street in the red on Tuesday. Here's where things stand as North American markets open.

The Big Story: Tariff Deadline Blinks

Late Tuesday night — less than two hours before the 50% tariff on roughly $20 billion of Canadian goods was set to kick in — Trump posted on Truth Social that he was pausing the tariffs for three days, "based on the fact that Canada and the U.S.A., subject to the finalization of documents, have a DEAL!" Prime Minister Mark Carney confirmed the pause runs until the end of Friday, August 21, but was careful not to declare victory: "Substantial progress has been made, although there is important work still to be done."

No details of the actual agreement have been released. Trump's post referenced the long-dormant Keystone XL pipeline potentially being "awoken from the grave," and U.S. Trade Representative Jamieson Greer said the deal would include "comprehensive market access for all American goods" — language that suggests Canada gave ground on autos, dairy, or alcohol, the three sectors originally targeted. The Canadian Chamber of Commerce called it relief without certainty: "This limbo state is not anyone's preferred outcome."

Market reaction so far has been muted rather than euphoric. The loonie firmed modestly and TSX futures ticked up, but currency strategists note the Canadian dollar was already strengthening this month on strong jobs and hotter inflation data — so it's hard to credit the tariff pause alone for a rally that hasn't really shown up yet.

TSX: Tuesday's Tariff-Jitters Selloff

Before last night's pause, the S&P/TSX Composite fell hard on Tuesday as the deadline loomed, dropping 299.99 points (-0.82%) to 36,367.93 — its worst session in weeks. The big Canadian banks led the way down as global bond yields hit multi-decade highs: RBC fell 1.3%, TD Bank 1.7%, BMO 1.2%, CIBC 1.3%, and Scotiabank 1.1%. Miners slid too as gold retreated, with Agnico Eagle, Barrick, and Wheaton Precious Metals all in the red. Tech names tracked the U.S. chip rout, with Shopify down 1.2% and Celestica sinking 8.4%. Energy was the lone bright spot, with Canadian Natural Resources and Suncor both gaining as oil climbed.

Index	Close (Tue, Aug 18)	Change
S&P/TSX Composite	36,367.93	-299.99 (-0.82%)

Wall Street: Chipmakers Take the Hit

U.S. markets fell for a third straight session Tuesday as a sharp pullback in semiconductor stocks dragged the broader market lower, compounded by elevated bond yields and rising oil prices. The Philadelphia Semiconductor Index plunged roughly 5%, with Western Digital down 7%, Sandisk down 9%, and Marvell and Seagate both off nearly 8-9%. The 30-year Treasury yield hit its highest level since 2007.

Index	Close (Tue, Aug 18)	Change
Dow Jones Industrial Average	53,343.40	-116.38 (-0.22%)
S&P 500	7,691.76	-53.30 (-0.69%)
Nasdaq Composite	26,289.71	-355.20 (-1.33%)

U.S. futures were mixed in early Wednesday trading as markets weighed the tariff pause against ongoing chip-sector weakness and awaited today's Fed minutes.

Europe and Asia: The Selloff Goes Global

The semiconductor rout that hit Wall Street Tuesday spread hard across Asia overnight. Japan's Nikkei 225 dropped roughly 3.2% to about 65,330, its second straight losing session and lowest close in weeks, as chip-equipment names like Kioxia, Advantest, and Tokyo Electron got hammered. South Korea's KOSPI fell nearly 5.8%, with Samsung Electronics and SK Hynix both down more than 7%, as investors rotated hard out of the AI trade. Hong Kong's Hang Seng was roughly flat, while mainland China's CSI 300 slipped about 2.4%. A BofA fund manager survey found 59% are now hedging AI downside risk — more than double last month's level.

European markets were pointed toward a flat-to-slightly-lower open Wednesday, with futures tracking the weak Asian session but cushioned somewhat by easing bond yields and the Canada-U.S. tariff relief. UK inflation data and comments from ECB officials are also in focus today.

Commodities and the Loonie

Asset	Level (Wed AM)	Trend
Brent Crude	~US$91.30/barrel	4th straight day up
WTI Crude	~US$85.30/barrel	Highest since July 24
Gold (spot)	~US$4,340-4,350/oz	Off Tuesday's ~2% drop
Canadian Dollar (USD/CAD)	~1.388 (72.1¢ US)	Firming on tariff pause

Oil is climbing for a fourth straight session on the ongoing standoff over the Strait of Hormuz — Iran says the waterway stays closed until the U.S. lifts its naval blockade, while Washington insists it's already open. That's kept crude near three-week highs, which is quietly good news for Alberta's energy sector and Canada's terms of trade even as it complicates the inflation picture. Gold pulled back from last week's highs as bond yields spiked, but remains up sharply from a year ago heading into Thursday's Jackson Hole symposium.

What It Means for You

The tariff pause is genuinely good news if you run a business that ships to the U.S., but treat it as a reprieve, not a resolution — the clock resets Friday night, and no details of the actual deal have been made public. If you hold Canadian bank or mining stocks, Tuesday's pullback was broad-based and macro-driven (yields, not fundamentals), so it's not a reason to panic-sell. If you're near retirement or rebalancing a TFSA/RRSP, this week's real risk is on the tech side: the AI-chip trade that's powered a huge chunk of 2026's gains is now getting a genuine stress test, and Canadian investors with U.S. tech exposure through ETFs should expect more volatility through Jackson Hole. Higher oil is a modest tailwind for Western Canadian energy stocks and a mild headwind at the pump.

What's Next

• Today (2:00 p.m. ET): Minutes from the Fed's July 28-29 meeting — markets will parse this for clues on a September rate move.
• Friday, August 21: The reset tariff deadline — watch for whether a finalized, detailed agreement actually materializes.
• August 21-22: Jackson Hole symposium, with Fed Chair Kevin Warsh's remarks a key catalyst for gold and rate expectations.
• This week: More big-box retail earnings (Lowe's reports today; Target and TJX still to come) will offer a fresh read on the U.S. consumer.
• September 2: The Bank of Canada's next rate decision.

This article is for informational purposes only and does not constitute financial advice. Market data reflects levels available at time of publication and may have changed. Always consult a licensed financial advisor before making investment decisions.