The balance sheet shows: 1) the portfolio of assets for a corporation, as well as its liabilities and owner's equity, at the end of an accounting period. 2) the portfolio of assets for a corporation, as well as its liabilities, at the end of an accounting period. 3) the portfolio of assets for a corporation, as well as its liabilities, at the end of an accounting period. 4) the portfolio of assets for a corporation, as well as its liabilities and owner's equity, over an accounting period