3 Bear Market Mistakes Investors Should Avoid at All Costs - The Motley Fool

Bear markets can present buying opportunities, but that doesn't mean it's time to swing for the fences.

The Nasdaq Composite and Russell 2000 are already deep into a bear market -- which is a decline of 20% or more from a previous high. And after this week's sell-off, the S&P 500 is now just a few … [+5331 chars]

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