S&P/TSX Composite Index: What It Is, Companies & Performance

Canadian investors have long debated whether to bet on their home turf or chase the bigger gains south of the border. The S&P/TSX Composite Index—the benchmark that tracks roughly 250 of Canada’s largest companies—sits at the heart of that choice. Over the past two decades, the numbers tell a story of divergence that might surprise even seasoned portfolio builders.

Current Value: 34,346.29 · Daily Change: +294.06 (+0.86%) · Market Coverage: roughly 70% of total market capitalization · Exchange: Toronto Stock Exchange · Symbol: ^GSPTSE

What is S&P TSX?

The S&P/TSX Composite Index is the broadest gauge of the Canadian equity market, tracking approximately 250 companies listed on the Toronto Stock Exchange. Managed jointly by S&P Dow Jones Indices and TMX Group, it covers roughly 70% of total market capitalization on the TSX, making it the headline index for Canadian equities (Wikipedia). It serves as the basis for multiple derivatives, including futures and exchange-traded funds, and is the benchmark Canadian financial advisors point to when measuring portfolio performance.

Overview of S&P/TSX Composite Index

Unlike the S&P 500—which expanded to include 500 companies in 1957 and now dominates global indexing—the S&P/TSX Composite has remained focused on Canadian economic realities. Its composition shifts with mergers and acquisitions activity, and constituents must meet float-adjusted market capitalization thresholds. The result is an index that reflects where Canadian corporate Canada actually stands: heavily weighted toward financials, energy, and materials.

Role as Canadian Equity Benchmark

The index plays a dual role: it both measures market health and drives investment products. More than CAD 2.75 trillion in market capitalization has been added to the TSX since August 31, 1998, according to S&P Dow Jones Indices, illustrating the index’s significance as a wealth-creation engine for Canadian investors (S&P Dow Jones Indices).

What Companies Are in the S&P TSX?

The S&P/TSX Composite holds approximately 250 companies, selected based on float-adjusted market cap, liquidity, and sector representation. The largest constituents include Royal Bank of Canada, Toronto-Dominion Bank, Enbridge, and Canadian Natural Resources—names that dominate the financial and energy sectors dominating the Canadian market.

S&P/TSX Composite Index Constituents

Eligibility requires that a company be listed on the TSX, meet minimum trading volume thresholds, and represent a sector that contributes meaningfully to the Canadian economy. The index weights companies by market cap float, meaning the largest firms exert the most influence on daily moves.

Eligibility Criteria

TMX Group and S&P Dow Jones Indices jointly determine eligibility, applying rules around trading frequency, share price minimums, and sector balance. Companies undergoing restructuring or with insufficient trading liquidity may be removed, ensuring the index reflects investable, liquid securities.

What Is the Average Return on the TSX Last 20 Years?

Measuring long-term TSX returns requires looking at multiple periods, since year-to-year swings have been significant. The index gained 21.74% in 2021, then fell 8.66% in 2022, before recovering with 8.12% in 2023 and a strong 17.98% in 2024 (Wikipedia). Over a longer horizon, the TSX Composite delivered an annualized return of 8% over the 25 years ending August 31, 2023, according to S&P Dow Jones Indices (S&P Dow Jones Indices).

Historical Returns Data

Looking further back, the TSX Composite Index posted an average annualized return of 7.94% over the 50-year period ending November 20, 2021, compared to the S&P 500’s roughly 10.33% annualized return over the same approximate span from 1957 to 2025 (Questrade). This performance gap tracks closely with sector composition differences between the two indices.

Average Stock Market Returns in Canada

For context, the four-year period ending December 31, 2014 saw the TSX Composite deliver just 5.5% annualized returns versus 20.9% for the S&P 500 in Canadian dollar terms, according to Provisus Wealth Management—a stark illustration of how currency movements and sector shifts can create multi-year divergence (Provisus Wealth Management).

What Is the Difference Between S&P TSX and S&P 500?

The S&P/TSX Composite and the S&P 500 represent two fundamentally different markets. The S&P 500 tracks 500 of the largest US companies across all sectors, while the TSX Composite focuses on Canadian firms. The most consequential difference is sector weight: technology represents 21% of the S&P 500 but only 5.7% of the TSX Composite, according to Logan Wealth Management (Logan Wealth Management).

Key Differences in Composition and Scope

The energy sector carries roughly three times the weight in the TSX compared to the S&P 500, while financials dominate Canadian indexes in a way they don’t in the US. This structural difference explains much of the performance divergence over the past two decades, since technology has been the single largest driver of US equity gains.

The sector composition gap creates measurable differences in valuation and performance metrics. Here is how the two benchmarks compare across key dimensions:

The structural composition difference means TSX investors get different risk and return characteristics than S&P 500 exposure, with the Canadian index offering lower valuation multiples but historically lower growth.

The 2025 comparison highlights how these structural differences create distinct performance profiles. The TSX appeared poised for potential outperformance due to its commodity exposure as gold prices rose, according to ATB Financial (ATB Financial).

Geographic and Sector Focus

For Canadian investors, the geographic dimension matters beyond performance. Holding US-listed securities introduces currency risk—the Canadian dollar fluctuates against the US dollar, adding volatility that may or may not be compensated by higher returns. The TSX offers home-country diversification without that exchange-rate headwind.

Should I Invest in TSX or S&P 500?

The answer depends on what you’re optimizing for. Historically, the S&P 500 has delivered higher annualized returns—roughly 10.33% since 1957 versus the TSX’s 7.94% over its 50-year history—according to Questrade (Questrade). But Canadian investors face currency conversion costs, tax complications with foreign holdings, and the behavioral risk of panic-selling during US-market downturns.

Pros and Cons of Each

“Historically, the US S&P 500 index has outperformed the Canadian S&P TSX Composite, but investors have seen a shift in 2025,” noted Alek Sawchuk, CFA, an analyst at ATB Financial (ATB Financial). That shift reflects the TSX’s commodity exposure paying off as gold rallied and industrial metals faced tariff-related tailwinds.

Investment Considerations for Canadians

For Canadian investors, a blended approach often makes sense: broad S&P 500 exposure captures global tech-driven growth, while TSX allocation provides home-country diversification, dividend advantages, and commodity sector balance. Tax-advantaged accounts like RRSPs and TFSAs may be better suited for different holdings depending on foreign withholding tax implications.

“The technology sector makes up 21% of the capitalization of the S&P 500 versus only 5.7% in the TSX Composite.”

— Logan Wealth Management (Wealth Management Firm)

“The average annual total return for the S&P/TSX Composite index for the four years ending December 31, 2014 was 5.5% versus 20.9% for the S&P 500.”

— Provisus Wealth Management (Wealth Management Firm)

“Since Aug. 31, 1998, the S&P/TSX Composite Index has increased by over CAD 2.75 trillion in total market capitalization.”

— S&P Dow Jones Indices (Index Provider)

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