
	Three months ended June 30,				Six months ended June 30,
	2017		2016		2017		2016
(in thousands, except per share data)	Common Stock		Common Stock		Common Stock		Common Stock
Basic EPS:
Net income attributable to TSYS common shareholders	$	115,014		69,708		220,882		160,336
Less income allocated to nonvested awards		(252)		(347)		(631)		(850)
Net income allocated to common stock for EPS calculation (a)	$	114,762		69,361		220,251		159,486
Average common shares outstanding (b)		183,741		183,724		183,484		183,489
Basic EPS (a)/(b)	$	0.62		0.38		1.20		0.87

Diluted EPS:
Net income attributable to TSYS common shareholders	$	115,014		69,708		220,882		160,336
Less income allocated to nonvested awards		(252)		(346)		(631)		(847)
Add income allocated to nonvested awards1		252		-		631		-
Net income allocated to common stock for EPS calculation (c)	$	115,014		69,362		220,882		159,489
Average common shares outstanding		183,741		183,724		183,484		183,489
Increase due to assumed issuance of shares related to common equivalent shares outstanding		1,121		874		1,093		846
Average nonvested awards1		425		-		545		-
Average common and common equivalent shares outstanding (d)		185,287		184,598		185,122		184,335
Diluted EPS (c)/(d)	$	0.62		0.38		1.19		0.87


	Three months ended June 30,				Six months ended June 30,
	2017		2016		2017		2016
(in thousands, except per share data)	Participating Securities		Participating Securities		Participating Securities		Participating Securities
Basic EPS:
Net income allocated to nonvested awards (a)	$	252		347	$	631		850
Nonvested awards (b)		412		934		536		989
Basic EPS (a)/(b)	$	0.61		0.37	$	1.18		0.86

Diluted EPS:
Net income allocated to nonvested awards (c)	$	250		346	$	628		847
Average common and common equivalent shares outstanding (d)		412		934		536		989
Diluted EPS (c)/(d)	$	0.61		0.37	$	1.17		0.86

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, the Company used the two-class method. In 2016, the Company used the treasury stock method.