Historical clue formulations

• Steep decline — 2025-03-30
• Plummet — 2017-10-31
• Bad news on the stock market — 2017-08-19
• Plummet — 2010-12-05
• Plunge — 2010-11-05
• Plummet — 2010-01-19
• Calamitous decline — 2009-07-24
• Disastrous drop — 2008-06-29
• Steep drop, as in prices — 2006-04-24
• Plummet — 2001-11-09
• Disastrous drop — 2000-10-23