Exhibit 99.1
PLEXUS CORP.
NON-GAAP SUUPLEMENTAL INFORMATION
(in thousands, except per share data)
(unaudited)
ROIC Calculation
 
Six Months Ended
 
Three Months Ended
 
Six Months Ended
 
March 29, 2014
 
December 28, 2013
 
March 30, 2013
Operating income
$
40,761
 
 
$
21,761
 
 
$
44,672
 
Restructuring charges
9,650
 
 
3,605
 
 
—
 
Adjusted operating income
$
50,411
 
 
$
25,366
 
 
$
44,672
 
 
x
2

 
x
4

 
x
2

Annualized operating income
100,822
 
 
101,464
 
 
89,344
 
Tax rate
x
9
%
 
x
9
%
 
x
8
%
Tax impact
 
9,074

 
 
9,132

 
 
7,148

Operating income (tax effected)
$
91,748
 
 
$
92,332
 
 
$
82,196
 
 
 
 
 
 
 
 
 
 
Average invested capital
$
650,061
 
 
$
638,697
 
 
$
645,402
 
ROIC
14.1
%
 
14.5
%
 
12.7
%
 
 
 
 
 
 
 
 
 
 
 
 
March 29,
 
December 28,
 
September 28,
 
 
2014
 
2013
 
2013
Equity
 
$
736,493

 
$
722,021

 
$
699,301

Plus:
 
 
 
 
 
 
  Debt—current
 
3,901

 
3,796

 
3,574

  Debt—non-current
 
256,090

 
256,949

 
257,773

Less:
 
 
 
 
 
 
  Cash and cash equivalents
 
(323,695
)
 
(324,156
)
 
(341,865
)
 
 
$
672,789

 
$
658,610

 
$
618,783

 
 
 
 
 
 
 
 
Fiscal 2014 second quarter average invested capital (March 29, 2014, December 28, 2013 and September 28, 2013) was $650,061.
Fiscal 2014 first quarter average invested capital (December 28, 2013 and September 28, 2013) was $638,697.

 
 
March 30,
 
December 29,
 
September 29,
 
 
2013
 
2012
 
2012
Equity
 
$
669,047

 
$
664,515

 
$
649,022

Plus:
 
 
 
 
 
 
  Debt—current
 
2,893

 
10,310

 
10,211

  Debt—non-current
 
258,789

 
259,516

 
260,211

Less:
 
 
 
 
 
 
  Cash and cash equivalents
 
(276,507
)
 
(274,183
)
 
(297,619
)
 
 
$
654,222

 
$
660,158

 
$
621,825

 
 
 
 
 
 
 

Fiscal 2013 second quarter average invested capital (March 30, 2013, December 29, 2012 and September 29, 2012) was $645,402.