On December 31, 1987, Microsoft (MSFT) had a market capitalization of $1.7B, based on 7.58B shares at a price of $0.23.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 31 1987 | $0.23 | 61,545,600 | 7,583,104,000 | $1,734,255,884.80 |
December 30 1987 | $0.24 | 70,704,000 | 7,583,104,000 | $1,782,787,750.40 |
December 29 1987 | $0.23 | 79,459,200 | 7,583,104,000 | $1,742,597,299.20 |
December 28 1987 | $0.22 | 50,716,800 | 7,583,104,000 | $1,638,708,774.40 |
December 24 1987 | $0.22 | 12,672,000 | 7,583,104,000 | $1,702,406,848.00 |
December 23 1987 | $0.22 | 60,710,400 | 7,583,104,000 | $1,702,406,848.00 |
December 22 1987 | $0.22 | 41,774,400 | 7,583,104,000 | $1,678,899,225.60 |
December 21 1987 | $0.22 | 51,163,200 | 7,583,104,000 | $1,646,291,878.40 |
December 18 1987 | $0.22 | 52,488,000 | 7,583,104,000 | $1,662,216,396.80 |
December 17 1987 | $0.22 | 94,017,600 | 7,583,104,000 | $1,662,216,396.80 |
December 16 1987 | $0.23 | 105,537,600 | 7,583,104,000 | $1,734,255,884.80 |
December 15 1987 | $0.22 | 112,219,200 | 7,583,104,000 | $1,638,708,774.40 |
December 14 1987 | $0.21 | 95,112,000 | 7,583,104,000 | $1,622,784,256.00 |
December 11 1987 | $0.20 | 72,475,200 | 7,583,104,000 | $1,534,820,249.60 |
December 10 1987 | $0.20 | 165,600,000 | 7,583,104,000 | $1,518,895,731.20 |
December 09 1987 | $0.20 | 83,793,600 | 7,583,104,000 | $1,478,705,280.00 |
December 08 1987 | $0.20 | 112,521,600 | 7,583,104,000 | $1,518,895,731.20 |
December 07 1987 | $0.18 | 66,211,200 | 7,583,104,000 | $1,382,399,859.20 |
December 04 1987 | $0.18 | 121,752,000 | 7,583,104,000 | $1,342,967,718.40 |
December 03 1987 | $0.17 | 127,670,400 | 7,583,104,000 | $1,290,644,300.80 |
December 02 1987 | $0.19 | 68,515,200 | 7,583,104,000 | $1,406,665,792.00 |
December 01 1987 | $0.18 | 73,540,800 | 7,583,104,000 | $1,398,324,377.60 |
November 30 1987 | $0.19 | 164,160,000 | 7,583,104,000 | $1,430,931,724.80 |
November 27 1987 | $0.19 | 18,316,800 | 7,583,104,000 | $1,446,856,243.20 |
November 25 1987 | $0.19 | 32,155,200 | 7,583,104,000 | $1,470,363,865.60 |