The fund will not disappear if it keeps falling, because it will close its position after falling to a certain extent, so it will not continue to fall.
For graded funds, after falling to a certain extent, the foundation will trigger a discount, so it will not fall away.
Because the fund itself is not leveraged, which is different from stock futures, the probability of falling is also very low. Moreover, the net value of the fund unit refers to the value of each fund, which is a measure of how much the fund is worth.
Futures and stocks have a certain correlation. When the futures target falls, the related stocks will also fall, and when the futures target rises, the related stocks will also rise.