Making this blunder could cost you big.Let's say you stumble across a stock you've never heard of before that has generated amazing annual returns of 20% or more year after year. Would you immediately add it to your portfolio? If you're smart, you'd answer no. What if Warren Buffett recommended it? ...

https://www.fool.com/investing/2021/05/16/this-is-a-surefire-sign-you-shouldnt-invest-in-a-s/?source=iedfolrf0000001

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