UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended October 3, 2010

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File No. 001-06462

TERADYNE, INC.

(Exact name of registrant as specified in its charter)

Massachusetts	04-2272148
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
600 Riverpark Drive, North Reading, Massachusetts	01864
(Address of Principal Executive Offices)	(Zip Code)

978-370-2700

(Registrant’s Telephone Number, Including Area Code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to the filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files)    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act (check one):

Large accelerated filer  x    Accelerated filer  ¨    Non-accelerated filer  ¨    Smaller reporting company  ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

The number of shares outstanding of the registrant’s only class of Common Stock as of November 8, 2010 was 181,400,000 shares.

TERADYNE, INC.

INDEX

		Page No.
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited):
	Condensed Consolidated Balance Sheets as of October 3, 2010 and December 31, 2009		3
	Condensed Consolidated Statements of Operations for the Three and Nine Months Ended October 3, 2010 and October 4, 2009		4
	Condensed Consolidated Statements of Cash Flows for the Nine Months Ended October  3, 2010 and October 4, 2009		5
	Notes to Condensed Consolidated Financial Statements		6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		26
Item 3.	Quantitative and Qualitative Disclosures about Market Risk		40
Item 4.	Controls and Procedures		40
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings		42
Item 1A.	Risk Factors		42
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		42
Item 6.	Exhibits		43

2

PART I

Item 1: Financial Statements

TERADYNE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	October 3, 2010			December 31, 2009
	(in thousands, except per share amounts)
ASSETS
Current assets:
Cash and cash equivalents	$	433,915		$	416,737
Marketable securities		263,881			46,933
Accounts receivable, net of allowance for doubtful accounts of $3,754 and $3,770 at October 3, 2010 and December 31, 2009, respectively		306,522			125,236
Inventories:
Parts		67,748			43,691
Assemblies in process		24,426			37,161
Finished goods		10,674			9,984
		102,848			90,836
Deferred tax assets		20,017			18,944
Prepayments and other current assets		60,920			63,606
Total current assets		1,188,103			762,292
Property, plant, and equipment, at cost		779,616			782,407
Less: accumulated depreciation		547,268			536,045
Net property, plant, and equipment		232,348			246,362
Long-term marketable securities		201,486			55,130
Intangible assets, net		130,231			152,192
Retirement Plan assets		23,405			—
Other assets		16,038			19,361
Total assets	$	1,791,611		$	1,235,337
LIABILITIES
Current liabilities:
Accounts payable	$	133,330		$	66,765
Accrued employees’ compensation and withholdings		91,780			55,356
Deferred revenue and customer advances		101,584			104,439
Other accrued liabilities		57,566			54,640
Accrued income taxes		14,625			—
Current debt		2,397			2,157
Total current liabilities		401,282			283,357
Long-term deferred revenue and customer advances		80,818			2,318
Retirement plans liabilities		68,663			115,101
Deferred tax liabilities		10,271			8,041
Long-term other accrued liabilities		15,954			20,841
Long-term debt		147,287			141,100
Total liabilities		724,275			570,758
Commitments and contingencies (Note N)
SHAREHOLDERS’ EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized, 181,327 shares and 174,908 shares issued and outstanding at October 3, 2010 and December 31, 2009, respectively		22,666			21,864
Additional paid-in capital		1,260,911			1,202,426
Accumulated other comprehensive loss		(114,225	)		(138,105	)
Accumulated deficit		(102,016	)		(421,606	)
Total shareholders’ equity		1,067,336			664,579
Total liabilities and shareholders’ equity	$	1,791,611		$	1,235,337

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2009, are an integral part of the condensed

consolidated financial statements.

3

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

	For the Three Months Ended						For the Nine Months Ended
	October 3, 2010			October 4, 2009			October 3, 2010			October 4, 2009
	(in thousands, except per share amounts)
Net revenues:
Products	$	436,274		$	205,304		$	1,095,625		$	385,187
Services		65,812			56,858			190,860			167,163
Total net revenues		502,086			262,162			1,286,485			552,350
Cost of revenues:
Cost of products		191,860			125,116			482,715			273,911
Cost of services		34,451			30,291			100,148			91,195
Total cost of revenues		226,311			155,407			582,863			365,106
Gross profit		275,775			106,755			703,622			187,244
Operating expenses:
Engineering and development		50,122			38,266			149,567			123,915
Selling and administrative		61,109			46,314			175,323			148,944
Acquired intangible asset amortization		7,291			8,214			21,960			24,667
Restructuring and other, net		(859	)		5,189			2,105			36,424
Total operating expenses		117,663			97,983			348,955			333,950
Income (loss) from operations		158,112			8,772			354,667			(146,706	)
Interest income		1,466			1,003			5,990			2,920
Interest expense and other		(5,562	)		(4,600	)		(20,019	)		(18,475	)
Income (loss) before income taxes		154,016			5,175			340,638			(162,261	)
Income tax provision (benefit)		6,676			(1,500	)		21,049			(11,500	)
Net income (loss)	$	147,340		$	6,675		$	319,589		$	(150,761	)
Net income (loss) per common share:
Basic	$	0.81		$	0.04		$	1.78		$	(0.87	)
Diluted	$	0.66		$	0.04		$	1.45		$	(0.87	)
Weighted average common share—basic		181,239			174,495			179,365			173,216
Weighted average common share—diluted		229,389			180,792			229,069			173,216

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2009, are an integral part of the condensed

consolidated financial statements.

4

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	For the Nine Months Ended
	October 3, 2010			October 4, 2009
	(in thousands)
Cash flows from operating activities:
Net income (loss)	$	319,589		$	(150,761	)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation		40,055			45,717
Amortization		34,740			33,249
Stock-based compensation		23,365			18,268
Provision for excess and obsolete inventory		5,403			23,681
Loss on sale and impairment of marketable securities, net		398			2,000
Non-cash charge for sale of inventories revalued at the date of acquisition		—			10,863
Revolving credit facility issue costs		—			2,488
Deferred taxes		(460	)		(6,258	)
Other		1,643			1,696
Changes in operating assets and liabilities, net of businesses acquired:
Accounts receivable		(181,286	)		(30,022	)
Inventories		10,794			45,911
Other assets		896			(4,685	)
Deferred revenue and customer advances		75,645			67,921
Accounts payable and accrued expenses		95,460			1,810
Retirement plan contributions		(50,849	)		(5,718	)
Accrued income taxes		14,625			—
Net cash provided by operating activities		390,018			56,160
Cash flows from investing activities:
Purchases of property, plant and equipment		(53,959	)		(26,583	)
Purchases of available-for-sale marketable securities		(478,260	)		(31,470	)
Proceeds from sales of available-for-sale marketable securities		94,846			23,085
Proceeds from sales of trading marketable securities		23,750			—
Proceeds from life insurance		1,091			1,076
Acquisition of businesses, net of cash acquired		—			(3,741	)
Net cash used for investing activities		(412,532	)		(37,633	)
Cash flows from financing activities:
Issuance of common stock under employee stock option and stock purchase plans		42,225			15,256
Payments of long-term debt		(2,305	)		(1,069	)
Proceeds from long-term debt		—			172,914
Repayment of revolving credit facility principal		—			(122,500	)
Net cash provided by financing activities		39,920			64,601
Effect of exchange rate changes on cash and cash equivalents		(228	)		908
Increase in cash and cash equivalents		17,178			84,036
Cash and cash equivalents at beginning of period		416,737			322,705
Cash and cash equivalents at end of period	$	433,915		$	406,741

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2009, are an integral part of the condensed

consolidated financial statements.

5

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

A. The Company

Teradyne, Inc. (“Teradyne”) is a leading global supplier of automatic test equipment. Teradyne’s automatic test equipment products and services include:

• semiconductor test (“Semiconductor Test”) systems; and

• military/aerospace (“Mil/Aero”) test instrumentation and systems, hard disk drive test (“HDD”) systems, circuit-board test and inspection (“Commercial Board Test”) systems, and automotive diagnostic and test (“Diagnostic Solutions”) systems (collectively these products represent “Systems Test Group”).

B. Accounting Policies

Basis of Presentation

The condensed consolidated interim financial statements include the accounts of Teradyne and its subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair presentation of such interim financial statements. Certain prior year’s amounts were reclassified to conform to the current year presentation. The December 31, 2009 condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the SEC on March 1, 2010 for the year ended December 31, 2009.

Preparation of Financial Statements

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Actual results may differ significantly from these estimates.

Revenue Recognition

In October 2009, the Financial Accounting Standards Board (“FASB”) amended the accounting standards for revenue recognition to remove tangible products containing non-software and software components that function together to deliver the product’s essential functionality from the scope of industry-specific software revenue recognition guidance. In October 2009, the FASB also amended the accounting standards for arrangements with multiple deliverables. Teradyne elected to early adopt this accounting guidance at the beginning of its first quarter of 2010 on a prospective basis. Adoption had no material impact on Teradyne’s financial position or results of operations in the three and nine months ended October 3, 2010.

Teradyne recognizes revenue when there is persuasive evidence of an arrangement, title and risk of loss have passed, delivery has occurred or the services have been rendered, the sales price is fixed or determinable and collection of the related receivable is reasonably assured. Title and risk of loss generally pass to Teradyne’s customers upon shipment or at delivery destination point. In circumstances where either title or risk of loss pass upon destination, acceptance or cash payment, Teradyne defers revenue recognition until such events occur.

Teradyne’s equipment has non-software and software components that function together to deliver the equipment’s essential functionality. Revenue is recognized upon shipment or at delivery destination point, provided that customer acceptance criteria can be demonstrated prior to shipment. Certain contracts require Teradyne to perform tests of the product to ensure that performance meets the published product specifications or customer requested specifications, which are generally conducted prior to shipment. Where the criteria cannot be demonstrated prior to shipment, revenue is deferred until customer acceptance has been received. Teradyne also defers the portion of the sales price that is not due until acceptance, which represents deferred profit.

6

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

For multiple element arrangements, Teradyne allocates revenue to all deliverables based on their relative selling prices. In such circumstances, a hierarchy is used to determine the selling price for allocating revenue to deliverables as follows: (i) vendor-specific objective evidence of selling price (“VSOE”), (ii) third-party evidence of selling price (“TPE”), and (iii) best estimate of the selling price (“BESP”). For a delivered item to be considered a separate unit, the delivered item must have value to the customer on a standalone basis and the delivery or performance of the undelivered item must be considered probable and substantially in the control of Teradyne.

Teradyne’s post-shipment obligations include installation, training services, one-year standard warranties, and extended warranties. Installation does not alter the product capabilities, does not require specialized skills or tools and can be performed by the customers or other vendors. Installation is typically provided within five days of product shipment and is completed within one to two days thereafter. Training services are optional and do not affect the customers’ ability to use the product. Teradyne defers revenue for the selling price of installation and training.

C. Recently Issued Accounting Pronouncements

In March 2010, FASB issued an Accounting Standards Update (“ASU”) 2010-17, “Milestone Method of Revenue Recognition”, to Accounting Standards Codification (“ASC”) 605, “Revenue Recognition.” The guidance in this consensus allows the milestone method as an acceptable revenue recognition methodology when an arrangement includes substantive milestones. The guidance provides a definition of substantive milestone and should be applied regardless of whether the arrangement includes single or multiple deliverables or units of accounting. The scope of this consensus is limited to the transactions involving milestones relating to research and development deliverables. The guidance includes enhanced disclosure requirements about each arrangement, individual milestones and related contingent consideration, information about substantive milestones and factors considered in the determination. The consensus is effective prospectively to milestones achieved in fiscal years, and interim periods within those years, after June 15, 2010. Early application and retrospective application are permitted. Teradyne will adopt this final consensus prospectively in January 2011 and the adoption is not expected to have a material impact on Teradyne’s financial position or results of operations.

D. Financial Instruments and Derivatives

Financial Instruments

Teradyne uses the market and income approach to value its financial instruments and there was no change in valuation techniques used by Teradyne during the nine months ended October 3, 2010 and October 4, 2009. As defined in ASC 820-10, “Fair Value Measurements and Disclosures”, fair value is the price that would be received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. ASC 820-10 requires that assets and liabilities are carried at fair value and are classified in one of the following three categories:

Level 1: Quoted prices in active markets for identical assets as of the reporting date.

Level 2: Inputs other than Level 1, that are observable either directly or indirectly as of the reporting date. For example, a common approach for valuing fixed income securities is the use of matrix pricing. Matrix pricing is a mathematical technique used to value securities by relying on the securities’ relationship to other benchmark quoted prices.

Level 3: Unobservable inputs that are not supported by market data. Unobservable inputs are developed based on the best information available, which might include Teradyne’s own data.

7

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

For the right to sell the auction rate securities, held by Teradyne, back to UBS (“UBS Put”), Teradyne elected fair value treatment under ASC 825-10, “Financial Instruments.” The UBS Put was the only instrument of this nature or type that Teradyne held and for which Teradyne has elected the fair value option under ASC 825-10. The UBS Put was exercised in June 2010.

In January 2010, FASB issued ASU 2010-6, “Improving Disclosures about Fair Value Measurement”, which requires interim disclosures regarding significant transfers in and out of Level 1 and Level 2 fair value measurements. Additionally, this ASU requires disclosure for each class of assets and liabilities and disclosures about the valuation techniques and inputs used to measure fair value for both recurring and non-recurring fair value measurements. These disclosures are required for fair value measurements that fall in either Level 2 or Level 3. Further, the ASU requires separate presentation of Level 3 activity for the fair value measurements. Teradyne adopted the interim disclosure requirements under this ASU during the quarter ended April 4, 2010, with the exception of the separate presentation in the Level 3 activity rollforward, which is not effective until fiscal years beginning after December 15, 2010 and for interim periods within those fiscal years.

During the nine months ended October 3, 2010, there were no significant transfers in and out of Level 1 and Level 2.

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of October 3, 2010 and December 31, 2009.

	October 3, 2010
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Available for sale securities:
Money market funds	$	247,596	$	—	$	—	$	247,596
U.S. government agency securities		—		216,668		—		216,668
U.S. Treasury securities		110,260		—		—		110,260
Corporate debt securities		—		70,456		—		70,456
Municipal bonds		—		55,368		—		55,368
Commercial paper		—		51,564		—		51,564
Certificates of deposit and time deposits		—		11,683		—		11,683
Equity and debt mutual funds		7,423		—		—		7,423
Non-U.S. government securities		283		—		—		283
Total		365,562		405,739		—		771,301
Trading securities:
Auction rate securities		—		—		2,786		2,786
Derivatives		—		280		—		280
Total	$	365,562	$	406,019	$	2,786	$	774,367

8

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	247,596	$	61,124	$	—	$	308,720
Marketable securities		57,740		206,141		—		263,881
Long-term marketable securities		60,226		138,474		2,786		201,486
Prepayments and other current assets		—		280		—		280
	$	365,562	$	406,019	$	2,786	$	774,367
	December 31, 2009
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Available for sale securities:
Money market funds	$	284,236	$	—	$	—	$	284,236
Corporate debt securities		—		21,224		—		21,224
U.S. government agency securities		—		16,418		—		16,418
Certificates of deposit and time deposits		—		15,855		—		15,855
U.S. Treasury securities		12,010		—		—		12,010
Commercial paper		—		8,245		—		8,245
Equity and debt mutual funds		7,499		—		—		7,499
Municipal bonds		—		528		—		528
Non-U.S. government securities		287		—		—		287
Total		304,032		62,270		—		366,302
Trading securities:
Auction rate securities		—		—		23,649		23,649
UBS Put		—		—		2,830		2,830
Total	$	304,032	$	62,270	$	26,479	$	392,781
Liabilities
Derivatives	$	—	$	143	$	—	$	143
Total	$	—	$	143	$	—	$	143

9

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	284,237	$	3,651	$	—	$	287,888
Marketable securities		8,001		38,932		—		46,933
Long-term marketable securities		11,794		19,687		23,649		55,130
Other assets		—		—		2,830		2,830
	$	304,032	$	62,270	$	26,479	$	392,781
Liabilities
Other accrued liabilities	$	—	$	143	$	—	$	143

The following table represents changes in the fair value of Level 3 financial assets:

	For the Three Months Ended
	October 3, 2010						October 4, 2009
	Long-Term Auction Rate Securities			UBS Put			Long-Term Auction Rate Securities			UBS Put
	(in thousands)
Balance at beginning of period	$	2,836		$	—		$	26,186		$	3,070
Sale of auction rate securities		(50	)		—			(550	)		—
Change in unrealized gain included in interest income		—			—			388			—
Change in unrealized loss included in interest expense and other		—			—			—			(128	)
Balance at end of period	$	2,786		$	—		$	26,024		$	2,942
	For the Nine Months Ended
	October 3, 2010						October 4, 2009
	Long-Term Auction Rate Securities			UBS Put			Long-Term Auction Rate Securities			UBS Put
	(in thousands)
Balance at beginning of period	$	23,649		$	2,830		$	25,968		$	3,330
Sale of auction rate securities and exercise of UBS Put		(21,063	)		(2,687	)		(550	)		—
Change in unrealized gain included in interest income		200			—			1,053			—
Change in unrealized loss included in interest expense and other		—			(143	)		(447	)		(388	)
Balance at end of period	$	2,786		$	—		$	26,024		$	2,942

During the nine months ended October 3, 2010, Teradyne recorded a net loss of $0.4 million from sales of marketable securities and exercise of UBS Put. During the nine months ended October 4, 2009, Teradyne recorded a net loss of $1.3 million from sales of marketable securities.

During the nine months ended October 4, 2009, Teradyne determined that it did not intend to hold certain marketable securities for a period of time sufficient to allow for recovery in market value and recognized an other-than-temporary impairment loss in the amount of $0.7 million.

Realized losses from sale of marketable securities, decreases in auction rate securities fair value and other-than-temporary impairment losses are included in interest expense and other. Increases in auction rate securities fair value are included in interest income.

10

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The carrying amounts and fair values of financial instruments at October 3, 2010 and December 31, 2009 are as follows:

	October 3, 2010				December 31, 2009
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Cash equivalents	$	308,720	$	308,720	$	287,888	$	287,888
Marketable securities		465,367		465,367		102,063		102,063
UBS Put		—		—		2,830		2,830
Convertible debt(1)		141,297		412,063		133,554		392,113
Japan loan		8,387		8,387		9,703		9,703

(1) The carrying value represents the bifurcated debt component only, while the fair value is based on quoted market prices for the convertible note which includes the equity conversion feature.

The fair values of cash, accounts receivable, net and accounts payable approximate the carrying amount due to the short term maturities of these instruments.

The following table summarizes available-for-sale marketable securities which are recorded at fair value:

	October 3, 2010
	Available-for-Sale									Fair Market Value of Investments with Unrealized  Losses
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value
	(in thousands)
Money market funds	$	247,596	$	—	$	—		$	247,596	$	—
U.S. government agency securities		216,128		548		(8	)		216,668		22,064
U.S. Treasury securities		109,995		265		—			110,260		—
Corporate debt securities		70,188		271		(3	)		70,456		4,976
Municipal bonds		55,368		2		(2	)		55,368		13,836
Commercial paper		51,576		—		(12	)		51,564		9,975
Certificates of deposit and time deposits		11,675		8		—			11,683		—
Equity and debt mutual funds		6,715		801		(93	)		7,423		874
Non-U.S. government securities		266		17		—			283		—
	$	769,507	$	1,912	$	(118	)	$	771,301	$	51,725

11

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Cash and cash equivalents	$	308,721	$	1	$	(2	)	$	308,720	$	13,836
Marketable securities		263,702		193		(14	)		263,881		19,537
Long-term marketable securities		197,084		1,718		(102	)		198,700		18,352
	$	769,507	$	1,912	$	(118	)	$	771,301	$	51,725
	December 31, 2009
	Available-for-Sale									Fair Market Value of Investments with Unrealized  Losses
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value
	(in thousands)
Money market funds	$	284,236	$	—	$	—		$	284,236	$	—
Corporate debt securities		21,243		11		(30	)		21,224		11,091
U.S. government agency securities		16,418		5		(5	)		16,418		6,155
Certificates of deposit and time deposits		15,854		1		—			15,855		—
U.S. Treasury securities		12,014		—		(4	)		12,010		10,508
Commercial paper		8,246		—		(1	)		8,245		2,397
Equity and debt mutual funds		7,430		622		(553	)		7,499		4,139
Municipal bonds		532		—		(4	)		528		528
Non-U.S. government securities		269		18		—			287		—
	$	366,242	$	657	$	(597	)	$	366,302	$	34,818

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Cash and cash equivalents	$	287,888	$	—	$	—		$	287,888	$	—
Short-term marketable securities		46,928		7		(2	)		46,933		16,425
Long-term marketable securities		31,426		650		(595	)		31,481		18,393
	$	366,242	$	657	$	(597	)	$	366,302	$	34,818

On a quarterly basis, Teradyne reviews its investments to identify and evaluate those that have an indication of a potential other-than-temporary impairment. Factors considered in determining whether a loss is other-than-temporary include:

• The length of time and the extent to which the market value has been less than cost;

• The financial condition and near-term prospects of the issuer; and

• The intent and ability to retain the investment in the issuer for a period of time sufficient to allow for any anticipated recovery in market value.

As of October 3, 2010 and December 31, 2009, the fair market value of investments with unrealized losses totaled $51.7 million and $34.8 million, respectively. Teradyne determined that the unrealized losses in the amount of $0.1 million and $0.6 million, respectively, related to these investments are temporary.

12

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Derivatives

Teradyne conducts business in a number of foreign countries, with certain transactions denominated in local currencies. The purpose of Teradyne’s foreign currency management is to minimize the effect of exchange rate fluctuations on certain foreign denominated net monetary assets. Teradyne does not use derivative financial instruments for trading or speculative purposes.

To minimize the effect of exchange rate fluctuations associated with the remeasurement of net monetary assets denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings, and is used to offset the change in fair value of the net monetary assets denominated in foreign currencies.

The notional amount of foreign exchange contracts hedging monetary assets and liabilities denominated in foreign currencies was $59.6 million and $56.9 million at October 3, 2010 and December 31, 2009, respectively.

The following table summarizes the fair value of derivative instruments as of October 3, 2010 and December 31, 2009.

	Balance Sheet Location	October 3, 2010		December 31, 2009
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Prepayments and other current assets	$	280	$	—
Foreign exchange contracts	Other accrued liabilities		—		143
		$	280	$	143

The following table summarizes the effect of derivative instruments in the statement of operations recognized during the three and nine months ended October 3, 2010 and October 4, 2009. The table does not reflect the corresponding gain (loss) from the hedged balance sheet.

	Location of Gains (Losses) Recognized in Statement of Operations		For the Three Months Ended					For the Nine Months Ended
			October 3, 2010		October 4, 2009			October 3, 2010			October 4, 2009
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts		Interest expense and other	$	209	$	(402	)	$	(1,054	)	$	1,241
			$	209	$	(402	)	$	(1,054	)	$	1,241

See Debt footnote E regarding derivatives related to convertible senior notes.

E. Debt

Loan Agreement

On March 31, 2009, Teradyne K.K., Teradyne’s wholly-owned subsidiary in Japan, entered into a loan agreement with a local bank in Japan to borrow approximately $10.0 million. The loan has a term of 5 years and

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TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

a fixed interest rate of 1.4%. Approximately $6.0 million of the loan is collateralized by a real estate mortgage on Teradyne K.K.’s building and land in Kumamoto, Japan and approximately $4.0 million is unsecured. Teradyne, Inc. has guaranteed payment of the loan obligation. The loan is amortized over the term of the loan with semiannual principal payments of approximately $1.0 million payable on September 30 and March 30 each year. At October 3, 2010, approximately $2.4 million of the outstanding loan principal is included in current debt and approximately $6.0 million is classified as long-term debt.

Convertible Senior Notes

On March 31, 2009, Teradyne entered into an underwriting agreement regarding a public offering of $175 million aggregate principal amount of 4.50% convertible senior notes due March 15, 2014 (the “Notes”). On April 1, 2009, the underwriters exercised their option to purchase an additional $15 million aggregate principal amount of the Notes for a total aggregate principal amount of $190 million. The Notes bear interest at a rate of 4.50% per annum, payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2009. The Notes will mature on March 15, 2014, unless earlier repurchased by Teradyne or converted. The Notes are senior unsecured obligations and rank equally with all of Teradyne’s existing and future senior debt and senior to any of Teradyne’s subordinated debt.

The Notes may be converted, under certain circumstances and during certain periods, at an initial conversion rate of approximately 182.65 shares of Teradyne’s common stock per $1,000 principal amount of Notes, which is equivalent to an initial conversion price of approximately $5.48, a 25% conversion premium based on the last reported sale price of $4.38 per share of Teradyne’s common stock on March 31, 2009. The conversion rate is subject to adjustment in certain circumstances.

Holders may convert their Notes at their option prior to the close of business on the business day immediately preceding December 15, 2013, under the following circumstances: (1) during the five business-day period after any five consecutive trading day period (the “measurement period”) in which the price per Note for each day of that measurement period was less than 98% of the product of the last reported sale price of Teradyne’s common stock and the conversion rate for such date; (2) during any calendar quarter, if the last reported sale price of Teradyne’s common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeds 130% of the applicable conversion price in effect on the last trading day of the immediately preceding calendar quarter; or (3) upon the occurrence of certain specified events. Additionally, the Notes are convertible during the last three months prior to the March 15, 2014 maturity date. Upon conversion, holders will receive, at Teradyne’s option, shares of Teradyne common stock, cash or a combination of cash and shares of Teradyne common stock, subject to Teradyne’s option to irrevocably elect to settle all future conversions in cash up to the principal amount of the Notes and shares of common stock for any excess.

During the three months ended October 3, 2010, the following circumstance that allows holders to convert their Notes at their option prior to December 15, 2013 occurred: the last reported sale price of Teradyne’s common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeded 130% of the conversion price in effect on the last trading day of the immediately preceding calendar quarter. As of November 10, 2010, no holders have exercised their option to convert their Notes.

Teradyne may not redeem the Notes prior to their maturity. Holders of the Notes may require Teradyne to purchase in cash all or a portion of their Notes at a price equal to 100% of the principal amount, plus accrued and unpaid interest, upon the occurrence of certain fundamental changes involving Teradyne (which include, among

14

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

others, the liquidation or dissolution of Teradyne, the acquisition of 50% or more of the total voting shares of Teradyne, certain mergers and consolidations, and the delisting of Teradyne’s stock).

Concurrently with the offering of the Notes, Teradyne entered into a convertible note hedge transaction with a strike price equal to the initial conversion price of the Notes, or approximately $5.48. The convertible note hedge allows Teradyne to receive shares of its common stock and/or cash related to the excess conversion value that it would pay to the holders of the Notes upon conversion. The convertible note hedges will cover, subject to customary antidilution adjustments, approximately 34,703,196 shares of Teradyne’s common stock. Teradyne paid approximately $64.6 million for the convertible note hedges.

Separately, Teradyne entered into a warrant transaction with a strike price of approximately $7.67 per share, which is 75% higher than the closing price of Teradyne’s common stock on March 31, 2009. The warrants will be net share settled and will cover, subject to customary antidilution adjustments, approximately 34,703,196 shares of Teradyne’s common stock. Teradyne received approximately $43.0 million for the warrants.

The convertible notes hedge and warrant transaction will generally have the effect of increasing the conversion price of the Notes to approximately $7.67 per share of Teradyne’s common stock, representing a 75% conversion premium based upon the closing price of Teradyne’s common stock on March 31, 2009.

The notes are classified as long-term debt in the balance sheet at October 3, 2010 and December 31, 2009. The below tables represent the components of Teradyne’s convertible senior notes:

	October 3, 2010		December 31, 2009
	(in thousands)
Debt principal	$	190,000	$	190,000
Unamortized debt discount		48,703		56,446
Net carrying amount of the convertible debt	$	141,297	$	133,554

	For the Three Months Ended				For the Nine Months Ended
	October 3, 2010		October 4, 2009		October 3, 2010		October 4, 2009
	(in thousands)
Contractual interest expense on the coupon	$	2,138	$	2,090	$	6,509	$	4,251
Amortization of the discount component and debt issue fees		2,783		2,533		8,263		4,988
Total interest expense on the convertible debt	$	4,921	$	4,623	$	14,772	$	9,239

As of October 3, 2010, the unamortized discount was $48.7 million, which will be amortized over approximately 3.5 years, and the carrying amount of the equity component was $63.4 million. As of October 3, 2010, the conversion rate was equal to the initial conversion price of approximately $5.48 per share and the if-converted value of the Notes was $385.2 million.

Revolving Credit Facility

On April 7, 2009, Teradyne terminated its revolving credit facility agreement. Teradyne used approximately $123.3 million of the net proceeds of the Notes offering to repay $122.5 million of principal and $0.8 million of accrued interest outstanding under the revolving credit facility agreement.

15

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

F. Deferred Revenue and Customer Advances

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances.

	October 3, 2010		December 31, 2009
	(in thousands)
Customer advances	$	140,980	$	74,887
Maintenance, training and extended warranty		34,960		22,616
Undelivered elements		884		5,551
Acceptance		2,654		530
Other		2,924		3,173
Total deferred revenue and customer advances	$	182,402	$	106,757

G. Product Warranty

Teradyne generally provides a one-year warranty on its products commencing upon installation or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended						For the Nine Months Ended
	October 3, 2010			October 4, 2009			October 3, 2010			October 4, 2009
	(in thousands)
Balance at beginning of period	$	11,062		$	5,011		$	7,086		$	8,372
Accruals for warranties issued during the period		5,299			3,793			14,273			6,967
Accruals related to pre-existing warranties		(360	)		170			(23	)		(827	)
Settlements made during the period		(3,595	)		(2,288	)		(8,930	)		(7,826	)
Balance at end of period	$	12,406		$	6,686		$	12,406		$	6,686

When Teradyne receives revenue for extended warranties beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in deferred revenue and customer advances and long-term other accrued liabilities.

	For the Three Months Ended						For the Nine Months Ended
	October 3, 2010			October 4, 2009			October 3, 2010			October 4, 2009
	(in thousands)
Balance at beginning of period	$	5,643		$	4,647		$	4,055		$	6,369
Deferral of new extended warranty revenue		2,193			595			5,408			1,472
Recognition of extended warranty deferred revenue		(800	)		(1,210	)		(2,427	)		(3,809	)
Balance at end of period	$	7,036		$	4,032		$	7,036		$	4,032

16

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

H. Stock-Based Compensation

During the nine months ended October 3, 2010, Teradyne granted service-based restricted stock units to employees, and service-based stock options and service and performance-based restricted stock units to executive officers. The total number of restricted stock units granted was 2.6 million at the weighted average grant date fair value of $9.42. Service-based restricted stock units granted to employees and executive officers vest in equal installments over four years. The percentage level of performance satisfied for performance-based grants is assessed on or near the anniversary of the grant date and, in turn, that percentage level determines the number of performance-based restricted stock units available for vesting over the vesting period; portions of the performance-based grants not available for vesting are forfeited. The total number of stock options granted to executive officers was 0.3 million at the weighted average grant date fair value of $4.10. These stock options vest in equal installments over four years, and have a term of seven years from the date of grant.

During the nine months ended October 4, 2009, Teradyne granted service-based restricted stock units to employees, and service-based restricted stock units and stock options to executive officers. The total number of restricted stock units granted was 4.2 million at the weighted average grant date fair value of $4.91. The total number of stock options granted was 1.1 million at the weighted average grant date fair value of $1.97. Restricted stock units and stock options vest in equal installments over four years. These stock options have a term of seven years from the date of grant.

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Nine Months Ended
	October 3, 2010			October 4, 2009
Expected life (years)		4.75			4.75
Interest rate		2.4	%		1.6	%
Volatility-historical		48.8	%		44.9	%
Dividend yield		0.0	%		0.0	%

Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free rate was determined using the U.S. Treasury yield curve in effect at the time of grant.

17

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

I. Comprehensive Income (Loss)

Comprehensive income (loss) is calculated as follows:

	For the Three Months Ended					For the Nine Months Ended
	October 3, 2010		October 4, 2009			October 3, 2010			October 4, 2009
	(in thousands)
Net income (loss)	$	147,340	$	6,675		$	319,589		$	(150,761	)
Foreign currency translation adjustment		264		(685	)		(99	)		909
Unrealized gain on investments, net of tax of $0		1,435		745			1,731			2,452
Actuarial gains (losses) arising during period, net of tax of $293, $0, $1,540 and $(984)		342		51			17,929			(10,044	)
Amortization included in net periodic pension and post-retirements costs:
Actuarial losses, net of tax of $21, $29, $109 and $176		1,333		970			4,040			3,070
Prior service costs, net of tax of $0		32		139			278			426
Comprehensive income (loss)	$	150,746	$	7,895		$	343,468		$	(153,948	)

J. Intangible Assets

Amortizable intangible assets consist of the following and are included in intangible assets on the balance sheet:

	October 3, 2010
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(in thousands)
Developed technology	$	121,055	$	61,166	$	59,889		6.1 years
Customer relationships and service and software maintenance contracts		91,271		30,109		61,162		8.6 years
Trade names and trademarks		14,840		5,660		9,180		11.5 years
Total intangible assets	$	227,166	$	96,935	$	130,231		7.6 years
	December 31, 2009
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Useful Life
	(in thousands)
Developed technology	$	121,055	$	47,746	$	73,309		6.1 years
Customer relationships and service and software maintenance contracts		91,271		22,187		69,084		8.6 years
Trade names and trademarks		14,840		5,041		9,799		11.5 years
Total intangible assets	$	227,166	$	74,974	$	152,192		7.6 years

18

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Aggregate intangible asset amortization expense was $7.3 million and $22.0 million, respectively, for the three and nine months ended October 3, 2010 and $8.2 million and $24.7 million, respectively, for the three and nine months ended October 4, 2009. Estimated intangible asset amortization expense for each of the five succeeding fiscal years is as follows:

Year	Amount (in thousands)
2010 (remainder)	$	7,291
2011		27,821
2012		25,732
2013		24,683
2014		21,598

K. Net Income (Loss) per Common Share

The following table sets forth the computation of basic and diluted net income (loss) per common share:

	For the Three Months Ended				For the Nine Months Ended
	October 3, 2010		October 4, 2009		October 3, 2010		October 4, 2009
	(in thousands, except per share amounts)
Net income (loss) for basic net income (loss) per share	$	147,340	$	6,675	$	319,589	$	(150,761	)
Income impact of assumed conversion of convertible notes		4,438		—		13,203		—
Net income (loss) for diluted net income (loss) per share	$	151,778	$	6,675	$	332,792	$	(150,761	)
Shares used in net income (loss) per common share-basic		181,239		174,495		179,365		173,216
Effect of dilutive potential common shares:
Incremental shares from assumed conversion of convertible note		34,703		—		34,703		—
Warrants		8,506		1,769		9,618		—
Restricted stock units		2,848		2,153		2,880		—
Stock options		2,044		2,327		2,439		—
Stock purchase rights		49		48		64		—
Dilutive potential common shares		48,150		6,297		49,704		—
Shares used in net income (loss) per common share-diluted		229,389		180,792		229,069		173,216
Net income (loss) per common share-basic	$	0.81	$	0.04	$	1.78	$	(0.87	)
Net income (loss) per common share-diluted	$	0.66	$	0.04	$	1.45	$	(0.87	)

The computation of diluted net income per common share for the three and nine months ended October 3, 2010 excludes the effect of the potential exercise of options to purchase approximately 4.4 million and 5.5 million shares and restricted stock units of 0.1 million and 0.1 million shares, respectively, because the effect would have been anti-dilutive.

The computation of diluted net income per common share for the three months ended October 4, 2009 excludes the effect of the potential exercise of options to purchase approximately 7.7 million shares and restricted stock units of 2.3 million because the effect would have been anti-dilutive. In addition, approximately 34.7 million shares of common stock issuable upon conversion of the Notes were excluded from the calculation of net income per share because the effect would have been anti-dilutive.

19

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The computation of diluted net loss per common share for the nine months ended October 4, 2009 excludes all outstanding stock options, restricted stock units and warrants because Teradyne had a net loss and inclusion would be anti-dilutive.

Teradyne’s call option on its common stock (convertible note hedge transaction) is excluded from the calculation of diluted shares because the effect would be anti-dilutive. See Debt footnote E regarding convertible note hedge transaction.

L. Restructuring and Other, Net

Restructuring

In response to a downturn in the industry, Teradyne initiated restructuring activities across all segments to reduce costs, principally through headcount reductions and facility consolidations. The tables below represent activity related to these actions. The remaining accrual for severance and benefits is reflected in the accrued employees’ compensation and withholdings account on the balance sheet and is expected to be paid by the end of 2010. The remaining accrual for lease payments on vacated facilities is reflected in the other accrued liabilities account and the long-term other accrued liabilities account and is expected to be paid over the lease terms, the latest of which expires in 2013. Teradyne expects to pay approximately $2.2 million against the lease accruals over the next twelve months. Teradyne’s future lease commitments are net of expected sublease income of $1.6 million as of October 3, 2010.

Severance and Benefits:

	Pre-2009 Actions			Q1 2009 Actions			Q2 2009 Actions			Q1 2010 Actions			Q2 2010 Actions			Q3 2010 Actions			Total
	(in thousands)
Balance at December 31, 2008	$	5,423		$	—		$	—		$	—		$	—		$	—		$	5,423
Provision		—			17,630			15,940			—			—			—			33,570
Cash payments		(5,423	)		(17,630	)		(13,035	)		—			—			—			(36,088	)
Balance at December 31, 2009		—			—			2,905			—			—			—			2,905
Provision		—			—			—			766			—			—			766
Change in estimate		—			—			498			—			—			—			498
Cash payments		—			—			(2,079	)		(573	)		—			—			(2,652	)
Balance at April 4, 2010		—			—			1,324			193			—			—			1,517
Provision		—			—			—			—			845			—			845
Change in estimate		—			—			(96	)		(5	)		—			—			(101	)
Cash payments		—			—			(695	)		(188	)		(387	)		—			(1,270	)
Balance at July 4, 2010		—			—			533			—			458			—			991
Provision		—			—			—			—			209			1,400			1,609
Change in estimate		—			—			(118	)		—			—			—			(118	)
Cash payments		—			—			(284	)		—			(177	)		(187	)		(648	)
Balance at October 3, 2010	$	—		$	—		$	131		$	—		$	490		$	1,213		$	1,834

20

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Facility Exit Costs:

	Pre-2009 Actions			Q3 2009 Actions			Q2 2010 Actions		Total
Balance at December 31, 2008	$	9,303		$	—		$	—	$	9,303
Provision		—			4,420			—		4,420
Change in estimate		(417	)		—			—		(417	)
Cash payments		(2,645	)		(285	)		—		(2,930	)
Other		—			100			—		100
Balance at December 31, 2009		6,241			4,235			—		10,476
Cash payments		(468	)		(272	)		—		(740	)
Balance at April 4, 2010		5,773			3,963			—		9,736
Provision		—			—			815		815
Cash payments		(553	)		(264	)		—		(817	)
Balance at July 4, 2010		5,220			3,699			815		9,734
Change in estimate		(2,367	)		—			—		(2,367	)
Cash payments		(1,881	)		(493	)		—		(2,374	)
Balance at October 3, 2010	$	972		$	3,206		$	815	$	4,993

During the nine months ended October 3, 2010, Teradyne recorded restructuring charges related to ongoing efforts to lower expenses and its cost structure and an additional charge due to a change in estimated severance benefits related to a prior period activity. The restructuring charges consisted of the following activities:

Q1 2010 Actions:

• $0.8 million of severance charges related to headcount reductions of 14 people, of which $0.4 million and 10 people were in Systems Test Group and $0.4 million and 4 people were in Semiconductor Test.

Q2 2010 Actions:

• $1.1 million of severance charges related to headcount reductions of approximately 10 people in Systems Test Group; and

• $0.8 million of facility charges in Systems Test Group related to the early exit of leased facilities in Kontich, Belgium and Stockport, United Kingdom.

Q3 2010 Actions:

• $1.4 million of severance charges related to headcount reductions of 22 people in Systems Test Group.

Q2 2009 Actions:

• $0.3 million related to a change in the estimated severance benefits related to headcount reduction activities across both segments.

Pre-2009 Actions:

• $(2.4) million credit related to the early exit of previously impaired leased facilities in Westford, Massachusetts.

21

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

During the nine months ended October 4, 2009, Teradyne recorded restructuring charges related to ongoing efforts to lower expenses and its cost structure in light of the industry wide decline in orders for semiconductor equipment. The restructuring charges consisted of the following activities:

Q3 2009 Actions:

• $4.4 million of charges across both segments related to the early exit of a leased facility in North Reading, Massachusetts and Novi, Michigan.

Q2 2009 Actions:

• $14.1 million of severance charges related to headcount reductions of 316 people, of which $9.7 million and 267 people were in Semiconductor Test, $2.7 million and 25 people were in Corporate, and $1.7 million and 24 people were in Systems Test Group.

Q1 2009 Actions:

• $17.6 million of severance charges related to headcount reductions of 518 people, of which $14.9 million and 460 people were in Semiconductor Test, $1.9 million and 42 people were in Systems Test Group, and $0.8 million and 16 people were in Corporate.

Other

During the nine months ended October 4, 2009, Teradyne recorded the following activity:

• $1.1 million of long-lived asset impairment charges across both segments primarily related to disposal of fixed assets as a result of the consolidation of Teradyne’s facilities in North Reading, Massachusetts; and

• $(2.0) million of credits related to finalization of certain Eagle Test purchase accounting items.

M. Retirement Plans

Defined Benefit Pension Plans

Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets of these plans consist primarily of equity and fixed income securities. In addition, Teradyne has foreign unfunded defined benefit pension plans and an unfunded supplemental executive defined benefit plan in the United States to provide retirement benefits in excess of levels allowed by the Employment Retirement Income Security Act and the Internal Revenue Code.

22

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Components of net periodic pension cost for all plans for the three and nine months ended October 3, 2010 and October 4, 2009 were as follows:

	For the Three Months Ended						For the Nine Months Ended
	October 3,  2010			October 4,  2009			October 3, 2010			October 4, 2009
	(in thousands)
Service cost	$	792		$	954		$	2,782		$	3,088
Interest cost		4,422			4,615			13,227			13,842
Expected return on plan assets		(5,020	)		(4,795	)		(15,153	)		(14,508	)
Amortization of unrecognized:
Prior service cost		182			197			545			601
Net loss		1,325			942			4,091			3,076
Curtailment gain		—			—			—			(599	)
Settlement loss		442			—			442			1,676
Total net periodic pension cost	$	2,143		$	1,913		$	5,934		$	7,176

In the nine months ended October 3, 2010, Teradyne made $45.0 million of discretionary contributions to the U.S. Qualified Pension Plan.

Post-Retirement Benefit Plans

In addition to receiving pension benefits, U.S. Teradyne employees who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes death, and medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees (including executive officers) could become eligible for these benefits, and the existing benefit obligation relates primarily to those employees.

Components of net periodic post-retirement cost were as follows:

	For the Three Months Ended						For the Nine Months Ended
	October 3, 2010			October 4, 2009			October 3,  2010			October 4,  2009
	(in thousands)
Service cost	$	15		$	27		$	42		$	82
Interest cost		138			273			530			819
Amortization of unrecognized:
Prior service benefit		(150	)		(58	)		(267	)		(176	)
Net loss		29			57			58			171
Total net periodic post-retirement cost	$	32		$	299		$	363		$	896

N. Commitments and Contingencies

Purchase Commitments

As of October 3, 2010, Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments are for less than one year and aggregate to approximately $233.0 million.

23

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Legal Claims

Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on Teradyne’s results of operations, financial condition or cash flows.

O. Segment Information

Teradyne’s two reportable segments are Semiconductor Test and Systems Test Group. The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services. The Systems Test Group segment includes operations related to the design, manufacturing and marketing of products and services for military/aerospace instrumentation test, hard disk drive test, circuit-board test and inspection, and automotive diagnostic and test.

Teradyne evaluates performance based on several factors, of which the primary financial measure is business segment income before income taxes. The accounting policies of the business segments are the same as those described in Note B: “Accounting Policies” in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2009. Segment information is as follows:

	Semiconductor Test			Systems Test Group			Corporate and Eliminations			Consolidated
	(in thousands)
Three months ended October 3, 2010:
Net revenues	$	448,273		$	53,813		$	—		$	502,086
Income (loss) before income taxes(1)(2)		158,066			627			(4,677	)		154,016
Three months ended October 4, 2009:
Net revenues	$	173,149		$	89,013		$	—		$	262,162
Loss (income) before income taxes(1)(2)		(3,486	)		12,379			(3,718	)		5,175
Nine months ended October 3, 2010:
Net revenues	$	1,151,010		$	135,475		$	—		$	1,286,485
Income (loss) before income taxes(1)(2)		367,623			(11,966	)		(15,019	)		340,638
Nine months ended October 4, 2009:
Net revenues	$	354,495		$	197,855		$	—		$	552,350
Loss (income) before income taxes(1)(2)		(146,649	)		4,509			(20,121	)		(162,261	)

(1) Interest income and interest expense and other are included in Corporate and Eliminations.

(2) Included in the income before income taxes for each of the segments are charges for the three and nine months ended October 3, 2010 and October 4, 2009 that include restructuring and other, net, inventory step-up amortization and provision for excess and obsolete inventory, as follows:

24

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Included in the Semiconductor Test segment are charges for the following:

	For the Three Months Ended					For the Nine Months Ended
	October 3, 2010			October 4, 2009		October 3, 2010			October 4, 2009
	(in thousands)
Cost of revenues—provision for excess and obsolete inventory	$	3,500		$	5,219	$	3,996		$	16,953
Cost of revenues—sale of previously written down inventory		(871	)		—		(5,510	)		—
Cost of revenues—inventory step-up		—			5,700		—			10,863
Restructuring and other, net		91			4,738		1,172			29,409
Total	$	2,720		$	15,657	$	(342	)	$	57,225

Included in the Systems Test Group segment are charges for the following:

	For the Three Months Ended					For the Nine Months Ended
	October 3, 2010			October 4, 2009		October 3, 2010			October 4, 2009
	(in thousands)
Cost of revenues—provision for excess and obsolete inventory	$	238		$	757	$	1,407		$	6,728
Cost of revenues—sale of previously written down inventory		(441	)		—		(1,034	)		—
Restructuring and other, net		(866	)		377		1,053			3,840
Total	$	(1,069	)	$	1,134	$	1,426		$	10,568

Included in the Corporate and Eliminations segment are charges for the following:

	For the Three Months Ended					For the Nine Months Ended
	October 3, 2010			October 4, 2009		October 3, 2010			October 4, 2009
	(in thousands)
Restructuring and other, net	$	(84	)	$	74	$	(120	)	$	3,175
Total	$	(84	)	$	74	$	(120	)	$	3,175

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Item 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations

Statements in this Quarterly Report on Form 10-Q which are not historical facts, so called “forward looking statements,” are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934, as amended. Investors are cautioned that all forward looking statements involve risks and uncertainties, including those detailed in Teradyne’s filings with the Securities and Exchange Commission. See also Part II, Item 1A of this Quarterly Report on Form 10-Q and Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2009. Readers are cautioned not to place undue reliance on these forward-looking statements which reflect management’s analysis only as of the date hereof. Teradyne assumes no obligation to update these forward-looking statements to reflect actual results or changes in factors or assumptions affecting forward-looking statements, except as may be required by law.

Overview

Teradyne is a leading global supplier of automatic test equipment. We design, develop, manufacture, and sell automatic test systems and solutions used to test complex electronics in the consumer electronics, automotive, computing, telecommunications, and aerospace and defense industries. Our automatic test equipment products and services include:

• semiconductor test (“Semiconductor Test”) systems; and

• military/aerospace (“Mil/Aero”) test instrumentation and systems, hard disk drive test (“HDD”) systems, circuit-board test and inspection (“Commercial Board Test”) systems, and automotive diagnostic and test (“Diagnostic Solutions”) systems (collectively these products represent “Systems Test Group”).

We have a broad customer base which includes integrated device manufacturers (“IDMs”), outsourced sub-assembly and test providers (“OSATs”), wafer foundries, fabless companies that design, but contract with others for the manufacture of integrated circuits (“ICs”), manufacturers of circuit boards, automotive companies, HDD manufacturers, aerospace and military contractors as well as the United States Department of Defense.

The sales of our products and services are dependent, to a large degree, on customers who are subject to cyclical trends in the demand for their products. These cyclical periods have had, and will continue to have, a significant effect on our business since our customers often delay or accelerate purchases in reaction to changes in their businesses and to demand fluctuations in the semiconductor industry. Historically, these demand fluctuations have resulted in significant variations in our results of operations. This was particularly relevant beginning in the fourth quarter of fiscal year 2008 where we saw a significant decrease in revenue in our Semiconductor Test business which was impacted by the deteriorating global economy, which negatively impacted the entire semiconductor industry. The sharp swings in the semiconductor industry in recent years have generally affected the semiconductor test equipment and services industry more significantly than the overall capital equipment sector.

In response to the business downturn, we implemented significant permanent and temporary cost reduction measures. We reduced headcount worldwide, cut capital spending, and imposed temporary salary reductions and furloughs on our workforce. Due to the continued improvement in our business, we removed the temporary salary reductions and furloughs by the end of last year. We believe the permanent cost-cutting measures we took in the last two years will be of long term value.

Commencing in the fourth quarter of 2009, we have experienced improvement in our Semiconductor Test business. We believe our acquisitions of Nextest and Eagle Test and our entry into the high speed memory and HDD markets have enhanced our opportunities for growth. We will continue to invest in our business to expand further our addressable markets while tightly managing our costs. As the last four quarters have demonstrated, with our current cost structure, we can achieve significantly higher profitability than we achieved at comparable revenue levels in the past.

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Critical Accounting Policies and Estimates

We have identified the policies which are critical to understanding our business and our results of operations. Except as stated below, management believes that there have been no significant changes during the nine months ended October 3, 2010 to the items disclosed as our critical accounting policies and estimates in Management’s Discussion and Analysis of Financial Condition and Results of Operations in its Annual Report on Form 10-K for the fiscal year ended December 31, 2009.

Revenue Recognition

In October 2009, the Financial Accounting Standards Board (“FASB”) amended the accounting standards for revenue recognition to remove tangible products containing non-software and software components that function together to deliver the product’s essential functionality from the scope of industry-specific software revenue recognition guidance. In October 2009, the FASB also amended the accounting standards for arrangements with multiple deliverables. We elected to early adopt this accounting guidance at the beginning of our first quarter of 2010 on a prospective basis. Adoption had no material impact on our financial position or results of operations in the three and nine months ended October 3, 2010.

We recognize revenue when there is persuasive evidence of an arrangement, title and risk of loss have passed, delivery has occurred or the services have been rendered, the sales price is fixed or determinable and collection of the related receivable is reasonably assured. Title and risk of loss generally pass to our customers upon shipment or at delivery destination point. In circumstances where either title or risk of loss pass upon destination, acceptance or cash payment, we defer revenue recognition until such events occur.

Our equipment has non-software and software components that function together to deliver the equipment’s essential functionality. Revenue is recognized upon shipment or at delivery destination point, provided that customer acceptance criteria can be demonstrated prior to shipment. Certain contracts require us to perform tests of the product to ensure that performance meets the published product specifications or customer requested specifications, which are generally conducted prior to shipment. Where the criteria cannot be demonstrated prior to shipment, revenue is deferred until customer acceptance has been received. We also defer the portion of the sales price that is not due until acceptance, which represents deferred profit.

For multiple element arrangements, we allocate revenue to all deliverables based on their relative selling prices. In such circumstances, a hierarchy is used to determine the selling price for allocating revenue to deliverables as follows: (i) vendor-specific objective evidence of selling price (“VSOE”), (ii) third-party evidence of selling price (“TPE”), and (iii) best estimate of the selling price (“BESP”). For a delivered item to be considered a separate unit, the delivered item must have value to the customer on a standalone basis and the delivery or performance of the undelivered item must be considered probable and substantially in our control.

Our post-shipment obligations include installation, training services, one-year standard warranties, and extended warranties. Installation does not alter the product capabilities, does not require specialized skills or tools and can be performed by the customers or other vendors. Installation is typically provided within five days of product shipment and is completed within one to two days thereafter. Training services are optional and do not affect the customer’s ability to use the product. We defer revenue for the selling price of installation and training.

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SELECTED RELATIONSHIPS WITHIN THE CONDENSED CONSOLIDATED

STATEMENTS OF OPERATIONS

	For the Three Months Ended						For the Nine Months Ended
	October 3, 2010			October 4, 2009			October 3, 2010			October 4, 2009
Percentage of total net revenues:
Net revenue:
Products		87	%		78	%		85	%		70	%
Services		13			22			15			30
Total net revenues		100			100			100			100
Cost of revenues:
Cost of products		38			48			38			50
Cost of services		7			11			8			16
Total cost of revenues		45			59			45			66
Gross profit		55			41			55			34
Operating expenses:
Engineering and development		10			15			12			22
Selling and administrative		12			18			14			27
Acquired intangible asset amortization		1			3			2			4
Restructuring and other, net		0			2			0			7
Total operating expenses		23			38			27			60
Income (loss) from operations		31			3			28			(26	)
Interest & other		(1	)		(1	)		(1	)		(3	)
Income (loss) before income taxes		31			2			26			(29	)
Provision (benefit) for income taxes		1			(1	)		2			(2	)
Net income (loss)		29	%		3	%		25	%		(27	)%
Provision/benefit for income taxes as percentage of income (loss) before income taxes		4	%		(29	)%		6	%		(7	)%

Results of Operations

Third Quarter 2010 Compared to Third Quarter 2009

Book to Bill Ratio

Book to bill ratio is calculated as net bookings divided by net sales. Book to bill ratio by reportable segment was as follows:

	For the Three Months Ended
	October 3, 2010		October 4, 2009
Semiconductor Test		0.6		1.3
Systems Test Group		1.7		0.6
Total Company		0.7		1.1

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Revenue

Net revenues for our two reportable segments were as follows:

	For the Three Months Ended				Dollar Change
	October 3, 2010		October 4, 2009
	(in millions)
Semiconductor Test	$	448.3	$	173.1	$	275.2
Systems Test Group		53.8		89.1		(35.3	)
	$	502.1	$	262.2	$	239.9

Net revenues increased by $239.9 million or 92%, primarily due to the increase in Semiconductor Test revenue of $275.2 million or 159%, as a result of higher sales across all System-on-Chip products with power management, microcontroller and mobile/wireless being the strongest. Systems Test Group revenue was down by $35.3 million or 40%, primarily due to the decrease in sales of HDD test systems.

Our revenues by region as a percentage of total net revenue were as follows:

	For the Three Months Ended
	October 3, 2010			October 4 2009
Malaysia		21	%		15	%
Taiwan		15			15
United States		13			19
China		11			7
Philippines		11			2
Singapore		9			12
Korea		8			5
Europe		6			7
Japan		5			6
Thailand		—			11
Rest of World		1			1
		100	%		100	%

Gross Profit

Our gross profit was as follows:

	For the Three Months Ended						Dollar/Point Change
	October 3,  2010			October 4,  2009
	(in millions)
Gross Profit	$	275.8		$	106.8		$	169.0
Percent of Total Revenue		54.9	%		40.7	%		14.2

Gross profit as a percentage of revenue increased 14.2 percentage points. This increase was the result of an increase of 8.3 points from higher sales volume and an increase of 7.7 points related to product mix. These increases were partially offset by a decrease of 1.8 points primarily due to higher variable compensation.

We assess the carrying value of our inventory on a quarterly basis by estimating future demand and comparing that demand against on-hand and on-order inventory positions. Forecasted revenue information is obtained from the sales and marketing groups and incorporates factors such as backlog and future revenue

29

demand. This quarterly process identifies obsolete and excess inventory. Obsolete inventory, which represents items for which there is no demand, is fully reserved. Excess inventory, which represents inventory items that are not expected to be consumed during the next four quarters, is written-down to estimated net realizable value.

During the three months ended October 3, 2010, we recorded an inventory provision of $3.7 million included in cost of revenues, due to the downward revisions to previously forecasted demand levels. Of the $3.7 million of total excess and obsolete provisions recorded in the three months ended October 3, 2010, $3.5 million was related to Semiconductor Test and $0.2 million was related to Systems Test Group.

During the three months ended October 4, 2009, we recorded an inventory provision of $6.0 million included in cost of revenues, due to the following factors:

• Downward revisions to previously forecasted demand levels as a result of economic conditions experienced in the semiconductor industry in the third quarter of 2009 resulted in an inventory provision of $3.5 million for inventory not expected to be consumed; and

• A decline in demand versus forecast for our Liquid Crystal Display (“LCD”) test product due to the global economic downturn, lower product pricing by competitors, the introduction of a new product by a competitor and consolidation among a number of the expected buyers of the product, resulted in an inventory provision of $2.5 million.

Of the $6.0 million of total excess and obsolete provisions recorded in the three months ended October 4, 2009, $5.2 million was related to Semiconductor Test and $0.8 million was related to Systems Test Group.

During the three months ended October 3, 2010 and October 4, 2009, we scrapped $1.6 million and $27.0 million of inventory, respectively. During the three months ended October 3, 2010 and October 4, 2009, we sold $1.3 million and $0.6 million, respectively, of previously written-down or written-off inventory. As of October 3, 2010, we had inventory related reserves for amounts which had been written-down or written-off totaling $127.8 million. We have no pre-determined timeline to scrap the remaining inventory.

Engineering and Development

Engineering and development expenses were as follows:

	For the Three Months Ended						Dollar Change
	October 3, 2010			October 4 2009
	(in millions)
Engineering and Development	$	50.1		$	38.3		$	11.8
Percent of Total Revenue		10.0	%		14.6	%

The increase of $11.8 million in engineering and development expenses is due primarily to an $8.5 million increase in variable compensation, $1.5 million due to increased project spending and $1.8 million from the restoration of temporary pay cuts.

Selling and Administrative

Selling and administrative expenses were as follows:

	For the Three Months Ended						Dollar Change
	October 3, 2010			October 4, 2009
	(in millions)
Selling and Administrative	$	61.1		$	46.3		$	14.8
Percent of Total Revenue		12.2	%		17.7	%

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The increase of $14.8 million in selling and administrative expenses is due primarily to a $13.0 million increase in variable compensation, and $2.9 million from the restoration of temporary pay cuts, partially offset by a $1.1 million decrease in spending related to cost reduction initiatives taken in 2009.

Restructuring and Other, Net

Restructuring

In response to a downturn in the industry, we initiated restructuring activities across all segments to reduce costs, principally through headcount reductions and facility consolidations. The tables below represent activities related to these actions. The remaining accrual for severance and benefits is reflected in the accrued employees’ compensation and withholdings account on the balance sheet and is expected to be paid by the end of 2010. The remaining accrual for lease payments on vacated facilities is reflected in the other accrued liabilities account and the long-term other accrued liabilities account and is expected to be paid over the lease terms, the latest of which expires in 2013. We expect to pay approximately $2.2 million against the lease accruals over the next twelve months. Our future lease commitments are net of expected sublease income of $1.6 million as of October 3, 2010.

Severance and Benefits:

	Pre-2009 Actions			Q1 2009 Actions			Q2 2009 Actions			Q1 2010 Actions			Q2 2010 Actions			Q3 2010 Actions			Total
	(in thousands)
Balance at December 31, 2008	$	5,423		$	—		$	—		$	—		$	—		$	—		$	5,423
Provision		—			17,630			15,940			—			—			—			33,570
Cash payments		(5,423	)		(17,630	)		(13,035	)		—			—			—			(36,088	)
Balance at December 31, 2009		—			—			2,905			—			—			—			2,905
Provision		—			—			—			766			—			—			766
Change in estimate		—			—			498			—			—			—			498
Cash payments		—			—			(2,079	)		(573	)		—			—			(2,652	)
Balance at April 4, 2010		—			—			1,324			193			—			—			1,517
Provision		—			—			—			—			845			—			845
Change in estimate		—			—			(96	)		(5	)		—			—			(101	)
Cash payments		—			—			(695	)		(188	)		(387	)		—			(1,270	)
Balance at July 4, 2010		—			—			533			—			458			—			991
Provision		—			—			—			—			209			1,400			1,609
Change in estimate		—			—			(118	)		—			—			—			(118	)
Cash payments		—			—			(284	)		—			(177	)		(187	)		(648	)
Balance at October 3, 2010	$	—		$	—		$	131		$	—		$	490		$	1,213		$	1,834

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Facility Exit Costs:

	Pre-2009 Actions			Q3 2009 Actions			Q2 2010 Actions		Total
	(in thousands)
Balance at December 31, 2008	$	9,303		$	—		$	—	$	9,303
Provision		—			4,420			—		4,420
Change in estimate		(417	)		—			—		(417	)
Cash payments		(2,645	)		(285	)		—		(2,930	)
Other		—			100			—		100
Balance at December 31, 2009		6,241			4,235			—		10,476
Cash payments		(468	)		(272	)		—		(740	)
Balance at April 4, 2010		5,773			3,963			—		9,736
Provision		—			—			815		815
Cash payments		(553	)		(264	)		—		(817	)
Balance at July 4, 2010		5,220			3,699			815		9,734
Change in estimate		(2,367	)		—			—		(2,367	)
Cash payments		(1,881	)		(493	)		—		(2,374	)
Balance at October 3, 2010	$	972		$	3,206		$	815	$	4,993

During the three months ended October 3, 2010, we recorded restructuring charges related to ongoing efforts to lower expenses and our cost structure and credits related to an early exit of previously impaired facilities. The restructuring activity consisted of the following:

Q3 2010 Actions:

• $1.4 million of severance charges related to headcount reductions of approximately 22 people in Systems Test Group.

Q2 2010 Actions:

• $0.2 million of additional severance charges related to headcount reductions in Systems Test Group.

Q2 2009 Actions:

• $(0.1) million credits related to a change in the estimated severance benefits related to headcount reduction activities across both segments. Pre-2009 Actions:

• $(2.4) million credit related to the early exit of previously impaired leased facilities in Westford, Massachusetts.

During the three months ended October 4, 2009, Teradyne recorded restructuring charges related to ongoing efforts to lower expenses and its cost structure in light of the industry wide decline in orders for semiconductor equipment. The restructuring charges consisted of the following activities:

Q3 2009 Actions:

• $4.4 million of charges across both segments related to the early exit of leased facilities in North Reading, Massachusetts and Novi, Michigan.

Q2 2009 Actions:

• $1.3 million of additional severance charges related to headcount reductions across both segments.

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Other

During the three months ended October 4, 2009, Teradyne recorded $(0.5) million of credits related to finalization of certain Eagle Test purchase accounting items.

Interest and Other

Interest income increased by $0.5 million from the third quarter of 2009 to 2010. Interest expense and other increased by $1.0 million from the third quarter of 2009 to 2010. Interest expense and other for the third quarter of 2010 included $4.9 million of interest expense related to our convertible debt. Interest expense and other for the third quarter of 2009 included $4.3 million of interest expense related to our convertible debt.

Income Taxes

For the three months ended October 3, 2010, we recorded a tax provision of $6.7 million, which consisted primarily of foreign taxes. For the three months ended October 4, 2009, we recorded a tax benefit of $1.5 million primarily due to tax refunds recorded for U.S. loss carrybacks. Due to the continued uncertainty of realization, we have maintained our valuation allowance at October 3, 2010 for deferred tax assets in the U.S. and Singapore. We do not expect to significantly reduce our valuation allowance until sufficient positive evidence exists, including sustained profitability, that realization is more likely than not.

Nine Months of 2010 Compared to Nine Months of 2009

Revenue

Net revenues for our two reportable segments were as follows:

	For the Nine Months Ended				Dollar Change
	October 3, 2010		October 4, 2009
	(in millions)
Semiconductor Test	$	1,151.0	$	354.5	$	796.5
Systems Test Group		135.5		197.9		(62.4	)
	$	1,286.5	$	552.4	$	734.1

Net revenues increased by $734.1 million or 133%, primarily due to the increase in Semiconductor Test revenue of $796.5 million or 225%, as a result of higher sales across all System-on-Chip products with power management, microcontroller and mobile/wireless being the strongest. System Test Group revenue was down by $62.4 million or 32%, primarily due to the decrease in sales of HDD test systems and Mil/Aero test instrumentation.

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Our revenues by region as a percentage of total net revenue were as follows:

	For the Nine Months Ended
	October 3, 2010			October 4, 2009
Taiwan		20	%		13	%
United States		14			26
Malaysia		13			9
Philippines		11			3
Singapore		10			10
China		9			5
Europe		7			10
Korea		7			4
Japan		5			7
Thailand		3			11
Rest of World		1			2
		100	%		100	%

Gross Profit

Our gross profit was as follows:

	For the Nine Months Ended						Dollar/Point Change
	October 3, 2010			October 4, 2009
	(in millions)
Gross Profit	$	703.6		$	187.2		$	516.4
Percent of Total Revenue		54.7	%		33.9	%		20.8

Gross profit as a percentage of revenue increased 20.8 percentage points. This increase was the result of an increase of 13.9 points from higher sales volume and an increase of 8.2 points related to product mix. These increases were partially offset by a decrease of 1.3 points primarily due to higher variable compensation.

We assess the carrying value of our inventory on a quarterly basis by estimating future demand and comparing that demand against on-hand and on-order inventory positions. Forecasted revenue information is obtained from the sales and marketing groups and incorporates factors such as backlog and future revenue demand. This quarterly process identifies obsolete and excess inventory. Obsolete inventory, which represents items for which there is no demand, is fully reserved. Excess inventory, which represents inventory items that are not expected to be consumed during the next four quarters, is written-down to estimated net realizable value.

During the nine months ended October 3, 2010, we recorded an inventory provision of $5.4 million included in cost of revenues, due to the downward revisions to previously forecasted demand levels. Of the $5.4 million of total excess and obsolete provisions recorded in the nine months ended October 3, 2010, $4.0 million was related to Semiconductor Test and $1.4 million was related to Systems Test Group.

During the nine months ended October 4, 2009, we recorded an inventory provision of $23.7 million included in cost of revenues, due to the following factors:

• Downward revisions to previously forecasted demand levels as a result of worsening economic conditions experienced in the semiconductor and automotive industries in the first nine months of 2009 resulted in an inventory provision of $15.1 million for inventory not expected to be consumed; and

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• A decline in demand versus forecast for our Liquid Crystal Display (“LCD”) test product due to the global economic downturn, lower product pricing by competitors, the introduction of a new product by a competitor and consolidation among a number of the expected buyers of the product, resulted in an inventory provision of $5.9 million; and

• During late 2008, we introduced the next versions of our Nextest Magnum memory test product. At that time, it was anticipated that demand would continue for the existing version of the product within its installed base of customers. An overall decline in the memory market combined with a portion of our customers accelerating their purchasing of the newer version of the product resulted in an inventory provision of $2.7 million.

Of the $23.7 million of total excess and obsolete provisions recorded in the nine months ended October 4, 2009, $17.0 million was related to Semiconductor Test and $6.7 million was related to Systems Test Group.

During the nine months ended October 3, 2010 and October 4, 2009, we scrapped $3.7 million and $29.0 million of inventory, respectively. During the nine months ended October 3, 2010, we sold $6.5 million of previously written-down or written-off inventory. As of October 3, 2010, we had inventory related reserves for amounts which had been written-down or written-off totaling $127.8 million. We have no pre-determined timeline to scrap the remaining inventory.

Engineering and Development

Engineering and development expenses were as follows:

	For the Nine Months Ended						Dollar Change
	October 3, 2010			October 4, 2009
	(in millions)
Engineering and Development	$	149.6		$	123.9		$	25.7
Percent of Total Revenue		11.6	%		22.4	%

The increase of $25.7 million in engineering and development expenses is due primarily to a $19.5 million increase in variable compensation and $6.2 million increase from the restoration of temporary pay cuts.

Selling and Administrative

Selling and administrative expenses were as follows:

	For the Nine Months Ended						Dollar Change
	October 3, 2010			October 4, 2009
	(in millions)
Selling and Administrative	$	175.3		$	148.9		$	26.4
Percent of Total Revenue		13.6	%		27.0	%

The increase of $26.4 million in selling and administrative expenses is due primarily to a $27.6 million increase in variable compensation and $9.9 million from the restoration of temporary pay cuts, offset by an $11.1 million decrease in other spending related to workforce reductions and other cost reduction initiatives taken in 2009.

Restructuring and Other, Net

Restructuring

In response to a downturn in the industry, we initiated restructuring activities across all segments to reduce costs, principally through headcount reductions and facility consolidations. The tables below represent activity

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related to these actions. The remaining accrual for severance and benefits is reflected in the accrued employees’ compensation and withholdings account on the balance sheet and is expected to be paid by the end of 2010. The remaining accrual for lease payments on vacated facilities is reflected in the other accrued liabilities account and the long-term other accrued liabilities account and is expected to be paid over the lease terms, the latest of which expires in 2013. We expect to pay approximately $2.2 million against the lease accruals over the next twelve months. Our future lease commitments are net of expected sublease income of $1.6 million as of October 3, 2010.

Severance and Benefits:

	Pre-2009 Actions			Q1 2009 Actions			Q2 2009 Actions			Q1 2010 Actions			Q2 2010 Actions			Q3 2010 Actions			Total
	(in thousands)
Balance at December 31, 2008	$	5,423		$	—		$	—		$	—		$	—		$	—		$	5,423
Provision		—			17,630			15,940			—			—			—			33,570
Cash payments		(5,423	)		(17,630	)		(13,035	)		—			—			—			(36,088	)
Balance at December 31, 2009		—			—			2,905			—			—			—			2,905
Provision		—			—			—			766			—			—			766
Change in estimate		—			—			498			—			—			—			498
Cash payments		—			—			(2,079	)		(573	)		—			—			(2,652	)
Balance at April 4, 2010		—			—			1,324			193			—			—			1,517
Provision		—			—			—			—			845			—			845
Change in estimate		—			—			(96	)		(5	)		—			—			(101	)
Cash payments		—			—			(695	)		(188	)		(387	)		—			(1,270	)
Balance at July 4, 2010		—			—			533			—			458			—			991
Provision		—			—			—			—			209			1,400			1,609
Change in estimate		—			—			(118	)		—			—			—			(118	)
Cash payments		—			—			(284	)		—			(177	)		(187	)		(648	)
Balance at October 3, 2010	$	—		$	—		$	131		$	—		$	490		$	1,213		$	1,834

Facility Exit Costs:

	Pre-2009 Actions			Q3 2009 Actions			Q2 2010 Actions		Total
	(in thousands)
Balance at December 31, 2008	$	9,303		$	—		$	—	$	9,303
Provision		—			4,420			—		4,420
Change in estimate		(417	)		—			—		(417	)
Cash payments		(2,645	)		(285	)		—		(2,930	)
Other		—			100			—		100
Balance at December 31, 2009		6,241			4,235			—		10,476
Cash payments		(468	)		(272	)		—		(740	)
Balance at April 4, 2010		5,773			3,963			—		9,736
Provision		—			—			815		815
Cash payments		(553	)		(264	)		—		(817	)
Balance at July 4, 2010		5,220			3,699			815		9,734
Change in estimate		(2,367	)		—			—		(2,367	)
Cash payments		(1,881	)		(493	)		—		(2,374	)
Balance at October 3, 2010	$	972		$	3,206		$	815	$	4,993

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During the nine months ended October 3, 2010, we recorded restructuring charges related to ongoing efforts to lower expenses and our cost structure and an additional charge due to a change in estimated severance benefits related to a prior period activity. The restructuring charges consisted of the following activities:

Q1 2010 Actions:

• $0.8 million of severance charges related to headcount reductions of approximately 14 people, of which $0.4 million and 10 people were in Systems Test Group and $0.4 million and 4 people were in Semiconductor Test.

Q2 2010 Actions:

• $1.0 million of severance charges related to headcount reductions of approximately 10 people in Systems Test Group; and

• $0.8 million of facility charges in Systems Test Group related to the early exit of leased facilities in Kontich, Belgium and Stockport, United Kingdom.

Q3 2010 Actions:

• $1.4 million of severance charges related to headcount reductions of approximately 22 people in Systems Test Group.

Q2 2009 Actions:

• $0.3 million related to a change in the estimated severance benefits related to headcount reduction activities across both segments.

Pre-2009 Actions:

• $(2.4) million credit related to the early exit of previously impaired leased facilities in Westford, Massachusetts.

During the nine months ended October 4, 2009, we recorded restructuring charges related to ongoing efforts to lower expenses and our cost structure in light of the industry wide decline in orders for semiconductor equipment. The restructuring charges consisted of the following activities:

Q3 2009 Actions:

• $4.4 million of charges across both segments related to the early exit of a leased facilities in North Reading, Massachusetts and Novi, Michigan.

Q2 2009 Actions:

• $14.1 million of severance charges related to headcount reductions of approximately 316 people, of which $9.7 million and 267 people were in Semiconductor Test, $2.7 million and 25 people were in Corporate, and $1.7 million and 24 people were in Systems Test Group.

Q1 2009 Actions:

• $17.6 million of severance charges related to headcount reductions of approximately 518 people, of which $14.9 million and 460 people were in Semiconductor Test, $1.9 million and 42 people were in Systems Test Group, and $0.8 million and 16 people were in Corporate.

Other

During the nine months ended October 4, 2009, we recorded the following activity:

• $1.1 million of long-lived asset impairment charges across both segments primarily related to disposal of fixed assets as a result of the consolidation of our facilities in North Reading, Massachusetts; and

• $(2.0) million of credits related to finalization of certain Eagle Test purchase accounting items.

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Interest and Other

Interest income increased by $3.1 million from the first nine months of 2009 to 2010 due primarily to a gain from the sale of auction rate securities of $2.7 million. Interest expense and other increased by $1.5 million from the first nine months of 2009 to 2010 due primarily to a loss of $2.7 million on the exercise of the auction rate securities related UBS Put and $5.4 million increase in interest expense related to our convertible note, partially offset by a $0.7 million decrease in realized and other–than-temporary impairment losses on our marketable securities and $1.4 million decrease in foreign exchange losses. In addition, the first nine months of 2009 included $2.1 million of interest expense related to the revolving credit facility and $2.5 million other expense related to the write off of the remaining debt issue costs due to the termination of our revolving credit facility agreement.

Income Taxes

For the nine months ended October 3, 2010, we recorded a tax provision of $21.0 million, which consisted primarily of foreign taxes. For the nine months ended October 4, 2009, we recorded a tax benefit of $11.5 million primarily due to benefiting operating losses in foreign jurisdictions. Due to the continued uncertainty of realization, we have maintained our valuation allowance at October 3, 2010 for deferred tax assets in the U.S. and Singapore. We do not expect to significantly reduce our valuation allowance until sufficient positive evidence exists, including sustained profitability, that realization is more likely than not.

Contractual Obligations

The following table reflects our contractual obligations as of October 3, 2010:

Payments Due by Period	Purchase Commitments		Non-cancelable Lease Commitments(1)		Debt		Interest on Debt		Pension Contributions		Total
	(in thousands)
2010	$	232,900	$	4,035	$	—	$	—	$	1,172	$	238,107
2011		—		11,556		2,396		8,658		—		22,610
2012		—		9,632		2,396		8,625		—		20,653
2013		—		6,324		2,396		8,592		—		17,312
2014		—		4,889		191,198		4,307		—		200,394
Beyond 2014		—		4,811		—		—		—		4,811
Total	$	232,900	$	41,247	$	198,386	$	30,182	$	1,172	$	503,887

(1) Non-cancelable lease payments have not been reduced by sublease income of $1.6 million due in the future under non-cancelable sublease agreements.

As of October 3, 2010, the total amount of unrecognized tax benefit for uncertain tax positions and the accrual for the related interest, net of the federal benefit, was $9.1 million and $1.4 million, respectively, and was included in long-term other accrued liabilities. We are unable to make a reasonably reliable estimate of when a cash settlement will occur with tax authorities as the timing of examinations and ultimate resolutions of those examinations is uncertain.

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Liquidity and Capital Resources

Our cash, cash equivalents and marketable securities balance increased by $380.5 million in the first nine months of 2010 to $899.3 million. Cash activity for the first nine months of 2010 and 2009 was as follows:

	For the Nine Months Ended
	October 3, 2010			October 4, 2009
	(in millions)
Cash provided by operating activities:
Net income (loss), adjusted for non-cash items	$	424.7		$	(19.1	)
Change in operating assets and liabilities, net of businesses acquired		(34.7	)		75.2
Total cash provided by operating activities		390.0			56.1
Total cash used for investing activities		(412.5	)		(37.6	)
Total cash provided by financing activities		39.9			64.6
Effects on exchange rate changes on cash and cash equivalents		(0.2	)		0.9
Increase in cash and cash equivalents	$	17.2		$	84.0

In the nine months ended October 3, 2010, changes in operating assets and liabilities, net of businesses acquired, used cash of $34.7 million. This was due to a $169.6 million increase in operating assets and a $134.9 million increase in operating liabilities. The increase in operating assets was due to an increase in accounts receivable of $181.3 million due to higher sales volume, partially offset by a $10.8 million decrease in inventories, and a decrease in other current assets of $0.9 million. The increase in operating liabilities was due to a $68.4 million increase in customer advance payments, a $7.2 million increase in deferred revenue, a $50.8 million decrease in pension liabilities due to pension contributions, a $4.3 million decrease in other accrued expenses due to convertible note interest payments, partially offset by a $66.6 million increase in accounts payable, a $30.1 million increase in accrued employee compensation due to higher variable compensation, a $14.6 million increase in accrued income taxes, and a $6.6 million increase in other accrued liabilities.

Investing activities during the nine months ended October 3, 2010 used cash of $412.5 million, due to $478.3 million used for purchases of marketable securities and $54.0 million used for purchases of property, plant and equipment, partially offset by proceeds from sales of marketable securities that provided cash of $118.6 million, and proceeds from life insurance that provided cash of $1.1 million.

Financing activities during the nine months ended October 3, 2010 provided cash of $39.9 million, $42.2 million was from the issuance of common stock under stock option and stock purchase plans which was offset by $2.3 million of cash used for a payment on a long-term debt related to the Japan loan.

In the nine months ended October 4, 2009, changes in operating assets and liabilities, net of businesses acquired, provided cash of $75.2 million. This was due to a decrease in operating assets of $11.2 million and an increase in operating liabilities of $64.0 million. The decrease in operating assets consisted mainly of a decrease in inventory of $45.9 million partially offset by an increase of $30.0 million in accounts receivable due to higher sales volume. The increase in operating liabilities consisted of an increase in advanced customer payments, accounts payable, deferred revenue and other accrued expenses of $69.7 million partially offset by retirement plan contributions of $5.7 million.

Investing activities in the nine months ended October 4, 2009 used cash of $37.6 million due to investments in property, plant and equipment of $26.6 million, payment of transaction fees related to the Eagle Test acquisition of $3.7 million and purchases of marketable securities of $31.5 million, partially offset by sales of marketable securities that provided cash of $23.1 million and proceeds from life insurance policies that provided cash of $1.1 million.

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During the nine months ended October 4, 2009, financing activities provided cash of $64.6 million due to approximately $163.0 million of net proceeds from the issuance of the senior convertible notes, $10.0 million of long-term debt proceeds from a loan in Japan and $15.3 million from the issuance of common stock under stock option and stock purchase plans. These increases were partially offset by $122.5 million of cash used for the repayment of our revolving credit facility and $1.1 million of cash used for principal payment on long-term debt.

We believe our cash, cash equivalents and marketable securities balance of $899.3 million will be sufficient to meet working capital and expenditure needs for at least the next twelve months. Inflation has not had a significant long-term impact on earnings.

Equity Compensation Plans

As discussed in “Note N: Stock Based Compensation” in our 2009 Form 10-K, we have a 1996 Employee Stock Purchase Plan and a 2006 Equity and Cash Compensation Incentive Plan (the “2006 Equity Plan”).

The purpose of the 1996 Employee Stock Purchase Plan is to encourage stock ownership by all eligible employees of Teradyne. The purpose of the 2006 Equity Plan is to provide equity ownership and compensation opportunities in Teradyne to our employees, officers, directors, consultants and/or advisors. Both plans were approved by our shareholders.

Recently Issued Accounting Pronouncements

In March 2010, FASB issued an Accounting Standards Update 2010-17, “Milestone Method of Revenue Recognition”, to Accounting Standards Codification 605, “Revenue Recognition.” The guidance in this consensus allows the milestone method as an acceptable revenue recognition methodology when an arrangement includes substantive milestones. The guidance provides a definition of substantive milestone and should be applied regardless of whether the arrangement includes single or multiple deliverables or units of accounting. The scope of this consensus is limited to the transactions involving milestones relating to research and development deliverables. The guidance includes enhanced disclosure requirements about each arrangement, individual milestones and related contingent consideration, information about substantive milestones and factors considered in the determination. The consensus is effective prospectively to milestones achieved in fiscal years, and interim periods within those years, after June 15, 2010. Early application and retrospective application are permitted. We will adopt this final consensus prospectively in January 2011 and the adoption is not expected to have a material impact on our financial position or results of operations.

Item 3: Quantitative and Qualitative Disclosures about Market Risk

For “Quantitative and Qualitative Disclosures about Market Risk” affecting Teradyne, see Item 7a. “Quantitative and Qualitative Disclosures about Market Risks,” in our Annual Report on Form 10-K filed with the SEC on March 1, 2010. There were no material changes in our exposure to market risk from those set forth in our Annual Report for the fiscal year ended December 31, 2009.

Item 4: Controls and Procedures

As of the end of the period covered by this report, our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) promulgated under the Exchange Act. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

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During the period covered by this report, there have been no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met.

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PART II. OTHER INFORMATION

Item 1: Legal Proceedings

We are subject to various legal proceedings and claims which have arisen in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on our results of operations, financial condition or cash flows.

Item 1A: Risk Factors

In addition to the other information set forth in this Form 10-Q, you should carefully consider the factors discussed in Part I, “Item 1A: Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2009, which could materially affect our business, financial condition or future results. The risk factors described in our Annual Report on Form 10-K remain applicable to our business. The risks described in our Annual Report on Form 10-K are not the only risks that we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

Item 2: Unregistered Sales of Equity Securities and Use of Proceeds

In November 2007, Teradyne’s Board of Directors (the “Board”) authorized a $400 million stock repurchase program. During the three months ended October 3, 2010, Teradyne did not repurchase any shares of common stock. The cumulative repurchases as of October 3, 2010 total 8.5 million shares of common stock for $102.6 million at an average price of $12.14 per share. As of November 4, 2008, the Board suspended the stock repurchase program.

The following table includes information with respect to repurchases we made of our common stock during the quarter ended October 3, 2010 (in thousands):

Period	(a) Total Number of Shares (or units) Purchased		(b) Average Price Paid per Share (or Unit)		(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that may Yet Be Purchased Under the Plans or Programs
July 5, 2010 – August 1, 2010		—	$	—		—	$	297,375
August 2, 2010 – August 29, 2010		—	$	—		—	$	297,375
August 30, 2010 – October 3, 2010		—	$	—		—	$	297,375

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Item 6: Exhibits

Exhibit Number	Description
31.1	Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
31.2	Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
32.1	Certification pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
32.2	Certification pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema Document
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*	XBRL Taxonomy Extension Label Linkbase Document
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase Document

* XBRL (Extensible Business Reporting Language) information is furnished and not filed or a part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

TERADYNE, INC.

Registrant

/s/    GREGORY R. BEECHER        

Gregory R. Beecher

Vice President,

Chief Financial Officer and Treasurer

(Duly Authorized Officer
and Principal Financial Officer)

November 10, 2010

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