EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share data):



	Three Months Ended
	December 30, 2017		December 31, 2016
Numerator:
Net income	$	1,632	$	594
Less: Net income attributable to noncontrolling interests	1		1
Net income attributable to Tyson	1,631		593
Less dividends declared:
Class A	111		86
Class B	24		19
Undistributed earnings	$	1,496	$	488

Class A undistributed earnings	$	1,233	$	403
Class B undistributed earnings	263		85
Total undistributed earnings	$	1,496	$	488
Denominator:
Denominator for basic earnings per share:
Class A weighted average shares	296		297
Class B weighted average shares, and shares under the if-converted method for diluted earnings per share	70		70
Effect of dilutive securities:
Stock options, restricted stock and performance units	5		6
Denominator for diluted earnings per share – adjusted weighted average shares and assumed conversions	371		373

Net income per share attributable to Tyson:
Class A basic	$	4.54	$	1.64
Class B basic	$	4.09	$	1.49
Diluted	$	4.40	$	1.59

Approximately 1 million of our stock-based compensation shares were antidilutive for the three months ended December 30, 2017 and approximately 2 million for the three months ended December 31, 2016. These shares were not included in the diluted earnings per share calculation.

We have two classes of capital stock, Class A stock and Class B stock. Cash dividends cannot be paid to holders of Class B stock unless they are simultaneously paid to holders of Class A stock. The per share amount of cash dividends paid to holders of Class B stock cannot exceed 90% of the cash dividends paid to holders of Class A stock.

We allocate undistributed earnings based upon a 1 to 0.9 ratio per share to Class A stock and Class B stock, respectively. We allocate undistributed earnings based on this ratio due to historical dividend patterns, voting control of Class B shareholders and contractual limitations of dividends to Class B stock.