You misunderstood the first order. It should be that this push sold 24 lots, resulting in a decrease of 8 lots, and it was an active purchase, so the overall nature was judged as short (short is a bought position). Of these 8 positions, 4 positions are short, 4 positions are long, and 16 changed hands (it is impossible to judge whether 16 changed hands more or less or both).

Your second question: spot 24, warehouse difference -8, the nature is either flat or empty. As for judging whether it is flat or empty, it depends on whether the pushed transaction is actively bought or sold. If it is an active purchase, it is empty; If it is active selling, it is flat.

Futures company professionals, hope to adopt.

In addition, this attribute in the software is judged by the software according to the basic market pushed by the exchange, not the information released by the exchange, so it is possible that the market pushed by the same exchange has different attributes judged by different softwares. It only has certain reference significance, but its practical significance is not particularly great.