The following table sets forth the computation of basic and diluted earnings per common share (dollars in thousands, except per share amounts):



	Fiscal Year Ended		Six Months Ended		Fiscal Year Ended
	January 26, 2019		January 27, 2018		July 29, 2017		July 30, 2016
Net income available to common stockholders (numerator)	$	62,907	$	68,835	$	157,217	$	128,740

Weighted-average number of common shares (denominator)	31,250,376		31,059,140		31,351,367		32,315,636

Basic earnings per common share	$	2.01	$	2.22	$	5.01	$	3.98

Weighted-average number of common shares	31,250,376		31,059,140		31,351,367		32,315,636
Potential shares of common stock arising from stock options, and unvested restricted share units⁽¹⁾	555,993		778,411		633,364		800,119
Potential shares of common stock issuable on conversion of 0.75% convertible senior notes due 2021⁽²⁾	183,799		217,394		—		—
Total shares-diluted (denominator)	31,990,168		32,054,945		31,984,731		33,115,755

Diluted earnings per common share	$	1.97	$	2.15	$	4.92	$	3.89

Anti-dilutive weighted shares excluded from the calculation of earnings per common share:
Stock-based awards	130,779		93,117		73,830		65,514
0.75% convertible senior notes due 2021	4,821,935		4,788,340		5,005,734		5,005,734
Warrants	5,005,734		5,005,734		5,005,734		5,005,734
Total	9,958,448		9,887,191		10,085,298		10,076,982

⁽¹⁾The Company adopted ASU 2016-09 on a prospective basis effective July 30, 2017, the first day of the 2018 transition period. Under the amended guidance, excess tax benefits and tax deficiencies arising from the vesting and exercise of share-based awards are no longer included in the hypothetical proceeds used to repurchase shares when computing diluted earnings per common share under the treasury stock method. As a result, diluted shares used in computing diluted earnings per common share for the 2018 transition period increased by approximately 177,575 shares.

⁽²⁾Under the treasury stock method, the convertible senior notes will have a dilutive impact on earnings per common share if the Company’s average stock price for the period exceeds the $96.89 per share conversion price for the convertible senior notes. The warrants associated with the Company’s convertible senior notes will have a dilutive impact on earnings per common share if the Company’s average stock price for the period exceeds the $130.43 per share warrant strike price. During the first quarter of fiscal 2019, the second quarter of fiscal 2019, and the second quarter of the 2018 transition period, the Company’s average stock price of $110.46, $99.27, and $106.11, respectively, each exceeded the conversion price for the convertible senior notes. As a result, shares presumed to be issuable under the convertible senior notes that were dilutive during each period are included in the calculation of diluted earnings per share for fiscal 2019 and the 2018 transition period. As the Company’s average stock price did not exceed the strike price for the warrants, the underlying common shares were anti-dilutive as reflected in the table above.