Information regarding the Company’s significant accounting policies is contained in Note 2, “Summary of significant accounting policies,” to the financial statements in the Company’s Annual Report on Form 10-K for the fiscal year ended January 28, 2012. Presented below in this and the following notes is supplemental information that should be read in conjunction with “Notes to Financial Statements” in the Annual Report.

Fiscal quarter

The Company’s quarterly periods are the 13 weeks ending on the Saturday closest to April 30, July 31, October 31, and January 31. The Company’s third quarters in fiscal 2012 and 2011 ended on October 27, 2012 and October 29, 2011, respectively.

Share-based compensation

The Company measures share-based compensation cost on the grant date, based on the fair value of the award, and recognizes the expense over the requisite service period for awards expected to vest. The Company estimated the grant date fair value of stock options using a Black-Scholes valuation model using the following assumptions for the periods indicated:

The Company granted 213 and 595 stock options during the 39 weeks ended October 27, 2012 and October 29, 2011, respectively. The weighted-average grant date fair value of these options was $45.84 and $34.74, respectively.

The Company recorded stock compensation expense of $3,375 and $3,027 for the 13 weeks ended October 27, 2012 and October 29, 2011, respectively. The Company recorded stock compensation expense of $9,721 and $8,223 for the 39 weeks ended October 27, 2012 and October 29, 2011, respectively. At October 27, 2012, there was approximately $32,340 of unrecognized compensation expense related to unvested options and restricted stock.