Earnings per Share

We compute basic earnings per share using the weighted average number of shares of common stock

outstanding during the period. We compute diluted earnings per share using the weighted average

number of shares of common stock outstanding plus the effect of dilutive securities. Dilutive securities at any given point in time may consist of outstanding options to purchase common stock and issued and contingently issuable unvested RSUs and PSUs. See Note 7 to these condensed consolidated financial statements for more information regarding RSUs, PSUs and other performance based stock awards. Options for common stock are excluded from the computation of diluted earnings per share if their effect is antidilutive.

The following table presents our weighted average basic and diluted shares for the periods shown:



	Three Months Ended August 31,		Six Months Ended August 31,
(in thousands)	2018	2017	2018	2017
Weighted average shares outstanding, basic	26,359	27,232	26,467	27,154
Incremental shares from share-based compensation arrangements	198	169	145	169
Weighted average shares outstanding, diluted	26,557	27,401	26,612	27,323

Dilutive securities, stock options	164	233	151	243
Dilutive securities, unvested or unsettled stock awards	228	141	114	110
Antidilutive securities	194	300	352	339