

	2017		2016		2015
(in thousands, except per share data)	Common Stock		Common Stock		Common Stock
Basic EPS:
Net income attributable to TSYS common shareholders	$	586,185		319,638		364,044
Less income allocated to nonvested awards		(1,373)		(1,557)		(3,164)
Net income allocated to common stock for EPS calculation (a)	$	584,812		318,081		360,880
Average common shares outstanding (b)		183,309		182,744		182,465
Basic EPS (a)/(b)	$	3.19		1.74		1.98

Diluted EPS:
Net income attributable to TSYS common shareholders	$	586,185		319,638		364,044
Less income allocated to nonvested awards		(1,373)		(1,557)		(3,148)
Add income allocated to nonvested awards1		1,373		1,557		-
Net income allocated to common stock for EPS calculation (c)	$	586,185		319,638		360,896
Average common shares outstanding		183,309		182,744		182,465
Increase due to assumed issuance of shares related to common equivalent shares outstanding		1,162		813		1,157
Average nonvested awards1		959		891		-
Average common and common equivalent shares outstanding (d)		185,430		184,448		183,622
Diluted EPS (c)/(d)	$	3.16		1.73		1.97

In accordance with the diluted EPS guidance under the two-class method, the Company uses the approach-either the treasury stock method or the two-class method assuming a participating security is not exercised- that is more dilutive. In 2017 and 2016, the Company used the two-class method. In 2015, the Company used the treasury stock method.



	2017		2016		2015
(in thousands, except per share data)	Participating Securities		Participating Securities		Participating Securities
Basic EPS:
Net income allocated to nonvested awards (a)	$	1,373		1,557		3,164
Nonvested awards (b)		435		911		1,617
Basic EPS (a)/(b)	$	3.16		1.71		1.96

Diluted EPS:
Net income allocated to nonvested awards (c)	$	1,366		1,552		3,148
Average common and common equivalent shares outstanding (d)		435		911		1,617
Diluted EPS (c)/(d)	$	3.14		1.70		1.95