shakeout

[sheyk-out]

noun

an elimination or winnowing out of some competing businesses, products, etc., as a result of intense competition in a market of declining sales or rising standards of quality.
a rapid decline in the values of certain securities sold in stock exchanges or the like.

Origin of shakeout

First recorded in 1890–95; noun use of verb phrase shake out

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

The signs of a shakeout are evident beyond the bestseller list.
Celebrity Memoir Glut
Ben Yagoda
November 24, 2009

also shake-out, "business upheaval," 1895, from verbal phrase; see shake (v.) + out (adv.).