https://www.cnbc.com/2018/08/17/applied-materials-weak-forecast-fans-concerns-over-the-end-of-the-chip-boom.html

Applied Materials, the world's largest supplier of equipment used to make chips, forecast current-quarter profit and revenue below Wall Street estimates, adding to fears that a two-year chip boom may be losing steam.

Shares of the company, whose results are seen as the bellwether for the chip industry, were down 4 percent at $45.55 in extended trading on Thursday. Rival Lam Research also dropped about 2 percent.