Independent investing education
ETF Risks & Tracking Error
Educational content only — not financial advice. Canada-aware where noted. InvestorsEdge is not a brokerage.
Market risk still comes first
A broad equity ETF will fall when markets fall. Diversification reduces single-stock blow-ups; it does not eliminate market risk. Match ETF risk to your asset allocation and time horizon.
Tracking error and tracking difference
Tracking error measures how tightly an ETF follows its index. Fees, sampling, securities lending, and cash drag create small gaps. For core holdings, prefer ETFs with a long record of staying close to the index after costs.
Compare MERs with the ideas in our ETF fees guide and stress-test costs in the fee impact calculator.
Liquidity and spreads
Daily volume matters less than the liquidity of the underlying holdings and the bid–ask spread you actually pay. Use limit orders on thinner ETFs. See ETF liquidity & bid–ask spread.
Risks to treat carefully
- Leveraged and inverse ETFs meant for short holding periods
- Narrow single-sector or single-country bets sized as “core”
- Complex products you cannot explain in one sentence
For Canadian accounts, remember tax wrapper choice (TFSA/RRSP) changes outcomes more than obsessing over tiny tracking gaps on a broad index ETF.
FAQ
Is tracking error a reason to avoid ETFs?
No—for broad, low-cost index ETFs it is usually small. It is a reason to avoid opaque or exotic funds you do not understand.
Where should I learn the basics first?
Start with ETFs Explained, then return here for risk details.