1, the so-called lock-in, generally refers to an operation method in which futures traders open positions in the same amount but in the opposite direction, so that the profit and loss of positions will not increase or decrease no matter where the futures price changes (or rises or falls).
2. Turn positions, that is, before the specified turn position date of commodity futures, first pull out the positive price difference between near-term futures and far-term futures (trading instructions: buy far-term futures and short near-term futures). Next, when fund managers trade positions, they still have to bite the bullet and trade positions in the face of the existing positive spread (trading instructions: buy far months and short near months). At this time, the "speculators" who open positions will easily transfer their positions to commodity funds (trading instructions: short the far month and buy the near month). This kind of trading action happens to be the opponent of fund managers, contrary to the positions they have established, and the positions are cleared smoothly.
3. Covering positions means that investors buy similar securities on the basis of holding a certain number of securities. Covering the position is a buying behavior because the stock price falls and in order to reduce the stock cost. Covering positions is a passive contingency strategy after being locked up. It is not a good method to solve the problem in itself, but it is the most suitable method in some specific situations.