Summary of Significant Accounting Policies

Apple Inc. and its wholly-owned subsidiaries (collectively “Apple” or the “Company”) designs, manufactures and markets mobile communication and media devices and personal computers, and sells a variety of related software, services, accessories, networking solutions and third-party digital content and applications. The Company’s products and services include iPhone^®, iPad^®, Mac^®, Apple Watch^®, Apple TV^®, a portfolio of consumer and professional software applications, iOS, macOS^®, watchOS^® and tvOS™ operating systems, iCloud^®, Apple Pay^® and a variety of accessory, service and support offerings. The Company sells and delivers digital content and applications through the iTunes Store^®, App Store^®, Mac App Store, TV App Store, iBooks Store™ and Apple Music^® (collectively “Digital Content and Services”). The Company sells its products worldwide through its retail stores, online stores and direct sales force, as well as through third-party cellular network carriers, wholesalers, retailers and value-added resellers. In addition, the Company sells a variety of third-party Apple-compatible products, including application software and various accessories through its retail and online stores. The Company sells to consumers, small and mid-sized businesses and education, enterprise and government customers.

Basis of Presentation and Preparation

The accompanying condensed consolidated financial statements include the accounts of the Company. Intercompany accounts and transactions have been eliminated. In the opinion of the Company’s management, the condensed consolidated financial statements reflect all adjustments, which are normal and recurring in nature, necessary for fair financial statement presentation. The preparation of these condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Certain prior period amounts in the condensed consolidated financial statements have been reclassified to conform to the current period’s presentation. These condensed consolidated financial statements and accompanying notes should be read in conjunction with the Company's annual consolidated financial statements and the notes thereto included in its Annual Report on Form 10-K for the fiscal year ended September 24, 2016 (the “2016 Form 10-K”).

The Company’s fiscal year is the 52 or 53-week period that ends on the last Saturday of September. The Company’s fiscal year 2017 will include 53 weeks and ends on September 30, 2017 and its fiscal year 2016 included 52 weeks and ended on September 24, 2016. A 14th week was included in the first quarter of 2017, as is done every five or six years, to realign fiscal quarters with calendar quarters. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended in September and the associated quarters, months and periods of those fiscal years.

Earnings Per Share

Basic earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, shares to be purchased by employees under the Company’s employee stock purchase plan, unvested restricted stock and unvested restricted stock units (“RSUs”). The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. Under the treasury stock method, an increase in the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities.

The following table shows the computation of basic and diluted earnings per share for the three- and six-month periods ended April 1, 2017 and March 26, 2016 (net income in millions and shares in thousands):



	Three Months Ended				Six Months Ended
	April 1, 2017		March 26, 2016		April 1, 2017		March 26, 2016
Numerator:
Net income	$	11,029	$	10,516	$	28,920	$	28,877

Denominator:
Weighted-average shares outstanding	5,225,791		5,514,381		5,262,226		5,536,656
Effect of dilutive securities	35,897		26,505		32,615		30,850
Weighted-average diluted shares	5,261,688		5,540,886		5,294,841		5,567,506

Basic earnings per share	$	2.11	$	1.91	$	5.50	$	5.22
Diluted earnings per share	$	2.10	$	1.90	$	5.46	$	5.19

Potentially dilutive securities whose effect would have been antidilutive are excluded from the computation of diluted earnings per share.