What Buffett really recommended for mass investors(including me) is low-cost s&p 500 index fund, specifically $标普500ETF-Vanguard(VOO)$, and he has recommended several times. However many investment influencers in China lie to you that Buffett recommend index fund, and you should buy “their recommendation index fund”, which is a hustle.
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@标普500ETF please cut expense ratio and increase dividends