Stock-Based Compensation (Tables)

6 Months Ended

Jul. 04, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Plans Activity

A summary of activity under Nucor’s stock option plans for the first six months of 2015 is as follows (in thousands, except year and per share amounts):

	Shares			Weighted - Average Exercise Price		Weighted - Average Remaining Contractual Life		Aggregate Intrinsic Value
Number of shares under option:
Outstanding at beginning of year		2,422		$	42.39
Granted		700		$	47.59
Exercised		(10	)	$	42.34			$	66
Canceled		—			—
Outstanding at July 4, 2015		3,112		$	43.56		7.7 years	$	7,526
Options exercisable at July 4, 2015		1,551		$	39.49		6.2 years	$	7,526

Schedule of Grant Date Fair Value Black-Scholes Option-Pricing Model Assumptions

For the 2015 stock option grant, the grant date fair value of $11.71 per share was calculated using the Black-Scholes option-pricing model with the following assumptions:

Exercise price	$	47.59
Expected dividend yield		3.13	%
Expected stock price volatility		33.32	%
Risk-free interest rate		1.86	%
Expected life (years)		6.5

Summary of Nucor's Restricted Stock Unit Activity

A summary of Nucor’s RSU activity for the first six months of 2015 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock units:
Unvested at beginning of year		1,012		$	45.98
Granted		790		$	47.59
Vested		(731	)	$	44.92
Canceled		(9	)	$	46.01
Unvested at July 4, 2015		1,062		$	47.91
Shares reserved for future grants (stock options and RSUs)		10,343

Summary of Nucor's Restricted Stock Activity under AIP and LTIP

A summary of Nucor’s restricted stock activity under the AIP and the LTIP for the first six months of 2015 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock awards and units:
Unvested at beginning of year		65		$	48.20
Granted		136		$	47.07
Vested		(134	)	$	47.11
Canceled		—			—
Unvested at July 4, 2015		67		$	48.08
Shares reserved for future grants		975