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, 2012
	Income (Numerator)		Shares (Denominator)		Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	5,105,000		10,595,000	$	0.48
Effect of Dilutive Securities
Stock Options		—		38,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	5,105,000		10,633,000	$	0.48

	For the Quarter Ended October 1, 2011
	Income (Numerator)		Shares (Denominator)		Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	961,000		10,539,000	$	0.09
Effect of Dilutive Securities
Stock Options		—		92,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	961,000		10,631,000	$	0.09

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, 2012
	Income (Numerator)		Shares (Denominator)		Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	13,002,000		10,575,000	$	1.23
Effect of Dilutive Securities
Stock Options		—		13,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	13,002,000		10,588,000	$	1.23

	For the Nine Months Ended October 1, 2011
	Income (Numerator)		Shares (Denominator)		Per-Share Amount
Basic EPS
Income Available to Common Stockholders	$	911,000		10,534,000	$	0.09
Effect of Dilutive Securities
Stock Options		—		124,000
Diluted EPS
Income Available to Common Stockholders + Assumed Conversions	$	911,000		10,658,000	$	0.09