On December 30, 2011, Interactive Brokers (IBKR) had a market capitalization of $643.4M, based on 182.31M shares at a price of $3.53.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 30 2011 | $3.53 | 797,008 | 182,308,000 | $643,401,393.60 |
December 29 2011 | $3.54 | 609,524 | 182,308,000 | $645,552,628.00 |
December 28 2011 | $3.53 | 921,012 | 182,308,000 | $643,401,393.60 |
December 27 2011 | $3.53 | 729,204 | 182,308,000 | $644,258,241.20 |
December 23 2011 | $3.55 | 512,444 | 182,308,000 | $647,284,554.00 |
December 22 2011 | $3.54 | 876,068 | 182,308,000 | $645,990,167.20 |
December 21 2011 | $3.54 | 1,366,308 | 182,308,000 | $645,990,167.20 |
December 20 2011 | $3.50 | 1,711,740 | 182,308,000 | $638,661,385.60 |
December 19 2011 | $3.42 | 1,376,436 | 182,308,000 | $622,727,666.40 |
December 16 2011 | $3.47 | 2,252,256 | 182,308,000 | $632,645,221.60 |
December 15 2011 | $3.42 | 3,443,088 | 182,308,000 | $623,602,744.80 |
December 14 2011 | $3.45 | 3,332,928 | 182,308,000 | $628,324,522.00 |
December 13 2011 | $3.53 | 1,538,356 | 182,308,000 | $642,982,085.20 |
December 12 2011 | $3.52 | 1,782,960 | 182,308,000 | $640,812,620.00 |
December 09 2011 | $3.58 | 1,624,104 | 182,308,000 | $652,443,870.40 |
December 08 2011 | $3.52 | 1,372,260 | 182,308,000 | $641,687,698.40 |
December 07 2011 | $3.59 | 1,363,512 | 182,308,000 | $653,738,257.20 |
December 06 2011 | $3.56 | 1,507,948 | 182,308,000 | $648,578,940.80 |
December 05 2011 | $3.57 | 1,647,392 | 182,308,000 | $650,292,636.00 |
December 02 2011 | $3.56 | 2,689,756 | 182,308,000 | $648,578,940.80 |
December 01 2011 | $3.49 | 1,876,224 | 182,308,000 | $635,653,303.60 |
November 30 2011 | $3.51 | 3,239,368 | 182,308,000 | $640,393,311.60 |
November 29 2011 | $3.46 | 2,190,064 | 182,308,000 | $630,913,295.60 |
November 28 2011 | $3.42 | 1,730,768 | 182,308,000 | $622,946,436.00 |
November 25 2011 | $3.34 | 571,176 | 182,308,000 | $609,182,182.00 |
