On December 31, 1990, Microsoft (MSFT) had a market capitalization of $4.8B, based on 7.53B shares at a price of $0.64.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 1990 | $0.64 | 960,004,800 | 7,526,666,700 | $4,832,120,021.40 |
November 1990 | $0.62 | 1,253,152,800 | 7,526,666,700 | $4,639,437,353.88 |
October 1990 | $0.54 | 2,198,116,800 | 7,526,666,700 | $4,093,754,018.13 |
September 1990 | $0.54 | 1,270,843,200 | 8,760,000,000 | $4,708,500,000.00 |
August 1990 | $0.52 | 1,983,837,600 | 8,760,000,000 | $4,596,372,000.00 |
July 1990 | $0.57 | 1,548,979,200 | 8,760,000,000 | $4,969,548,000.00 |
June 1990 | $0.65 | 1,165,960,800 | 8,004,571,400 | $5,190,164,095.76 |
May 1990 | $0.62 | 1,634,767,200 | 8,004,571,400 | $4,985,247,067.92 |
April 1990 | $0.49 | 1,200,837,600 | 8,004,571,400 | $3,960,661,928.72 |
March 1990 | $0.47 | 1,717,819,200 | 7,520,000,000 | $3,552,448,000.00 |
February 1990 | $0.42 | 1,429,344,000 | 7,520,000,000 | $3,168,176,000.00 |
January 1990 | $0.39 | 2,380,968,000 | 7,520,000,000 | $2,967,392,000.00 |
December 1989 | $0.37 | 1,460,664,000 | 7,450,000,000 | $2,764,695,000.00 |
November 1989 | $0.37 | 1,835,870,400 | 7,450,000,000 | $2,764,695,000.00 |
October 1989 | $0.35 | 2,608,992,000 | 7,450,000,000 | $2,597,815,000.00 |
September 1989 | $0.29 | 1,284,523,200 | 7,911,504,000 | $2,311,741,468.80 |
August 1989 | $0.25 | 1,380,729,600 | 7,911,504,000 | $1,982,622,902.40 |
July 1989 | $0.23 | 1,221,019,200 | 7,911,504,000 | $1,847,336,184.00 |
June 1989 | $0.23 | 1,072,584,000 | 7,852,512,000 | $1,775,452,963.20 |
May 1989 | $0.26 | 1,258,977,600 | 7,852,512,000 | $2,026,733,347.20 |
April 1989 | $0.24 | 1,134,820,800 | 7,852,512,000 | $1,871,253,609.60 |
March 1989 | $0.21 | 3,058,704,000 | 7,799,744,000 | $1,659,785,523.20 |
February 1989 | $0.25 | 1,802,145,600 | 7,799,744,000 | $1,979,575,027.20 |
January 1989 | $0.25 | 1,375,084,800 | 7,799,744,000 | $1,984,254,873.60 |
December 1988 | $0.23 | 1,030,464,000 | 7,752,544,000 | $1,761,377,996.80 |
