https://money.usnews.com/investing/investing-101/articles/what-are-industrial-and-materials-stocksWhat Are Industrial and Materials Stocks?
U.S News & World Report Money
A simple way of gaining exposure to these sectors is through mutual funds and exchange-traded funds such as the Vanguard Materials Index Fund
INDUSTRIAL AND materials stocks are highly cyclical sectors of the market and can add a larger amount of volatility to a portfolio.
The stock gains can be large, but these industries are also more sensitive to economic cycles and trade wars.