Stock-Based Compensation (Tables)

6 Months Ended

Jun. 29, 2013

Summary of Stock Option Plans Activity

A summary of activity under Nucor’s stock option plans for the first six months of 2013 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		1,543	$	39.03
Granted		546	$	44.51
Exercised		—		—
Canceled		—		—
Outstanding at June 29, 2013		2,089	$	40.47		8.7 years	$	6,612
Options exercisable at June 29, 2013		242	$	41.43		6.9 years	$	457

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

Fair value was calculated using the Black-Scholes option-pricing model with the following assumptions:

Exercise price	$	44.51
Expected dividend yield		3.30	%
Expected stock price volatility		46.94	%
Risk-free interest rate		1.51	%
Expected life (years)		6.5

Summary of Nucor's Restricted Stock Unit Activity

The fair value of the RSUs is determined based on the closing stock price of Nucor’s common stock on the day before the grant. A summary of Nucor’s RSU activity for the first six months of 2013 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock units:
Unvested at beginning of year		1,106		$	40.80
Granted		789		$	44.51
Vested		(744	)	$	42.19
Canceled		(6	)	$	38.14
Unvested at June 29, 2013		1,145		$	42.47
Shares reserved for future grants (stock options and RSUs)		10,503

Summary of Nucor's Restricted Stock Awards and Units Under AIP And LTIP

A summary of Nucor’s restricted stock activity under the AIP and LTIP for the first six months of 2013 is as follows (shares in thousands):

	Shares			Grant Date Fair Value
Restricted stock awards and units:
Unvested at beginning of year		72		$	43.72
Granted		122		$	47.36
Vested		(119	)	$	46.31
Canceled		—			—
Unvested at June 29, 2013		75		$	45.53
Shares reserved for future grants		1,238