Direct Answer
The S&P/TSX SmallCap Index measures the performance of small-cap companies listed on the Toronto Stock Exchange that meet basic eligibility criteria but fall below the size threshold for inclusion in the S&P/TSX Composite Index. S&P Dow Jones Indices and TMX Group co-manage the index as the small-cap complement to the Composite and the S&P/TSX 60. It is designed to extend coverage of the Canadian main-board market into the smaller end of the TSX universe without including the Venture Exchange.
Where SmallCap fits in the S&P/TSX family
The S&P/TSX index family is structured in size tiers. At the top is the S&P/TSX 60, which covers the 60 largest and most liquid companies on the TSX. Below the 60 sits the S&P/TSX Composite, which covers a broader set of TSX-listed companies above a minimum market capitalization threshold. The S&P/TSX SmallCap Index extends the family's coverage into the smaller companies on the main TSX that do not qualify for the Composite.
This tiered structure is designed to give investors a complete set of investable benchmarks that together cover the full TSX main board. An investor who wants exposure to large Canadian companies can use the S&P/TSX 60 as their benchmark. An investor who wants broad Canadian main-board exposure uses the Composite. An investor who specifically wants Canadian small-cap exposure uses the SmallCap. These indexes are not duplicates of each other; each covers a distinct size segment of the same exchange.
The boundary between the Composite and SmallCap segments is determined by the Composite's eligibility criteria. Companies that grow above the Composite threshold graduate upward into the Composite; companies that fall below the Composite threshold but remain above the SmallCap minimum threshold move into the SmallCap index. This creates a natural flow of companies across size segments that mirrors how businesses develop and change over time.
Both the Composite and SmallCap indexes exclude Venture Exchange companies. The TSX Venture Exchange has its own index, the S&P/TSX Venture Composite, which is a separate product covering a different exchange with different listing standards. The SmallCap index's focus on main-board TSX companies is a deliberate choice to keep it as a measure of small companies that meet the higher listing requirements of the main exchange.
TSX main-board listing and what it means
All companies in the S&P/TSX SmallCap Index are listed on the main Toronto Stock Exchange rather than the TSX Venture Exchange. This distinction matters because the two exchanges have materially different listing requirements. The main TSX requires companies to meet minimum standards for equity, revenue or earnings, financial history, and in some cases profitability, before they can list. These requirements vary by industry category, with different standards for mining and oil companies, industrial companies, and other types of businesses.
The consequence of meeting main-board listing requirements is that SmallCap constituents are generally more established than Venture Exchange companies, even though they are smaller than the Composite constituents. A company in the SmallCap index has met a set of regulatory and financial standards that Venture Exchange companies are not required to meet. This provides a baseline level of financial discipline and transparency that distinguishes the SmallCap segment from the junior market.
Main-board listing also subjects companies to the disclosure and reporting requirements that apply to all TSX-listed issuers, including continuous disclosure obligations, timely reporting of material changes, and compliance with TSX policies on corporate governance and shareholder rights. These requirements provide investors with more consistent information than they would receive from the lighter regulatory environment of the junior market.
For investors considering whether to allocate to the SmallCap index versus the Venture Composite, the main-board listing standard is one of the most important practical differences. It represents a meaningful regulatory and financial filter that affects the risk characteristics of the SmallCap constituent universe, even though individual SmallCap companies can still carry significant risk relative to large-cap equities.
Eligible universe and float-adjusted weighting
The S&P/TSX SmallCap Index covers TSX-listed companies that fall below the size threshold for Composite inclusion but that meet a minimum floor for float-adjusted market capitalization and trading liquidity. The minimum floor ensures that the index does not include companies so small or illiquid that they would be impractical for an index fund to hold.
Eligibility criteria specify the size range that qualifies a company for the SmallCap index rather than for the Composite. A company slightly below the Composite threshold is in the top tier of SmallCap eligibility; a company just above the SmallCap minimum floor is at the bottom of the eligible range. The index methodology documents published by S&P DJI specify the current thresholds, which can be adjusted over time as market capitalization levels across the TSX evolve.
Float-adjusted weighting is the same approach used in the Composite: each company's weight in the index is proportional to the market value of its freely tradeable shares rather than its total capitalization. The adjustment for restricted shares, insider holdings, and other non-public float ensures that index weights reflect the investable opportunity for external investors rather than the company's total equity value including closely held shares.
Because the SmallCap index is float-weighted, the largest small-cap companies at the top of the eligible range will tend to have the highest index weights. Very small companies at the bottom of the eligibility range will have minimal weight even if they are technically in the index. This means the index's return is driven more by the mid-tier of the small-cap range than by the very smallest constituents.
Sector characteristics of Canadian small-cap stocks
Canadian small-cap stocks on the main TSX board reflect the broader structure of Canada's economy. The resource sector plays a significant role because Canada's mining and energy industries span the full size range from very large integrated companies down to smaller producers and junior developers that have advanced beyond the Venture Exchange stage but have not yet grown into Composite territory.
Smaller gold and silver miners, copper producers, and base metal companies that have proven resources and initiated or completed development are common in the SmallCap universe. These companies are past the pure exploration stage represented by many Venture Exchange listings but have not reached the scale of major producers in the Composite. Their performance is sensitive to commodity prices in the same way as their larger counterparts, but their smaller size and financial resources make them more vulnerable to downturns in their specific commodity markets.
Smaller financial institutions including regional banks, trust companies, credit unions that have taken a public listing, specialty finance companies, and smaller insurance businesses can also be present in the SmallCap universe. Canada's large national banks dominate the Composite, but smaller financial institutions serving regional markets or niche segments can populate the SmallCap index.
Technology companies, particularly those based in technology hubs in Toronto, Montreal, Vancouver, and Waterloo, Ontario, increasingly appear in the SmallCap universe. Canada has developed a meaningful technology sector, and companies in software, artificial intelligence, fintech, and enterprise software have listed on the main TSX at smaller market capitalizations. Industrial companies serving domestic Canadian infrastructure, construction, and manufacturing markets are another segment of the SmallCap universe.
Comparison with the S&P/TSX Composite
The key difference between the SmallCap index and the Composite is the size range of constituents. The Composite covers larger TSX companies that are above the minimum Composite threshold; the SmallCap covers smaller TSX companies below that threshold. The two indexes are designed to be complementary rather than overlapping: a company cannot be in both indexes simultaneously, and together the two indexes cover a broader share of the TSX main board than either does alone.
The SmallCap index's constituents will generally have lower trading liquidity, higher price volatility, and more sensitivity to company-specific events than Composite constituents. Smaller companies have fewer resources to absorb adverse developments, smaller revenue and earnings bases to buffer against revenue shortfalls, and narrower investor followings that can create larger price swings on material news.
The Composite is weighted toward the largest Canadian companies, which are primarily large financial institutions and large resource producers. The SmallCap has a different sector profile: its constituents include a broader range of company types and sizes within the small-cap range, giving investors exposure to parts of the Canadian economy that are underrepresented in the large-cap Composite.
Portfolio construction strategies that combine the Composite and SmallCap indexes aim to capture the full breadth of the TSX main board. Some research has found that small-cap stocks generate different return characteristics than large-cap stocks over long periods, though the consistency, magnitude, and persistence of any size-related return differences depend on the time period and market environment being analyzed.
Comparison with the S&P/TSX Venture Composite
The S&P/TSX SmallCap Index and the S&P/TSX Venture Composite are both indexes of smaller Canadian companies, but they cover different exchanges and different stages of company development. The SmallCap covers companies on the main TSX; the Venture Composite covers companies on the junior TSX Venture Exchange. This exchange-level distinction corresponds to a meaningful difference in company maturity, financial requirements, and risk level.
Venture Exchange companies are subject to lower listing requirements and tend to be at earlier stages of development than even the smallest companies in the SmallCap index. A company in the SmallCap index has met main-board TSX listing requirements, which impose higher standards than the Venture Exchange requires. This means SmallCap constituents have generally cleared a higher regulatory and financial bar than Venture Composite constituents.
The practical consequence for investors is that the Venture Composite carries more early-stage company risk, more exploration and development risk, and more commodity-price sensitivity through junior resource companies than the SmallCap index. The SmallCap index's main-board requirement provides a baseline filter that reduces (though does not eliminate) the most extreme company-level risks found on the Venture Exchange.
Graduation from the Venture Exchange to the main TSX is the pathway between the two universes. A company that successfully develops its business to meet main-board listing requirements moves from the Venture Composite's universe to the SmallCap's universe. If it then grows above the Composite threshold, it graduates further into the Composite. This graduation chain is one of the structural features that gives the S&P/TSX index family its coherence as a tiered coverage system.
Reconstitution and rebalancing
The S&P/TSX SmallCap Index is reviewed quarterly, in line with the broader S&P/TSX family's quarterly review schedule. At each quarterly review, the eligibility criteria are applied to current market data to determine additions, deletions, and weight changes. Companies that have grown above the Composite threshold are removed from the SmallCap index and added to the Composite; companies that have fallen below the SmallCap minimum floor are removed from the index entirely.
Between scheduled quarterly reviews, extraordinary corporate events such as mergers, acquisitions, delistings, and bankruptcies may require off-cycle index adjustments. The methodology specifies how each type of corporate action is handled, including whether a resulting company is immediately eligible for the index or must wait for the next scheduled review.
The quarterly rebalancing process creates periodic turnover in the index that funds tracking the SmallCap index must replicate. Smaller and less liquid stocks can be more expensive to trade than large-cap stocks, so the implementation cost of rebalancing a SmallCap index fund is typically higher per dollar of assets than for a Composite fund. Fund managers tracking the SmallCap index may use sampling techniques to manage these costs for the least liquid constituents.
Return variants and currency
The S&P/TSX SmallCap Index is calculated in Canadian dollars in both price return and total return forms. The total return version reinvests dividends, while the price return version reflects only share price changes. Canadian small-cap stocks generally have lower dividend yields than large-cap stocks, because smaller companies tend to reinvest earnings into growth rather than distributing them as dividends. The gap between price return and total return is therefore smaller for the SmallCap index than for the large-cap Composite or the S&P/TSX 60.
Volatility of the SmallCap index is higher than that of the Composite. Small-cap stocks across all markets tend to show greater price variability than large-cap stocks, for reasons including less financial resilience, lower analyst coverage, thinner trading liquidity, and greater sensitivity to company-specific news. These characteristics are present in Canadian small-cap stocks and are reflected in the SmallCap index's typical return distribution relative to the Composite.
Foreign investors in the SmallCap index face the same currency consideration as with other S&P/TSX indexes: the index is denominated in Canadian dollars, so returns must be converted to the investor's home currency. The Canadian dollar's relationship with commodity prices and its sensitivity to the Bank of Canada's monetary policy means that currency effects can be material for investors measuring returns in U.S. dollars or other currencies.
Over long periods, the combination of small-cap equity returns and Canadian dollar currency exposure creates a return profile that differs from both a global small-cap allocation and a Canadian large-cap allocation. Investors using the SmallCap index in a portfolio should consider both the equity characteristics of Canadian small-caps and the currency dimension when assessing their overall exposure.
Frequently asked questions
What is the S&P/TSX SmallCap Index?
The S&P/TSX SmallCap Index measures small-cap companies listed on the Toronto Stock Exchange that fall below the size threshold for the S&P/TSX Composite but meet minimum liquidity requirements. S&P Dow Jones Indices and TMX Group co-manage it as the small-cap extension of the S&P/TSX index family.
How does the S&P/TSX SmallCap differ from the S&P/TSX Venture Composite?
The S&P/TSX SmallCap Index covers smaller companies listed on the main Toronto Stock Exchange, which has higher listing standards than the TSX Venture Exchange. The S&P/TSX Venture Composite covers companies on the junior Venture Exchange, which has lower listing requirements and tends to include earlier-stage companies. The SmallCap Index therefore represents a less risky segment of the Canadian equity market than the Venture Composite, since all its constituents meet main-board TSX listing requirements.
How does the S&P/TSX SmallCap Index relate to the S&P/TSX Composite?
The S&P/TSX Composite covers TSX-listed companies above a market cap threshold. The S&P/TSX SmallCap Index covers TSX-listed companies that fall below that threshold but meet a minimum size and liquidity floor. Together, the Composite and SmallCap families provide broader coverage of the TSX main board. A company that grows sufficiently can graduate from SmallCap eligibility into the Composite.
What sectors are typically found in the S&P/TSX SmallCap Index?
Canadian small-cap stocks on the TSX main board tend to include smaller resource producers, junior miners, smaller financial institutions, technology companies, and industrial businesses serving domestic Canadian markets. Because Canada's economy has a large resource component, natural resource companies often represent a significant part of the small-cap universe, though the exact sector composition changes over time with market conditions.
Is the S&P/TSX SmallCap Index more volatile than the S&P/TSX Composite?
Small-cap stocks generally exhibit higher price volatility than large-cap stocks because smaller companies have less financial resilience, lower trading liquidity, and more sensitivity to company-specific events. The S&P/TSX SmallCap Index therefore tends to experience larger price swings than the S&P/TSX Composite, which is weighted toward the largest and most liquid Canadian companies.