Tracker Fund (Index Fund)
Plain-English definition of Tracker Fund (Index Fund) — part of our investing glossary.
Definition
A fund that mechanically replicates a market index (like the FTSE 100 or MSCI World) rather than being actively managed. Low expense ratios and historically outperform most actively managed funds over long periods.
Worked example
A global equity tracker (e.g., a fund tracking the FTSE All-World or MSCI ACWI) at ~0.2% fees captures the average return of global stocks. Historically this has beaten ~80% of actively managed funds over any 20-year window.
Why it matters
Investing is unusually unforgiving of vocabulary gaps. Costs compound, inflation compounds, and the gap between a "5% return" and a "5% real return after 0.3% fees" is the difference between a comfortable retirement and a tight one.
Common mistake
Focusing on nominal returns and headline past performance rather than fees, tax wrappers, and real (post-inflation) returns. A cheap tracker inside an ISA almost always beats an expensive active fund in a taxable account over 20+ years.
Calculators that use this concept
See also
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- Real vs Nominal Return — A nominal return is the headline investment return. A real return is the nominal return minus inflation. A 7% …