Property, Plant and Equipment Disclosure
Asset Age Ratios (Summary)
Average Age
Estimated Total Useful Life
Estimated Age, Time Elapsed Since Purchase
Estimated Remaining Life

Teradyne Inc., balance sheet: property, plant and equipment

US$ in thousands

	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020	Dec 31, 2019
Land	19,487)	18,481)	17,207)	17,207)	16,561)
Buildings	127,705)	128,991)	126,468)	108,221)	107,282)
Machinery, equipment and software	1,047,235)	1,059,880)	994,828)	956,035)	834,970)
Furniture and fixtures	28,093)	29,929)	28,743)	28,487)	29,157)
Leasehold improvements	66,777)	64,631)	64,110)	61,276)	59,378)
Construction in progress	54,799)	22,470)	8,105)	13,098)	2,537)
Property, plant and equipment, gross	1,344,096)	1,324,382)	1,239,461)	1,184,324)	1,049,885)
Accumulated depreciation	(898,604)	(905,699)	(852,221)	(789,524)	(729,669)
Property, plant and equipment, net	445,492)	418,683)	387,240)	394,800)	320,216)

Based on: 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31).

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Item	Description	The company
Property, plant and equipment, gross	Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.	Teradyne Inc. property, plant and equipment, gross increased from 2021 to 2022 and from 2022 to 2023.
Property, plant and equipment, net	Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.	Teradyne Inc. property, plant and equipment, net increased from 2021 to 2022 and from 2022 to 2023.

Teradyne Inc., asset age ratios

	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020	Dec 31, 2019
Average age ratio	67.84%	69.35%	69.73%	67.65%	70.61%
Estimated total useful life (years)	14	14	13	15	15
Estimated age, time elapsed since purchase (years)	10	10	9	10	10
Estimated remaining life (years)	5	4	4	5	4

Based on: 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31).

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Asset age ratio	Description	The company
Average age ratio	As long as straight-line depreciation is used, this is an accurate estimate of asset age as a percentage of depreciable life. The relative age is a useful measure of whether the company fixed asset base is old or new. Newer assets are likely to be more efficient.	Teradyne Inc. average age ratio of depreciable property, plant and equipment improved from 2021 to 2022 and from 2022 to 2023.
Estimated total useful life	Over longer time periods, this ratio is a useful measure of company depreciation policy and can be used for comparisons with competitors.	Teradyne Inc. estimated total useful life of depreciable property, plant and equipment increased from 2021 to 2022 but then slightly decreased from 2022 to 2023.
Estimated time elapsed since purchase	The approximate age in years of a company fixed assets. Useful for comparison purposes.	Teradyne Inc. estimated time elapsed since purchase of depreciable property, plant and equipment deteriorated from 2021 to 2022 but then slightly improved from 2022 to 2023.
Estimated remaining life		Teradyne Inc. estimated remaining life of depreciable property, plant and equipment increased from 2021 to 2022 and from 2022 to 2023.

	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020	Dec 31, 2019
Selected Financial Data (US$ in thousands)
Accumulated depreciation	898,604)	905,699)	852,221)	789,524)	729,669)
Property, plant and equipment, gross	1,344,096)	1,324,382)	1,239,461)	1,184,324)	1,049,885)
Land	19,487)	18,481)	17,207)	17,207)	16,561)
Asset Age Ratio
Average age¹	67.84%	69.35%	69.73%	67.65%	70.61%

Based on: 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31).

2023 Calculations

¹ Average age = 100 × Accumulated depreciation ÷ (Property, plant and equipment, gross – Land)
= 100 × 898,604 ÷ (1,344,096 – 19,487) = 67.84%

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Asset age ratio	Description	The company
Average age	As long as straight-line depreciation is used, this is an accurate estimate of asset age as a percentage of depreciable life. The relative age is a useful measure of whether the company fixed asset base is old or new. Newer assets are likely to be more efficient.	Teradyne Inc. average age ratio of depreciable property, plant and equipment improved from 2021 to 2022 and from 2022 to 2023.

	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020	Dec 31, 2019
Selected Financial Data (US$ in thousands)
Property, plant and equipment, gross	1,344,096)	1,324,382)	1,239,461)	1,184,324)	1,049,885)
Land	19,487)	18,481)	17,207)	17,207)	16,561)
Depreciation of property, plant and equipment	92,118)	90,763)	91,073)	80,119)	70,834)
Asset Age Ratio (Years)
Estimated total useful life¹	14	14	13	15	15

Based on: 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31).

2023 Calculations

¹ Estimated total useful life = (Property, plant and equipment, gross – Land) ÷ Depreciation of property, plant and equipment
= (1,344,096 – 19,487) ÷ 92,118 = 14

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Asset age ratio	Description	The company
Estimated total useful life	Over longer time periods, this ratio is a useful measure of company depreciation policy and can be used for comparisons with competitors.	Teradyne Inc. estimated total useful life of depreciable property, plant and equipment increased from 2021 to 2022 but then slightly decreased from 2022 to 2023.

	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020	Dec 31, 2019
Selected Financial Data (US$ in thousands)
Accumulated depreciation	898,604)	905,699)	852,221)	789,524)	729,669)
Depreciation of property, plant and equipment	92,118)	90,763)	91,073)	80,119)	70,834)
Asset Age Ratio (Years)
Time elapsed since purchase¹	10	10	9	10	10

Based on: 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31).

2023 Calculations

¹ Time elapsed since purchase = Accumulated depreciation ÷ Depreciation of property, plant and equipment
= 898,604 ÷ 92,118 = 10

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Asset age ratio	Description	The company
Estimated time elapsed since purchase	The approximate age in years of a company fixed assets. Useful for comparison purposes.	Teradyne Inc. estimated time elapsed since purchase of depreciable property, plant and equipment deteriorated from 2021 to 2022 but then slightly improved from 2022 to 2023.

	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021	Dec 31, 2020	Dec 31, 2019
Selected Financial Data (US$ in thousands)
Property, plant and equipment, net	445,492)	418,683)	387,240)	394,800)	320,216)
Land	19,487)	18,481)	17,207)	17,207)	16,561)
Depreciation of property, plant and equipment	92,118)	90,763)	91,073)	80,119)	70,834)
Asset Age Ratio (Years)
Estimated remaining life¹	5	4	4	5	4

Based on: 10-K (reporting date: 2023-12-31), 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31).

2023 Calculations

¹ Estimated remaining life = (Property, plant and equipment, net – Land) ÷ Depreciation of property, plant and equipment
= (445,492 – 19,487) ÷ 92,118 = 5

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Asset age ratio	Description	The company
Estimated remaining life		Teradyne Inc. estimated remaining life of depreciable property, plant and equipment increased from 2021 to 2022 and from 2022 to 2023.

Teradyne Inc. (NASDAQ:TER)

Analysis of Property, Plant and Equipment

Property, Plant and Equipment Disclosure

Asset Age Ratios (Summary)

Average Age

Estimated Total Useful Life

Estimated Age, Time Elapsed since Purchase

Estimated Remaining Life