Sorry, available market cap data for Johnson & Johnson (JNJ) starts on July 1, 1985. Johnson & Johnson (JNJ) has a market capitalization of $460.1B, based on 2.41B shares at a price of $191.05 (up 0.5% yesterday).

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
December 31 1984	$0.95	$0.97	$0.95	$0.96	4,233,600
December 28 1984	$0.95	$0.96	$0.95	$0.95	3,153,600
December 27 1984	$0.96	$0.96	$0.95	$0.95	4,547,200
December 26 1984	$0.96	$0.96	$0.95	$0.96	2,924,800
December 24 1984	$0.96	$0.97	$0.96	$0.96	1,673,600
December 21 1984	$0.96	$0.97	$0.94	$0.96	5,939,200
December 20 1984	$0.97	$0.98	$0.97	$0.97	4,249,600
December 19 1984	$0.98	$0.99	$0.97	$0.98	11,907,200
December 18 1984	$0.97	$0.98	$0.96	$0.98	15,417,600
December 17 1984	$0.95	$0.96	$0.95	$0.96	3,947,200
December 14 1984	$0.94	$0.96	$0.94	$0.95	4,296,000
December 13 1984	$0.94	$0.95	$0.93	$0.94	6,508,800
December 12 1984	$0.95	$0.96	$0.94	$0.94	9,867,200
December 11 1984	$0.92	$0.95	$0.92	$0.95	14,046,400
December 10 1984	$0.91	$0.94	$0.90	$0.92	6,073,600
December 07 1984	$0.94	$0.94	$0.91	$0.91	5,001,600
December 06 1984	$0.93	$0.94	$0.93	$0.93	4,126,400
December 05 1984	$0.95	$0.95	$0.93	$0.94	2,206,400
December 04 1984	$0.95	$0.96	$0.94	$0.95	6,001,600
December 03 1984	$0.94	$0.95	$0.94	$0.94	4,646,400
November 30 1984	$0.93	$0.94	$0.93	$0.94	2,990,400
November 29 1984	$0.94	$0.95	$0.93	$0.94	3,635,200
November 28 1984	$0.97	$0.97	$0.94	$0.95	7,313,600
November 27 1984	$0.95	$0.97	$0.94	$0.96	11,115,200
November 26 1984	$0.95	$0.96	$0.94	$0.95	4,678,400