KnowraIndex fundLinked fromLinked fromThe 16 pages that link to Index fund, each with the reason it gives.All 16Broader topic 1Related 7Narrower topic 3Compared with 5Exchange-traded fundNarrower topic: Many ETFs are index funds, though ETF describes a trading structure rather than an investment strategy.John C. BogleNarrower topic: Bogle turned index investing into a practical, low-cost choice for retail investors.The Vanguard GroupNarrower topic: Index tracking underlies many of Vanguard’s best-known funds and its low-cost approach.