The table below provides, for the periods indicated, information pertaining to the calculation of income (loss) per share, common stock equivalents, weighted average number of anti-dilutive option and shares issued (amounts in thousands). | | | | | | | | | | | | | | Six months ended April 30, | | Three months ended April 30, | | 2012 | | 2011 | | 2012 | | 2011 | Basic weighted-average shares | 166,652 |
| | 166,794 |
| | 166,994 |
| | 166,910 |
| Common stock equivalents (a) | 1,169 |
| |
|
| | 1,541 |
| |
|
| Diluted weighted-average shares | 167,821 |
| | 166,794 |
| | 168,535 |
| | 166,910 |
| Common stock equivalents excluded from diluted weighted-average shares due to anti-dilutive effect (a) |
|
| | 1,537 |
| |
|
| | 1,630 |
| Weighted average number of anti-dilutive options (b) | 5,355 |
| | 7,446 |
| | 3,983 |
| | 6,509 |
| Shares issued under stock incentive and employee stock purchase plans | 1,603 |
| | 513 |
| | 661 |
| | 100 |
|
| | (a) | Common stock equivalents represent the dilutive effect of outstanding in-the-money stock options and Stock Price -Based RSUs whose Target Price criteria has been met. For the six-month and three-month periods ended April 30, 2011, there were no incremental shares attributed to outstanding options to purchase common stock because the Company had a net loss in the periods and any incremental shares would be anti-dilutive. |
| | (b) | Based upon the average closing price of the Company’s common stock on the NYSE for the period. |
|