Question 1

What is Amphenol's P/B ratio?

Accepted Answer

Amphenol (APH) P/B ratio is 12.8× as of June 5, 2026. The ratio is calculated by dividing market capitalisation by book value of equity, using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/B ratio calculated?

Accepted Answer

P/B = Market Capitalisation ÷ Book Value of Equity (most recent quarterly shareholders' equity), or equivalently Share Price ÷ Book Value Per Share. All inputs are sourced from audited GAAP/IFRS filings and translated to USD using period-end exchange rates so the multiple is comparable across companies and currencies.

Question 3

What is the P/B ratio?

Accepted Answer

The price-to-book (P/B) ratio compares a company's market capitalisation to its book value of equity (total shareholders' equity) on the most recent quarterly balance sheet. It is calculated as market cap ÷ book value of equity (equivalent to share price ÷ book value per share). A P/B below 1× implies the market values the business below its accounting net worth; values well above 1× reflect intangible assets, brand value, or a high return on equity.

Question 4

What is a good P/B ratio for Amphenol?

Accepted Answer

A "good" P/B depends on the business model. Banks, insurers, and other capital-heavy financials typically trade near 1×; asset-light technology and consumer-brand companies can sustainably trade at 5×+ because much of their value is intangible. P/B is most informative when paired with return on equity (ROE). For Amphenol specifically, the relevant sector benchmark is the current sector median of 6.0×.

Question 5

Is Amphenol's P/B ratio high or low?

Accepted Answer

Amphenol's P/B ratio of 12.8× is above its own 5-year average of 8.1× and above the sector median of 6.0×. That places the current reading at the 88th percentile of its 10-year history. A higher multiple usually reflects stronger expected growth, lower perceived risk, or higher returns on capital; a lower multiple reflects the opposite.

Question 6

What is Amphenol's historical P/B ratio range?

Accepted Answer

In the available daily series, Amphenol (APH) P/B ratio has ranged from a low of 3.1× in 2008 to a high of 19.5× in 2001. The 5-year average is 8.1× and the 5-year median is 7.5×.

Question 7

What was Amphenol's P/B ratio in 2025?

Accepted Answer

Amphenol (APH) P/B ratio at the end of 2025 was 12.3×. Annual values reflect the multiple on the last trading day of each calendar year, using the trailing twelve-month book value figure available at that date.

Question 8

Why does Amphenol's P/B ratio change over time?

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (book value). Share-price changes — driven by interest rates, earnings expectations, risk appetite, and broader market sentiment — typically dominate short-term moves, while changes in the underlying fundamental drive the longer-term trend. As a result, the ratio can rise during stock-price rallies even if the business itself has not become more valuable, and fall during sell-offs even when fundamentals are improving.


2025	$165.63B	$13.41B	12.3×	+3.8×	Dec 31, 2025
2024	$83.60B	$9.79B	8.5×	+1.4×	Dec 31, 2024
2023	$59.31B	$8.35B	7.1×	+0.6×	Dec 31, 2023
2022	$45.30B	$7.02B	6.5×	-1.8×	Dec 31, 2022
2021	$52.32B	$6.30B	8.3×	+1.0×	Dec 31, 2021
2020	$39.15B	$5.38B	7.3×	+0.2×	Dec 31, 2020
2019	$32.17B	$4.53B	7.1×	+1.1×	Dec 31, 2019
2018	$24.30B	$4.02B	6.0×	-0.7×	Dec 31, 2018
2017	$26.81B	$3.99B	6.7×	+1.1×	Dec 31, 2017
2016	$20.73B	$3.67B	5.6×	+0.7×	Dec 31, 2016
2015	$16.12B	$3.24B	5.0×	-0.8×	Dec 31, 2015
2014	$16.68B	$2.91B	5.7×	+0.8×	Dec 31, 2014
2013	$14.12B	$2.86B	4.9×	+0.7×	Dec 31, 2013
2012	$10.38B	$2.43B	4.3×	+0.8×	Dec 31, 2012
2011	$7.45B	$2.17B	3.4×	-0.5×	Dec 31, 2011
2010	$9.22B	$2.32B	4.0×	-0.6×	Dec 31, 2010
2009	$7.96B	$1.75B	4.6×	+1.5×	Dec 31, 2009
2008	$4.17B	$1.35B	3.1×	-3.5×	Dec 31, 2008
2007	$8.29B	$1.26B	6.6×	+0.4×	Dec 31, 2007
2006	$5.55B	$902.99M	6.1×	+0.4×	Dec 31, 2006
2005	$3.95B	$689.24M	5.7×	-1.0×	Dec 31, 2005
2004	$3.24B	$481.60M	6.7×	-1.9×	Dec 31, 2004
2003	$2.80B	$323.41M	8.7×	-1.0×	Dec 31, 2003
2002	$1.62B	$166.98M	9.7×	-9.8×	Dec 31, 2002
2001	$2.03B	$103.93M	19.5×	—	Dec 31, 2001


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P/B Ratio for Amphenol (APH)

P/B Ratio daily chart for Amphenol (APH)

Historical P/B Ratio for Amphenol (APH) from 2001 to 2025

About P/B Ratio at Amphenol (APH)

Amphenol P/B Ratio by Year

Amphenol P/B Ratio 2025: 12.3×

Amphenol P/B Ratio 2024: 8.5×

Amphenol P/B Ratio 2023: 7.1×

Amphenol P/B Ratio 2022: 6.5×

Amphenol P/B Ratio 2021: 8.3×

Sector peers by P/B Ratio — chart

Sector peers by P/B Ratio — table

Frequently asked questions

Amphenol (APH) Key Financials

P/B Ratio daily chart for Amphenol (APH)

Historical P/B Ratio for Amphenol (APH) from 2001 to 2025

About P/B Ratio at Amphenol (APH)

Amphenol P/B Ratio by Year

Amphenol P/B Ratio 2025: 12.3×

Amphenol P/B Ratio 2024: 8.5×

Amphenol P/B Ratio 2023: 7.1×

Amphenol P/B Ratio 2022: 6.5×

Amphenol P/B Ratio 2021: 8.3×

Sector peers by P/B Ratio — chart

Sector peers by P/B Ratio — table

Frequently asked questions

+What is Amphenol's P/B ratio?

+How is the P/B ratio calculated?

+What is the P/B ratio?

+What is a good P/B ratio for Amphenol?

+Is Amphenol's P/B ratio high or low?

+What is Amphenol's historical P/B ratio range?

+What was Amphenol's P/B ratio in 2025?

+Why does Amphenol's P/B ratio change over time?

Amphenol (APH) Key Financials