I don't agree with this view. Speculation is essential in the market, and people's speculative demand has promoted the development of finance and other industries. Speculation is also a reflection of commodity prices, and it is also a kind of cognition of the current commodity fundamental form and macro-economy. Non-speculation is an important factor in market balance and a means to return commodity prices to value. Therefore, regardless of personal losses or gains, speculators contribute to the national economy. Only those institutions that monopolize the market or control prices will go against the public interest.