Gross national product was estimated at HK$306.1 billion in the second quarter of last year at current prices, a 3.8 per cent rise from the first quarter, latest data shows.
The Census and Statistics Department said income inflow was HK$91.8 billion for the same period, while outflow was HK$87.5 billion.
Direct investment income accounted for the largest share of inflows, at 39.1 per cent, while other investment income amounted to 35.7 per cent and portfolio investments totalled 25.1 per cent.
Direct investment also accounted for the largest slice of outflows at 58.8 per cent, followed by other income (31.6 per cent) and portfolio income (9.6 per cent).
There was a net outflow in direct investment income of HK$15.6 billion.
GNP denotes total income earned by residents of a territory, regardless of where the economic activities giving the income are undertaken.