Compare Actively Managed vs Index Funds

You're building a portfolio and the active-versus-passive argument keeps following you around. This compares the two for a long-term investor: what the decade-plus data says about returns after fees, how a small annual charge compounds against you, and where each genuinely makes sense. You get an evidence-based answer rather than whichever fund a marketer shouted loudest about.

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You are building or reviewing an investment portfolio and want to make an evidence-based decision about whether to use actively managed funds, index trackers, or a combination.
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**Compare actively managed funds and index funds for a long-term investor:**
1. Historical performance: what the data says about active vs passive returns over 10+ year periods after fees
2. Cost impact: how an annual management charge difference of 1% compounds over 20 years on {PORTFOLIO_VALUE}
3. When active management has historically added value: asset classes and market conditions where it outperforms
4. Tax efficiency differences between the two approaches
5. Behavioural factors: which approach is more likely to be held through a market downturn
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- Evidence summary: the headline findings from the SPIVA or similar long-term persistence data
- Compound cost table: the sterling cost of a 0.5%, 1%, and 1.5% annual fee difference over 10, 20, and 30 years
- Recommended approach for a long-term buy-and-hold investor with reasoning
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