Share-Based Compensation Share-Based Compensation (Tables)

9 Months Ended

Dec. 31, 2018

The following weighted-average assumptions were used for options granted during the first nine months of fiscal 2019 and 2018:



	Fiscal 2019	Fiscal 2018
Risk-free interest rate	2.64%	2.01%
Expected life of options	6.2 years	5.7 years
Expected dividend yield of stock	1.47%	1.58%
Expected volatility of stock	19.91%	22.08%

A summary of share option activity is as follows:



	Number of Options		Weighted Average Exercise Price		Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at March 31, 2018	2,021,662		$	58.56
Granted	436,121		114.49
Exercised	(191,995	)	40.05
Forfeited	(17,740	)	79.91
Outstanding at December 31, 2018	2,248,048		$	70.83	6.8 years	$	84,291
Exercisable at December 31, 2018	1,307,946		$	56.03	5.5 years	$	66,631

A summary of the non-vested restricted share and restricted share unit activity is presented below:



	Number of Restricted Shares		Number of Restricted Share Units		Weighted-Average Grant Date Fair Value
Non-vested at March 31, 2018	763,201		35,431		$	68.85
Granted	177,558		19,858		104.84
Vested	(233,095	)	(21,540	)	62.12
Forfeited	(30,469	)	—		76.62
Non-vested at December 31, 2018	677,195		33,749		$	80.72

STERIS plc 10-Q