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Share Based Compensation (Tables)

12 Months Ended

Dec. 29, 2018

Key assumptions in fair value determination

The ranges of key assumptions used in determining the fair value of options granted during fiscal 2018, 2017, and 2016, as well as a summary of the methodology applied to develop each assumption, are as follows:



	Fiscal Year
	2018		2017		2016
Expected price volatility	26.4 - 27.0%		25.1 - 26.0%		25.5 - 27.9%
Risk-free interest rate	2.5 - 3.0%		1.7 - 1.9%		0.9 - 1.3%
Weighted average expected term (in years)	4.5		4.4		4.4
Forfeiture rate	7.3	%	7.2	%	7.1	%
Dividend yield	1.6	%	1.3	%	0.9	%

Summary of stock option activity

A summary of stock option activity is as follows:



Stock Option Activity	Options		Weighted Average Exercise Price		Weighted Average Fair Value		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value (in thousands)
Outstanding at December 30, 2017	4,998,526		$	68.46			6.9	$	50,145
Granted	693,634		67.81		$	15.02
Exercised	(1,380,136	)	54.55
Canceled	(258,638	)	77.83
Outstanding at December 29, 2018	4,053,386		$	72.49			7.0	$	46,472

Exercisable at December 29, 2018	2,173,274		$	72.32			5.8	$	25,747

Other information relative to option activity

Other information relative to options activity during fiscal 2018, 2017, and 2016 is as follows (in thousands):



	Fiscal Year
	2018		2017		2016
Total fair value of stock options vested	$	18,247	$	15,996	$	15,184
Total intrinsic value of stock options exercised	$	43,476	$	9,237	$	39,696

Restricted stock units activity

A summary of restricted stock unit activity is presented below:



Restricted Stock Unit Activity	Restricted Stock Units		Weighted Average Grant Date Fair Value
Restricted at December 30, 2017	223,230		$	67.92
Granted	309,978		64.00
Exercised	(70,845	)	75.16
Forfeited	(24,293	)	65.84
Restricted at December 29, 2018	438,070		$	64.09

Other information relative to restricted unit activity

Other information relative to restricted stock unit activity during fiscal 2018, 2017, and 2016 is as follows (in thousands):



	Fiscal Year
	2018		2017		2016
Total grant date fair value of restricted stock units vested and issued	$	5,325	$	3,301	$	3,072
Total intrinsic value of restricted stock units vested and issued	$	5,364	$	3,465	$	5,104

Performance-based Share Unit Activity

A summary of performance-based restricted share unit activity is presented below:



Performance-Based Restricted Share Unit Activity	Performance-Based Restricted Share Units	Weighted Average Grant Date Fair Value
Restricted at December 30, 2017	—	$	—
Granted ^(a)	41,310	63.90
Exercised	—	—
Forfeited	—	—
Restricted at December 29, 2018	41,310	$	63.90

^(a)Assumes 100% target level achievement of the relative performance targets. The actual number of shares that will be issued, which may be higher or lower than the target, will be determined by the level of achievement of the relative performance targets.