英和和英

a sudden [steep] descent in the price of shares

a slump

a sharp drop in the stock market

a jump

Stock prices are fluctuating violently.

the level of stock prices

a condition of the market continuing in a slump

stock prices broke

a condition in which the market price suddenly falls

Stock prices took a nose‐dive.

The prices slump.

The prices jump and slump―fluctuate violently―run up and down the gamut.

a drop in prices [stocks]

the convulsions of the stock market

The stocks suddenly lowered in value.

The stock market collapsed

The prices jump and slump

an instance of stock prices being in a state of decline

The stock market plummeted

a rising market

The prices jump

Stock prices have been going down and down with no sign of bottoming out.

the fall in the price of rice―the depreciation of rice

Stock prices dropped

Stock fell hard.

an upward trend in the stock market

of a stock quotation that has fallen, to rise in reaction to something

the stock took a nosedive

the trend of the stock market

The stocks had a fast run-up