S&P/TSX Composite Index Drops as Basic Materials Weigh on Market; U.S. Stocks Mixed Amid Tariff Tensions

3 min read | July 09, 2025 08:24 AM EDT | By Team Kalkine Media

Highlights

  • S&P/TSX Composite Index closed lower, with basic materials facing significant pressure

  • Copper tariff announcement by the U.S. impacts Canadian mining-related equities

  • U.S. markets show mixed movement amid continued trade uncertainties

Canada’s main equities benchmark, the S&P/TSX Composite Index, ended the day lower, pulled down largely by weakness in the basic materials sector. Ongoing concerns surrounding global trade and the copper tariff proposal from the U.S. administration have added uncertainty for companies listed under tickers such as  (TSE:FM), both of which are directly exposed to fluctuations in the copper market.

Copper Trade Developments Impact Sentiment

Trade discussions between Canadian Prime Minister Mark Carney and U.S. President Donald Trump have experienced repeated delays, contributing to the cautious market tone. Copper-related stocks in Canada saw notable declines after Trump announced intentions to apply a high tariff on copper imports. Although no executive order was signed, confirmation of the rate during a cabinet meeting added pressure on the market.

Canada’s copper exports to the U.S. represent a significant portion of the sector’s trade activity, and the reaction from equities with mining exposure was immediate. Companies engaged in copper extraction and exportation, such as those trading under (TSE:HBM) and (TSE:LUN), were among those facing declines.

Mixed Performance Across U.S. Indices

In the U.S., the Dow Jones Industrial Average posted a moderate loss, reflecting investor concern over fresh tariffs set on multiple countries. The S&P 500 experienced a slight downturn, while the Nasdaq Composite Index edged higher, driven by selective gains in the technology segment.

President Trump’s recent decision to initiate new import taxes on goods from Japan, South Korea, and other nations added another layer of complexity to the current economic narrative. These tariffs are scheduled for enforcement at the start of August, coinciding with the end of a prior grace period aimed at allowing room for revised trade agreements.

Tariff Pressures Felt Across Multiple Canadian Export Sectors

Uncertainty surrounding future U.S.-Canada trade arrangements weighed on investor sentiment across sectors with export exposure. Beyond copper, industries tied to broader resource exports, including those represented on the TSX Completion Index, were also sensitive to news of protectionist measures.

The implications of such trade actions are expected to gradually affect business operations. Although no immediate changes to policy have been signed into law, the confirmation of intent has created volatility in names like (TSE:S) and (TSE:NTR).

Market Participants Cautious as Trade Talks Stall

Expectations for a resolution to U.S.-Canada trade negotiations have been adjusted in light of recent developments. Investors monitored commentary from both governments closely, as clarity on the copper tariff timeline remains absent. Market participants also responded to shifting timelines and rhetoric surrounding future global trade policy, contributing to a largely defensive stance during the session.

Currency and Commodities Update

The Canadian dollar weakened slightly in comparison to the U.S. dollar during the day. In commodities, crude oil futures advanced while gold prices moved lower. These shifts added another layer of complexity to Canadian equities, particularly those linked to energy and precious metals on the TSX Smallcap Index.


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