On December 31, 1999, Biogen (BIIB) had a market capitalization of $15.5B, based on 473.14M shares at a price of $32.75.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 1999 | $32.75 | 96,492,000 | 473,136,000 | $15,495,204,000.00 |
November 1999 | $21.13 | 64,711,800 | 473,136,000 | $9,994,998,000.00 |
October 1999 | $19.36 | 84,410,400 | 473,136,000 | $9,162,089,385.60 |
September 1999 | $15.67 | 151,548,000 | 953,846,000 | $14,948,579,127.40 |
August 1999 | $21.18 | 71,535,600 | 953,846,000 | $20,199,692,126.60 |
July 1999 | $16.52 | 65,609,400 | 953,846,000 | $15,758,298,996.80 |
June 1999 | $12.84 | 51,964,200 | 930,000,000 | $11,944,734,000.00 |
May 1999 | $8.41 | 37,639,200 | 930,000,000 | $7,817,859,000.00 |
April 1999 | $8.46 | 53,669,400 | 930,000,000 | $7,866,219,000.00 |
March 1999 | $8.56 | 63,861,000 | 945,517,000 | $8,095,989,312.50 |
February 1999 | $7.22 | 48,001,200 | 945,517,000 | $6,825,498,119.60 |
January 1999 | $8.42 | 60,523,200 | 945,517,000 | $7,958,132,933.90 |
December 1998 | $7.83 | 106,890,600 | 945,517,000 | $7,406,518,316.10 |
November 1998 | $5.60 | 29,860,800 | 945,517,000 | $5,298,866,371.40 |
October 1998 | $4.98 | 60,076,800 | 945,517,000 | $4,707,918,246.40 |
September 1998 | $3.96 | 52,588,800 | 902,400,000 | $3,571,969,920.00 |
August 1998 | $3.00 | 49,545,600 | 902,400,000 | $2,707,200,000.00 |
July 1998 | $3.95 | 64,696,200 | 902,400,000 | $3,562,584,960.00 |
June 1998 | $3.93 | 51,937,800 | 942,000,000 | $3,699,328,200.00 |
May 1998 | $5.25 | 54,339,000 | 942,000,000 | $4,945,500,000.00 |
April 1998 | $6.00 | 66,367,800 | 942,000,000 | $5,652,000,000.00 |
March 1998 | $7.38 | 49,689,000 | 926,667,000 | $6,834,169,125.00 |
February 1998 | $7.56 | 41,684,400 | 926,667,000 | $7,007,919,187.50 |
January 1998 | $6.96 | 45,237,000 | 926,667,000 | $6,448,026,986.10 |
December 1997 | $5.73 | 42,278,400 | 926,667,000 | $5,309,060,576.40 |
