Sorry, available market cap data for Amazon (AMZN) starts on January 2, 2009. Amazon (AMZN) has a market capitalization of $2.2T, based on 10.6B shares at a price of $212.28 (up 1.5% on Friday).

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
January 31 2007	$1.85	$1.91	$1.84	$1.88	144,418,498
January 30 2007	$1.86	$1.87	$1.83	$1.85	96,259,479
January 29 2007	$1.84	$1.87	$1.83	$1.87	147,900,158
January 26 2007	$1.86	$1.86	$1.82	$1.84	82,778,719
January 25 2007	$1.90	$1.91	$1.84	$1.85	134,895,098
January 24 2007	$1.83	$1.87	$1.83	$1.86	104,630,919
January 23 2007	$1.85	$1.85	$1.82	$1.82	106,273,919
January 22 2007	$1.88	$1.90	$1.84	$1.85	166,333,838
January 19 2007	$1.83	$1.87	$1.83	$1.85	121,919,118
January 18 2007	$1.88	$1.88	$1.84	$1.85	180,544,297
January 17 2007	$1.94	$1.95	$1.89	$1.89	100,421,539
January 16 2007	$1.92	$1.94	$1.90	$1.93	112,758,678
January 12 2007	$1.87	$1.91	$1.86	$1.91	89,303,199
January 11 2007	$1.86	$1.90	$1.86	$1.87	129,310,378
January 10 2007	$1.87	$1.89	$1.85	$1.86	129,531,198
January 09 2007	$1.88	$1.90	$1.87	$1.89	114,057,018
January 08 2007	$1.91	$1.92	$1.86	$1.88	134,320,458
January 05 2007	$1.94	$1.94	$1.88	$1.92	132,388,398
January 04 2007	$1.93	$1.96	$1.91	$1.95	125,840,938
January 03 2007	$1.93	$1.95	$1.90	$1.94	248,028,397