Cocoa prices dropped more than 19% on Monday, giving up a large part of the strong gains that lifted them to all-time highs earlier this year.
Prices last traded at around $7,175, after dropping about $1,700 per metric ton. It would be the biggest one-day drop for the commodity since at least 1980.
Earlier in the year, cocoa futures hit a record of $11,722 per metric ton.
Cocoa prices soared this year amid a shortage of cocoa beans due to supply disruptions, including heavy rains and disease. The surge also heightened fears of steeper prices at the grocery store for consumers.
Despite Monday's steep decline, cocoa is up nearly 70% year to date and 137% over the past 12 months.