	December 31
	2017
	NT$
	(In Millions)
Equity securities
Domestic listed stocks	$	3,125
Domestic non-listed stocks		2,332
Foreign non-listed stocks		294
	$	5,751

Chunghwa evaluated and concluded its listed available-for-sale financial assets were impaired and recorded an impairment loss of $577 million for the year ended December 31, 2016. The Company evaluated and concluded that there was no indication that its listed available-for-sale financial assets were impaired; therefore, no impairment loss was recognized for the year ended December 31, 2017.

The fair values of the above non-listed stocks investments cannot be reliably measured due to the range of reasonable fair value estimates was so significant, the above non-listed stocks investments owned by the Company were carried at costs less any impairment losses at the balance sheet dates.

The Company invested $300 million to invest Taiwania Capital Buffalo Fund Co., Ltd. in December 2017 and owns 12.9% equity shares of Taiwania Capital Buffalo Fund Co., Ltd.. Taiwania Capital Buffalo Fund Co., Ltd. engaged mainly in investment business.

The Company disposed non-listed available-for-sale financial assets with carrying amounts of $9 million and $5 million for the years ended 2016 and 2017, respectively, and recognized the gains (losses) from the disposal of $1 million and $3 million for the years ended December 31, 2016 and 2017, respectively.

The Company evaluated and concluded that there was no indication that non-listed available-for-sale financial assets were impaired; therefore, no impairment loss was recognized for the years ended December 31, 2016 and 2017.