That is the closing position of the short position of the killing contract on the long position.

$USUAL alert has been lifted. Just now I asked everyone to set stop-loss lines because I saw a large amount of selling and was worried about a potential run on the bank. This was a precautionary warning.
During the rapid drop from 1.1U to 0.93U, I observed and confirmed that there was protective buying power involved, so there's no need to worry too much.
Rational trading, flexible response, avoiding major risks, is the key to stable profits.
$USUAL