apple market cap 1999 to 2012

On December 31, 2012, Apple (AAPL) had a market capitalization of $429B, based on 26.52B shares at a price of $16.17.

DATE CLOSE VOLUME OUTSTANDING MARKET CAP
December 2012
$16.17
12,132,752,800
26,522,000,000
$428,990,697,800.00
November 2012
$17.79
12,929,851,200
26,522,000,000
$471,805,162,400.00
October 2012
$18.01
12,142,830,000
26,522,000,000
$477,714,264,000.00
September 2012
$20.18
9,199,005,200
26,470,000,000
$534,265,186,000.00
August 2012
$20.13
8,276,206,400
26,470,000,000
$532,777,572,000.00
July 2012
$18.40
8,909,650,400
26,470,000,000
$487,053,294,000.00
June 2012
$17.59
7,855,825,600
26,518,000,000
$466,557,692,000.00
May 2012
$17.41
11,106,345,600
26,518,000,000
$461,548,441,800.00
April 2012
$17.59
15,598,990,400
26,518,000,000
$466,541,781,200.00
March 2012
$18.06
15,584,338,000
26,457,000,000
$477,879,562,500.00
February 2012
$16.34
11,368,554,400
26,457,000,000
$432,360,294,000.00
January 2012
$13.75
6,859,854,400
26,457,000,000
$363,844,601,100.00
December 2011
$12.20
6,306,532,400
26,364,000,000
$321,675,073,200.00
November 2011
$11.51
8,963,701,600
26,364,000,000
$303,565,641,600.00
October 2011
$12.19
13,141,427,600
26,364,000,000
$321,501,070,800.00
September 2011
$11.49
11,977,448,000
26,226,000,000
$301,284,288,000.00
August 2011
$11.59
16,142,599,200
26,226,000,000
$304,056,376,200.00
July 2011
$11.76
10,653,946,800
26,226,000,000
$308,520,041,400.00
June 2011
$10.11
9,263,850,400
26,259,000,000
$265,546,763,400.00
May 2011
$10.48
6,912,060,400
26,259,000,000
$275,168,061,000.00
April 2011
$10.55
9,253,829,200
26,259,000,000
$276,985,183,800.00
March 2011
$10.50
11,306,458,800
26,206,000,000
$275,149,897,000.00
February 2011
$10.64
9,295,949,600
26,206,000,000
$278,858,046,000.00
January 2011
$10.22
10,841,535,600
26,206,000,000
$267,893,455,600.00
December 2010
$9.72
6,973,234,800
26,128,000,000
$253,904,065,600.00