Exhibit 11.01

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

For the Three Months Ended March 31, 2001 and 2000
(Dollars in Thousands, Except Per Share Data)

		Three Months Ended
		March 31
		2001			2000
Net (loss) earnings		$	(4,562	)	$	7,330
Weighted average number of common shares outstanding:
	Basic		47,073,007			46,725,456
	Effect of dilutive securities		204,394			159,602
	Diluted		47,277,401			46,885,058
Net (loss) earnings per common share
	Basic	$	(0.10	)	$	0.16
	Diluted	$	(0.10	)	$	0.16

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