roller coaster - definition in the Business English Dictionary - Cambridge Dictionaries Online

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English definition of “roller coaster”

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roller coaster

noun [S]
 
 
a situation in which prices, rates, etc. keep going up and down by large amounts very quickly: Last week the roller coaster of crude oil prices climbed to $89.47 on Thursday and $90 on Friday. Mortgage chaos sent the stock market on a roller coaster ride.
(Definition of roller coaster from the Cambridge Business English Dictionary © Cambridge University Press)
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