Investments in equity securities as of December 31, 2018 and 2017 are summarized based on the primary industry of the investee in the table below (in millions).


	Cost Basis		Net Unrealized Gains		Fair Value
December 31, 2018 *
Banks, insurance and finance	$	44,332	$	38,260	$	82,592
Consumer products		38,783		22,838		61,621
Commercial, industrial and other		19,752		8,792		28,544

	$	102,867	$	69,890	$	172,757

*	Approximately 68% of the aggregate fair value was concentrated in five companies (American Express Company – $14.5 billion; Apple Inc. – $40.3 billion; Bank of America Corporation – $22.6 billion; The Coca-Cola Company – $18.9 billion and Wells Fargo & Company – $20.7 billion).


	Cost Basis		Net Unrealized Gains		Fair Value
December 31, 2017 *
Banks, insurance and finance	$	25,783	$	55,026	$	80,809
Consumer products		25,177		25,698		50,875
Commercial, industrial and other		23,716		15,140		38,856

	$	74,676	$	95,864	$	170,540

*	Approximately 65% of the aggregate fair value was concentrated in five companies (American Express Company – $15.1 billion; Apple Inc. – $28.2 billion; Bank of America Corporation – $20.7 billion; The Coca-Cola Company – $18.4 billion and Wells Fargo & Company – $29.3 billion).