Sorry, available market cap data for HP (HPQ) starts on July 1, 1985. HP (HPQ) has a market capitalization of $32.5B, based on 971M shares at a price of $33.45 (up 0.6% on Tuesday).

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
December 31 1970	$0.07	$0.07	$0.07	$0.07	408,691
December 30 1970	$0.07	$0.07	$0.07	$0.07	1,888,435
December 29 1970	$0.07	$0.07	$0.07	$0.07	2,748,096
December 28 1970	$0.07	$0.07	$0.07	$0.07	493,248
December 24 1970	$0.07	$0.07	$0.07	$0.07	2,874,931
December 23 1970	$0.07	$0.07	$0.07	$0.07	563,712
December 22 1970	$0.07	$0.07	$0.07	$0.07	1,522,022
December 21 1970	$0.07	$0.07	$0.07	$0.07	1,902,528
December 18 1970	$0.07	$0.07	$0.07	$0.07	10,950,106
December 17 1970	$0.07	$0.07	$0.07	$0.07	3,227,251
December 16 1970	$0.07	$0.07	$0.07	$0.07	1,451,558
December 15 1970	$0.07	$0.07	$0.07	$0.07	3,114,509
December 14 1970	$0.07	$0.07	$0.07	$0.07	3,903,706
December 11 1970	$0.07	$0.07	$0.07	$0.07	5,679,398
December 10 1970	$0.07	$0.07	$0.07	$0.07	6,384,038
December 09 1970	$0.07	$0.07	$0.07	$0.07	2,719,910
December 08 1970	$0.07	$0.08	$0.07	$0.07	8,286,566
December 07 1970	$0.07	$0.07	$0.07	$0.07	7,130,957
December 04 1970	$0.06	$0.07	$0.06	$0.07	12,443,942
December 03 1970	$0.06	$0.07	$0.06	$0.06	7,567,834
December 02 1970	$0.06	$0.06	$0.06	$0.06	4,749,274
December 01 1970	$0.06	$0.06	$0.06	$0.06	2,564,890
November 30 1970	$0.06	$0.06	$0.06	$0.06	5,947,162
November 27 1970	$0.06	$0.06	$0.06	$0.06	1,324,723
November 25 1970	$0.06	$0.06	$0.06	$0.06	1,169,702