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You're not wrong that that effect can exist. And I'm not saying that investing is a totally altruistic, virtuous action. However, the criticisms of the stock market as not being "real investing" are largely off-base. Liquidity encourages investment -- illiquid investments are universally less preferred than liquid investments, all other things being equal. Even if non-IPO investors/subsequent issuance investors are not directly providing capital to a company, nobody would participate in IPOs or other stock issuances unless they were confident of a market for that stock in the future. Therefore participation in the secondary market for stocks is necessary for a primary market to exist in any meaningful way. (In a similar way, if the public market did not exist, there would be much less private investment, much fewer startups, etc.)