The assets of a fund's holdings minus the fund's liabilities. Most often represented as a per-share value, i.e. net asset value (NAV), which equals the current market value of the funds' holdings minus the fund's liabilities, divided by the number of fund shares outstanding.
Net Assets = Total Assets - Total Liabilities
Net Asset Value Per Share = (Total Assets - Total Liabilities)/Number of Fund Shares in Issue
Fund NAVs are calculated at the end of each trading day and updated on Morningstar.co.uk accordingly. Because investments trusts and ETFs are traded on an exchange like stocks, their market price can be above NAV (trading at a premium) or below NAV (trading at a discount).