costco market cap in 2018

On December 31, 2018, Costco Wholesale (COST) had a market capitalization of $82B, based on 442.75M shares at a price of $185.19.

DATE CLOSE VOLUME OUTSTANDING MARKET CAP
December 31 2018
$185.19
1,729,400
442,749,000
$81,992,731,584.90
December 28 2018
$183.67
2,037,800
442,749,000
$81,320,550,053.10
December 27 2018
$182.80
2,705,900
442,749,000
$80,934,163,000.80
December 26 2018
$180.57
3,268,800
442,749,000
$79,948,028,153.10
December 24 2018
$172.72
2,031,700
442,749,000
$76,470,456,132.60
December 21 2018
$176.84
5,080,200
442,749,000
$78,293,785,064.40
December 20 2018
$179.21
4,250,900
442,749,000
$79,344,295,616.70
December 19 2018
$183.10
3,369,600
442,749,000
$81,066,987,700.80
December 18 2018
$184.54
3,308,500
442,749,000
$81,702,908,089.50
December 17 2018
$183.84
4,739,400
442,749,000
$81,397,012,805.40
December 14 2018
$188.24
8,822,300
442,749,000
$83,341,079,389.50
December 13 2018
$205.92
2,170,200
442,749,000
$91,169,678,657.70
December 12 2018
$207.09
2,891,400
442,749,000
$91,688,890,410.00
December 11 2018
$205.91
2,466,800
442,749,000
$91,165,649,641.80
December 10 2018
$202.42
2,650,000
442,749,000
$89,620,057,157.70
December 07 2018
$204.42
2,881,900
442,749,000
$90,505,555,157.70
December 06 2018
$212.00
4,029,800
442,749,000
$93,862,345,251.00
December 04 2018
$205.77
3,418,600
442,749,000
$91,105,258,678.20
December 03 2018
$210.98
2,481,500
442,749,000
$93,411,582,494.10
November 30 2018
$210.25
2,764,000
442,749,000
$93,089,571,146.40
November 29 2018
$210.00
1,478,700
442,749,000
$92,976,891,525.90
November 28 2018
$209.40
2,765,600
442,749,000
$92,711,242,125.90
November 27 2018
$202.74
2,369,800
442,749,000
$89,760,895,614.60
November 26 2018
$199.50
2,205,600
442,749,000
$88,328,027,025.90
November 23 2018
$200.05
1,007,500
442,749,000
$88,573,531,346.40