On December 31, 1987, Microsoft (MSFT) had a market capitalization of $1.8B, 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 | $1,754,730,265.60 |
December 30 1987 | $0.24 | 70,704,000 | 7,583,104,000 | $1,803,262,131.20 |
December 29 1987 | $0.23 | 79,459,200 | 7,583,104,000 | $1,763,071,680.00 |
December 28 1987 | $0.22 | 50,716,800 | 7,583,104,000 | $1,657,666,534.40 |
December 24 1987 | $0.23 | 12,672,000 | 7,583,104,000 | $1,722,881,228.80 |
December 23 1987 | $0.23 | 60,710,400 | 7,583,104,000 | $1,722,881,228.80 |
December 22 1987 | $0.22 | 41,774,400 | 7,583,104,000 | $1,698,615,296.00 |
December 21 1987 | $0.22 | 51,163,200 | 7,583,104,000 | $1,666,007,948.80 |
December 18 1987 | $0.22 | 52,488,000 | 7,583,104,000 | $1,681,932,467.20 |
December 17 1987 | $0.22 | 94,017,600 | 7,583,104,000 | $1,681,932,467.20 |
December 16 1987 | $0.23 | 105,537,600 | 7,583,104,000 | $1,754,730,265.60 |
December 15 1987 | $0.22 | 112,219,200 | 7,583,104,000 | $1,657,666,534.40 |
December 14 1987 | $0.22 | 95,112,000 | 7,583,104,000 | $1,641,742,016.00 |
December 11 1987 | $0.20 | 72,475,200 | 7,583,104,000 | $1,552,261,388.80 |
December 10 1987 | $0.20 | 165,600,000 | 7,583,104,000 | $1,536,336,870.40 |
December 09 1987 | $0.20 | 83,793,600 | 7,583,104,000 | $1,496,146,419.20 |
December 08 1987 | $0.20 | 112,521,600 | 7,583,104,000 | $1,536,336,870.40 |
December 07 1987 | $0.18 | 66,211,200 | 7,583,104,000 | $1,399,082,688.00 |
December 04 1987 | $0.18 | 121,752,000 | 7,583,104,000 | $1,358,892,236.80 |
December 03 1987 | $0.17 | 127,670,400 | 7,583,104,000 | $1,305,810,508.80 |
December 02 1987 | $0.19 | 68,515,200 | 7,583,104,000 | $1,423,348,620.80 |
December 01 1987 | $0.19 | 73,540,800 | 7,583,104,000 | $1,415,007,206.40 |
November 30 1987 | $0.19 | 164,160,000 | 7,583,104,000 | $1,447,614,553.60 |
November 27 1987 | $0.19 | 18,316,800 | 7,583,104,000 | $1,463,539,072.00 |
November 25 1987 | $0.20 | 32,155,200 | 7,583,104,000 | $1,487,805,004.80 |
