Sorry, available market cap data for Walmart (WMT) starts on October 1, 1985. Walmart (WMT) has a market capitalization of $1T, based on 7.97B shares at a price of $131.45 (down 1.7% on Friday).

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
December 31 1984	$0.23	$0.23	$0.23	$0.23	21,004,800
December 28 1984	$0.24	$0.24	$0.23	$0.23	58,176,000
December 27 1984	$0.24	$0.24	$0.23	$0.24	46,550,400
December 26 1984	$0.25	$0.25	$0.24	$0.24	2,851,200
December 24 1984	$0.25	$0.25	$0.25	$0.25	5,856,000
December 21 1984	$0.25	$0.25	$0.24	$0.24	20,140,800
December 20 1984	$0.25	$0.25	$0.24	$0.24	12,182,400
December 19 1984	$0.25	$0.25	$0.25	$0.25	35,577,600
December 18 1984	$0.25	$0.25	$0.24	$0.25	34,089,600
December 17 1984	$0.24	$0.24	$0.24	$0.24	16,521,600
December 14 1984	$0.24	$0.24	$0.24	$0.24	11,884,800
December 13 1984	$0.24	$0.24	$0.24	$0.24	12,076,800
December 12 1984	$0.24	$0.24	$0.24	$0.24	13,430,400
December 11 1984	$0.24	$0.24	$0.24	$0.24	9,120,000
December 10 1984	$0.24	$0.24	$0.23	$0.24	19,257,600
December 07 1984	$0.24	$0.24	$0.24	$0.24	23,692,800
December 06 1984	$0.23	$0.24	$0.23	$0.24	21,686,400
December 05 1984	$0.24	$0.24	$0.23	$0.23	34,147,200
December 04 1984	$0.24	$0.24	$0.24	$0.24	14,438,400
December 03 1984	$0.24	$0.25	$0.24	$0.24	45,148,800
November 30 1984	$0.24	$0.25	$0.24	$0.24	14,400,000
November 29 1984	$0.25	$0.25	$0.25	$0.25	21,292,800
November 28 1984	$0.25	$0.25	$0.25	$0.25	32,649,600
November 27 1984	$0.25	$0.26	$0.25	$0.26	13,497,600
November 26 1984	$0.25	$0.25	$0.25	$0.25	7,305,600