What do you mean by multiple compression?
The word you said belongs to the vocabulary of futures industry. Mastering the vocabulary of futures industry can make you feel at home in the study of futures industry. The translation and meaning of this word are as follows: it refers to the situation that although the company makes good profits, its share price remains unchanged or even falls, resulting in a decline in P/E ratio, but the company's fundamentals are actually fine. The valuation of a stock is controversial, but the only difference is the price that investors are willing to pay for it.