Three Months Ended
June 30,

Nine Months Ended
June 30,

2012

2011

2012

2011

Numerator:

Net income attributable to Powell Industries, Inc.

$

12,138

$

73

$

17,804

$

4,237

Denominator:

Weighted average basic shares

11,812

11,740

11,782

11,730

Dilutive effect of stock options and restricted stock units

49

72

52

76

Weighted average diluted shares with assumed conversions

11,861

11,812

11,834

11,806

Net earnings per share:

Basic

$

1.03

$

0.01

$

1.51

$

0.36

Diluted

$

1.02

$

0.01

$

1.50

$

0.36