fall by

fall by (some amount)

To decrease by a specific amount. Often used of stocks. The stocks market only fell by a few points today.See also: by, fall

fall by (some amount)

[for an asset] to drop in value by a certain amount. The gas stocks fell by nearly 1.0 percent today. If the stock market falls by four hundred points, I'm going to jump off a cliff.See also: by, fall