Net position

Position is the amount of cash, securities, commodities and to wider extent all financial instruments held and/or owned by a physical person or legal entity.

In financial trading, a position is a binding commitment to buy or sell a given amount of financial instruments, such as securities, currencies or commodities, for a given price.

In derivatives trading or for financial instruments, the concept of a position is used extensively. There are two basic types of position: a long and a short.

Traded options will be used in the following explanations. The same principle applies for futures and other securities. For simplicity, only one contract is being traded in these examples.

Net position is the difference between total open long (receivable) and open short (payable) positions in a given asset (security, foreign exchange currency, commodity, etc.) held by an individual. This also refers to the amount of assets held by a person, firm, or financial institution, as well as the ownership status of a person's or institution's investments.

...
Wikipedia