The relationship between fund and crude oil is very complicated, so it is impossible to simply say which fund and crude oil are in completely opposite directions. But in the financial market, there is an investment tool called reverse index fund, which can track the reverse trend of a specific index.

Reverse index funds use derivatives or borrow leveraged funds to track the negative trend of a specific index. For example, some reverse index funds may track the negative trend of the S&P 500 index, and when the S&P 500 index falls, the net value of these funds may rise. Please note, however, that this is only an example, and it does not mean that all reverse index funds will completely reverse the corresponding index.

As for crude oil, market factors, supply and demand, geopolitical influence and other factors will all affect its price change. Therefore, not all types of funds will completely go against crude oil.

Generally speaking, the relationship between funds and crude oil is influenced by many factors, and it cannot be simply said that which fund and crude oil are completely opposite.