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Re:U.S. stock market returns – a history from the 1870s to 2022 by cpncrunch on Friday January 06, 2023 @12:21PM (#34277698)
No, those figures are just the Dow Jones index at those dates, it doesn't include dividends. You can use this site to calculate total return with dividends reinvested:

https://dqydj.com/dow-jones-return-calculator/

Plugging in those dates gives 0.078% return without reinvesting dividends (basically the figures given in the parent comment), 4.632% with dividends reinvested, and -1.941% with dividends reinvested and taking CPI into account.

So, you still come out negative due to inflation, even after reinvesting the dividends.

Re:U.S. stock market returns – a history from the 1870s to 2022 by lotsofpulp on Friday January 06, 2023 @12:29PM (#34277848)
But no credible investment advice in the last many decades has suggested investing in DJIA.