Bear Market: From Cautionary Proverb to Financial Lingo

From a Wall Street Journal column by Ben Zimmer headlined “Bear Market: From Cautionary Proverb to Financial Lingo”:

On Monday, the benchmark S&P 500 stock index entered bear-market territory for the first time since the beginning of the coronavirus pandemic. As traditionally defined, a “bear market” occurs when a major index sinks 20% or more from its recent high. Conversely, a “bull market” typically means an index has risen 20% from its recent low.