On December 31, 1985, International Business Machines (IBM) had a market capitalization of $31.6B, based on 2.45B shares at a price of $12.86.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 31 1985 | $12.86 | 3,866,434 | 2,454,832,000 | $31,566,193,721.60 |
December 30 1985 | $13.09 | 3,987,352 | 2,454,832,000 | $32,124,422,518.40 |
December 27 1985 | $12.85 | 3,016,664 | 2,454,832,000 | $31,540,663,468.80 |
December 26 1985 | $12.67 | 2,351,408 | 2,454,832,000 | $31,109,349,486.40 |
December 24 1985 | $12.63 | 4,225,840 | 2,454,832,000 | $31,007,964,924.80 |
December 23 1985 | $12.73 | 5,104,480 | 2,454,832,000 | $31,261,794,553.60 |
December 20 1985 | $12.76 | 8,903,552 | 2,454,832,000 | $31,312,364,092.80 |
December 19 1985 | $12.71 | 4,602,400 | 2,454,832,000 | $31,210,979,531.20 |
December 18 1985 | $12.64 | 6,380,600 | 2,454,832,000 | $31,033,249,694.40 |
December 17 1985 | $12.61 | 7,468,440 | 2,454,832,000 | $30,957,149,902.40 |
December 16 1985 | $12.59 | 6,610,720 | 2,454,832,000 | $30,906,334,880.00 |
December 13 1985 | $12.42 | 7,907,760 | 2,454,832,000 | $30,500,305,667.20 |
December 12 1985 | $12.29 | 5,857,600 | 2,454,832,000 | $30,170,621,729.60 |
December 11 1985 | $12.32 | 8,305,240 | 2,454,832,000 | $30,246,721,521.60 |
December 10 1985 | $12.12 | 8,116,960 | 2,454,832,000 | $29,764,592,516.80 |
December 09 1985 | $11.96 | 6,953,808 | 2,454,832,000 | $29,358,563,304.00 |
December 06 1985 | $11.72 | 6,853,392 | 2,454,832,000 | $28,775,049,737.60 |
December 05 1985 | $11.64 | 7,970,520 | 2,454,832,000 | $28,572,035,131.20 |
December 04 1985 | $11.73 | 5,071,008 | 2,454,832,000 | $28,800,334,507.20 |
December 03 1985 | $11.46 | 3,350,129 | 2,454,832,000 | $28,140,475,665.60 |
December 02 1985 | $11.40 | 2,809,556 | 2,454,832,000 | $27,988,276,081.60 |
November 29 1985 | $11.56 | 2,149,739 | 2,454,832,000 | $28,369,020,524.80 |
November 27 1985 | $11.60 | 4,476,880 | 2,454,832,000 | $28,470,405,086.40 |
November 26 1985 | $11.49 | 2,951,812 | 2,454,832,000 | $28,216,575,457.60 |
November 25 1985 | $11.49 | 2,587,804 | 2,454,832,000 | $28,216,575,457.60 |