KEY POINTS
  • "Bear market" is a term used by investors to describe a steep and sustained market downturn.
  • Technically, it's a drop of 20% or more from recent highs.
  • It's a symbol and psychological hurdle for investors.

The S&P 500 Index fell into a so-called bear market on Friday. But just what does that mean?

"Bear market" is a term used by investors to describe a steep and sustained market downturn. Technically, it's a drop of 20% or more from recent highs.