The Company’s fiscal year is the 52-week or 53-week period ending on the Saturday closest to the last day in October. Fiscal 2018 is a 53-week fiscal year. Fiscal 2017 was a 52-week fiscal year. The Company's interim periods operate on a 4-4-5 fiscal calendar, where each fiscal quarter is comprised of two 4-week periods and one 5-week period, with each week ending on a Saturday. The additional week in fiscal 2018 was included in the first quarter ended February 3, 2018. Therefore, fiscal 2018 included an additional week of operations as compared to fiscal 2017. The Company's fiscal year quarterly financial information for fiscal 2018 and fiscal 2017 include results of operations of Linear from March 10, 2017:



	4Q18		3Q18		2Q18		1Q18		4Q17		3Q17		2Q17		1Q17
Revenue	1,596,586		1,572,679		1,513,053		1,518,624		1,541,170		1,433,902		1,147,982		984,449
Cost of sales	502,932		502,033		479,241		483,434		535,145		667,278		507,539		335,945
Gross margin	1,093,654		1,070,646		1,033,812		1,035,190		1,006,025		766,624		640,443		648,504
% of Revenue	68.5	%	68.1	%	68.3	%	68.2	%	65.3	%	53.5	%	55.8	%	65.9	%
Research and development	295,699		291,642		289,472		288,597		273,746		275,670		235,232		183,954
Selling, marketing, general and administrative	175,396		171,487		172,146		176,908		185,721		183,980		190,686		130,659
Special charges (a)	1,842		1,069		1,089		57,318		—		—		—		49,463
Amortization of intangibles	107,345		107,409		107,129		107,019		98,348		112,153		68,690		18,160
Total operating expenses	580,282		571,607		569,836		629,842		557,815		571,803		494,608		382,236
Operating income	513,372		499,039		463,976		405,348		448,210		194,821		145,835		266,268
% of Revenue	32	%	32	%	31	%	27	%	29	%	14	%	13	%	27	%
Nonoperating (income) expenses:
Interest expense (b)	59,102		61,665		64,792		68,030		63,517		73,073		71,636		42,614
Interest income	(2,791	)	(2,588	)	(1,912	)	(2,092	)	(2,388	)	(5,524	)	(12,421	)	(10,000	)
Other, net	(461	)	(632	)	(451	)	556		5,417		474		(94	)	345
Total nonoperating (income) expense	55,850		58,445		62,429		66,494		66,546		68,023		59,121		32,959
Income before income taxes	457,522		440,594		401,547		338,854		381,664		126,798		86,714		233,309
% of Revenue	29	%	28	%	27	%	22	%	25	%	9	%	8	%	24	%
Provision (benefit) for income taxes (c)	24,557		26,130		21,716		70,682		34,014		57,882		(6,850	)	16,180
Net income	432,965		414,464		379,831		268,172		347,650		68,916		93,564		217,129
% of Revenue	27	%	26	%	25	%	18	%	23	%	5	%	8	%	22	%
Net income allocable to common shares (d)	431,621		412,938		378,299		266,929		345,876		67,935		93,564		217,129
Basic earnings per common share	1.16		1.11		1.02		0.72		0.94		0.18		0.27		0.70
Diluted earnings per common share	1.15		1.10		1.01		0.71		0.93		0.18		0.27		0.69
Shares used to compute earnings per share (in thousands):
Basic	371,074		371,315		370,384		369,093		368,043		367,315		341,316		308,786
Diluted	375,116		375,815		374,778		374,189		372,053		371,159		345,654		313,076
Dividends declared per share	0.48		0.48		0.48		0.45		0.45		0.45		0.45		0.42

a) Represents charges recorded for various restructuring actions. See Note 5, Special Charges, of the Notes to the Consolidated Financial Statements contained in Item 8 of this Annual Report on Form 10-K.

b) Interest expense in fiscal 2017 and 2018 includes interest and fees associated with financing commitments entered into in connection with the Acquisition. See Note 14, Debt, of the Notes to the Consolidated Financial Statements contained in Item 8 of this Annual Report on Form 10-K.

c) Provision for income taxes in the first quarter of fiscal 2018 included the impact related to the Tax Cuts and Jobs Act of 2017, enacted on December 22, 2017. Provision for income taxes in the fourth quarter of fiscal 2018 included a release of reserves relating to certain international transfer pricing matters. Provision for income taxes in the second quarter of fiscal 2017 included a tax benefit of $15.0 million for the release of a state tax credit valuation allowance as a result of the Acquisition. Provision for income taxes in the third quarter of fiscal 2017 included approximately $98.2 million of tax expense incurred during the quarter as part of the post-Acquisition integration, partially offset by a tax benefit of $50.5 million related to the reduction of reserves and related interest resulting from the U.S. Tax Court’s favorable ruling, as well as lower statutory tax rates applicable to our operations in the foreign jurisdictions in which the Company earns income. See Note 12, Income Taxes, of the Notes to the Consolidated Financial Statements contained in Item 8 of this Annual Report on Form 10-K.

d) Under the two-class method, earnings per share is calculated using net earnings allocable to common shares, which is derived by reducing net income by the income allocable to participating securities.