nettable

Capable of being caught with a net.

In an emergency, a few choice fishes have been collected by enterprising divers use^([sic]) up to four different types of nets which can more or less catch almost any fish which is nettable.

Capable of producing a net profit on the books.

Nonnettable inventory is one type of unavailable inventory, but there may also be some nettable inventory that is unavailable to be picked.

If the two trades are not legally nettable, the second trade has almost zero impact on potential exposure. If they are legally nettable, then the second trade significantly reduces potential exposure.