3(1)For the purpose of ascertaining the market value of any shares or securities in accordance with paragraph 1(2) of Schedule 5 to this Act, paragraph 2 above shall have effect subject to the provisions of this paragraph.
(2)Sub-paragraph (3)(a) of that paragraph shall have effect as if for the words, “one-quarter” there were substituted the words “ one-half ”, and as between the amount under paragraph (a) and the amount under paragraph (b) of that sub-paragraph the higher, and not the lower, amount shall be chosen.
(3)Sub-paragraph (4) of that paragraph shall have effect as if for the reference to an amount equal to the buying price there were substituted a reference to an amount halfway between the buying and selling prices.
(4)Where the market value of any shares or securities not within the said sub-paragraph (3) falls to be ascertained by reference to a pair of prices quoted on a stock exchange, an adjustment shall be made so as to increase the market value by an amount corresponding to that by which any market value is increased under sub-paragraph (2) above.