Generally speaking, the establishment of futures short positions can make up for the loss of the spot market with the profits of the futures market when the spot price falls!
Specifically, when you own stocks in the spot market and the stock expectation is not ideal, do a futures transaction with the same variety, quantity and term as the spot market, but in the opposite direction, with a view to hedging through futures contracts in the event that the spot is not ideal in a certain period in the future. Simply put, use the profit of one market to make up for the loss of another market! (because the two markets are in opposite directions) so as to avoid the losses caused by spot price changes!