Specifically, for example, an investor bought five copper futures contracts, but after the contracts were bought, the copper price kept falling. At this time, the investor has lost a lot, but he still expects the market to turn around and hopes that the copper price will rise before selling. But he still had no confidence in the market, so he did the opposite, that is, shorting five copper contracts.
Then at this time, his position is basically locked. No matter how the market changes, he will not make a profit or lose money.
But in fact, this approach is not very desirable, and its role is only to make investors feel better. When the market comes out of its own big reversal, it is more appropriate to admit mistakes and leave. If you find a better time to enter the market again, then the operation will be more handy and flexible. Don't leave your position and wait there.