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 | $1,737,289,126.40 |
December 30 1987 | $0.24 | 70,704,000 | 7,583,104,000 | $1,785,820,992.00 |
December 29 1987 | $0.23 | 79,459,200 | 7,583,104,000 | $1,745,630,540.80 |
December 28 1987 | $0.22 | 50,716,800 | 7,583,104,000 | $1,641,742,016.00 |
December 24 1987 | $0.22 | 12,672,000 | 7,583,104,000 | $1,705,440,089.60 |
December 23 1987 | $0.22 | 60,710,400 | 7,583,104,000 | $1,705,440,089.60 |
December 22 1987 | $0.22 | 41,774,400 | 7,583,104,000 | $1,681,932,467.20 |
December 21 1987 | $0.22 | 51,163,200 | 7,583,104,000 | $1,649,325,120.00 |
December 18 1987 | $0.22 | 52,488,000 | 7,583,104,000 | $1,665,249,638.40 |
December 17 1987 | $0.22 | 94,017,600 | 7,583,104,000 | $1,665,249,638.40 |
December 16 1987 | $0.23 | 105,537,600 | 7,583,104,000 | $1,737,289,126.40 |
December 15 1987 | $0.22 | 112,219,200 | 7,583,104,000 | $1,641,742,016.00 |
December 14 1987 | $0.21 | 95,112,000 | 7,583,104,000 | $1,625,817,497.60 |
December 11 1987 | $0.20 | 72,475,200 | 7,583,104,000 | $1,537,095,180.80 |
December 10 1987 | $0.20 | 165,600,000 | 7,583,104,000 | $1,521,928,972.80 |
December 09 1987 | $0.20 | 83,793,600 | 7,583,104,000 | $1,481,738,521.60 |
December 08 1987 | $0.20 | 112,521,600 | 7,583,104,000 | $1,521,928,972.80 |
December 07 1987 | $0.18 | 66,211,200 | 7,583,104,000 | $1,385,433,100.80 |
December 04 1987 | $0.18 | 121,752,000 | 7,583,104,000 | $1,345,242,649.60 |
December 03 1987 | $0.17 | 127,670,400 | 7,583,104,000 | $1,293,677,542.40 |
December 02 1987 | $0.19 | 68,515,200 | 7,583,104,000 | $1,409,699,033.60 |
December 01 1987 | $0.18 | 73,540,800 | 7,583,104,000 | $1,401,357,619.20 |
November 30 1987 | $0.19 | 164,160,000 | 7,583,104,000 | $1,433,964,966.40 |
November 27 1987 | $0.19 | 18,316,800 | 7,583,104,000 | $1,449,131,174.40 |
November 25 1987 | $0.19 | 32,155,200 | 7,583,104,000 | $1,473,397,107.20 |