FDI stock is the value of the share of capital

Capital (economics)

In economics, capital, capital goods, or real capital refers to already-produced durable goods used in production of goods or services. The capital goods are not significantly consumed, though they may depreciate in the production process...

 and reserves

Reserve (Accounting)

In financial accounting, the term reserve is most commonly used to describe any part of shareholders' equity, except for basic share capital. Sometimes, the term is used instead of the term provision; such a use, however, is inconsistent with the terminology suggested by International Accounting...

 (including retained profits

Profit (accounting)

In accounting, profit can be considered to be the difference between the purchase price and the costs of bringing to market whatever it is that is accounted as an enterprise in terms of the component costs of delivered goods and/or services and any operating or other expenses.-Definition:There are...

) attributable to the parent enterprise, plus the net indebtedness of affiliates to the parent enterprise.

Inward stock is the value of the capital and reserves in the economy attributable to a parent enterprise resident in a different economy. Outward stock refers to the value of capital and reserves in another economy attributable to a parent enterprise resident in the economy.