EXHIBIT 11

DUCOMMUN INCORPORATED AND SUBSIDIARIES

RECONCILIATION OF THE NUMERATORS AND DENOMINATORS OF

THE BASIC AND DILUTED EARNINGS PER SHARE COMPUTATIONS

	For the Quarter Ended September 29, 2007
	Income (Numerator)		Shares (Denominator)	Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	5,832,000	10,409,000	$	0.56
Effect of Dilutive Securities
Stock Options		—	151,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	5,832,000	10,560,000	$	0.55
	For the Quarter Ended September 30, 2006
	Income (Numerator)		Shares (Denominator)	Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	4,099,000	10,231,000	$	0.40
Effect of Dilutive Securities
Stock Options		—	61,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	4,099,000	10,292,000	$	0.40

DUCOMMUN INCORPORATED AND SUBSIDIARIES

RECONCILIATION OF THE NUMERATORS AND DENOMINATORS OF

THE BASIC AND DILUTED EARNINGS PER SHARE COMPUTATIONS

	For the Nine Months Ended September 29, 2007
	Income (Numerator)		Shares (Denominator)	Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	14,203,000	10,357,000	$	1.37
Effect of Dilutive Securities
Stock Options		—	83,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	14,203,000	10,440,000	$	1.36
	For the Nine Months Ended September 30, 2006
	Income (Numerator)		Shares (Denominator)	Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	10,029,000	10,195,000	$	0.98
Effect of Dilutive Securities
Stock Options		—	92,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	10,029,000	10,287,000	$	0.97