Related Clues:

• Hit bottom
• Descended
• Lost one's footing
• Lost value
• Plunged
• Took a tumble
• Dropped sharply
• Keeled over
• Took a spill
• At one __ swoop
• Went from bull to bear, e.g.
• Declined precipitously
• What Jack and Jill did
• Immersed
• Took a header