On December 31, 1991, International Business Machines (IBM) had a market capitalization of $20.5B, based on 2.15B shares at a price of $9.54.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 31 1991 | $9.54 | 7,976,796 | 2,150,000,000 | $20,519,385,000.00 |
December 30 1991 | $9.69 | 8,142,901 | 2,150,000,000 | $20,836,510,000.00 |
December 27 1991 | $9.58 | 6,447,544 | 2,150,000,000 | $20,606,030,000.00 |
December 26 1991 | $9.46 | 5,141,299 | 2,150,000,000 | $20,346,525,000.00 |
December 24 1991 | $9.46 | 7,193,133 | 2,150,000,000 | $20,346,525,000.00 |
December 23 1991 | $9.46 | 9,798,091 | 2,150,000,000 | $20,346,525,000.00 |
December 20 1991 | $9.20 | 13,486,287 | 2,150,000,000 | $19,770,110,000.00 |
December 19 1991 | $9.10 | 7,959,642 | 2,150,000,000 | $19,568,440,000.00 |
December 18 1991 | $9.25 | 7,974,704 | 2,150,000,000 | $19,885,350,000.00 |
December 17 1991 | $9.17 | 6,200,688 | 2,150,000,000 | $19,712,490,000.00 |
December 16 1991 | $9.32 | 5,406,146 | 2,150,000,000 | $20,029,615,000.00 |
December 13 1991 | $9.44 | 7,444,591 | 2,150,000,000 | $20,288,905,000.00 |
December 12 1991 | $9.50 | 8,757,530 | 2,150,000,000 | $20,432,955,000.00 |
December 11 1991 | $9.41 | 10,837,397 | 2,150,000,000 | $20,231,285,000.00 |
December 10 1991 | $9.25 | 20,949,288 | 2,150,000,000 | $19,885,350,000.00 |
December 09 1991 | $9.13 | 16,297,098 | 2,150,000,000 | $19,626,060,000.00 |
December 06 1991 | $9.54 | 11,282,574 | 2,150,000,000 | $20,519,385,000.00 |
December 05 1991 | $9.68 | 7,919,475 | 2,150,000,000 | $20,807,700,000.00 |
December 04 1991 | $9.65 | 9,790,560 | 2,150,000,000 | $20,750,080,000.00 |
December 03 1991 | $9.79 | 6,542,102 | 2,150,000,000 | $21,038,180,000.00 |
December 02 1991 | $9.89 | 9,823,195 | 2,150,000,000 | $21,268,875,000.00 |
November 29 1991 | $9.92 | 6,871,802 | 2,150,000,000 | $21,326,495,000.00 |
November 27 1991 | $10.11 | 7,547,518 | 2,150,000,000 | $21,729,835,000.00 |
November 26 1991 | $10.50 | 8,149,177 | 2,150,000,000 | $22,565,755,000.00 |
November 25 1991 | $10.20 | 4,449,684 | 2,150,000,000 | $21,931,720,000.00 |
