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A comment on A Professor Who Was Right About Index Funds All Along. Parent comment

Re:A Professor Who Was Right About Index Funds All Along by OscarCunningham on Saturday October 22, 2016 @12:52PM (#12769414)
Nah, because the value of the stock that the index fund already owned would also increase in the same proportion.
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Re:A Professor Who Was Right About Index Funds All Along by icebraining on Saturday October 22, 2016 @02:28PM (#12769897)
Fair enough, for stocks the index already owned, but what about for the others? If the investor took a stock that wasn't in the top 500 and inflated its value above the 500th stock, wouldn't an S&P 500 index fund then buy it?
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