Plexus (FRA:PX4) Cyclically Adjusted PB Ratio: (As of Jul. 30, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

FRA:PX4 Plexus Corp FRA:PX4
85 GF Score
Price €218.00
GF Value €137.14
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Plexus Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Plexus  (FRA:PX4) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Plexus Cyclically Adjusted PB Ratio Related Terms


Plexus Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Plexus's Cyclically Adjusted PB Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Plexus Cyclically Adjusted PB Ratio Chart

Plexus Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.04 2.62 2.55 3.50 3.44

Plexus Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 3.27 3.44 3.46 4.62 0.00

FRA:PX4 vs RAL, VICR, BELFB: Cyclically Adjusted PB Ratio Comparison

For the Electronic Components subindustry, Plexus's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Plexus Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Plexus's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Plexus's Cyclically Adjusted PB Ratio falls into.


FRA:PX4
85GF Score
Plexus Corp FRA:PX4
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Plexus Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Plexus's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Plexus's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=48.617/333.9520*333.9520
=48.617

Current CPI (Jun. 2026) = 333.9520.

Plexus Quarterly Data

Book Value per Share CPI Adj_Book
201609 24.415 241.428 33.772
201612 26.204 241.432 36.246
201703 26.647 243.801 36.500
201706 26.271 244.955 35.816
201709 25.722 246.819 34.802
201712 23.480 246.524 31.807
201803 22.423 249.554 30.006
201806 23.340 251.989 30.932
201809 24.795 252.439 32.801
201812 25.672 251.233 34.125
201903 25.620 254.202 33.658
201906 25.835 256.143 33.683
201909 27.098 256.759 35.245
201912 27.977 256.974 36.358
202003 27.676 258.115 35.808
202006 28.719 257.797 37.203
202009 28.615 260.280 36.714
202012 28.774 260.474 36.891
202103 29.719 264.877 37.469
202106 29.847 271.696 36.686
202109 31.162 274.310 37.937
202112 33.004 278.802 39.533
202203 33.916 287.504 39.395
202206 36.123 296.311 40.712
202209 39.983 296.808 44.987
202212 39.325 296.797 44.248
202303 39.944 301.836 44.194
202306 39.754 305.109 43.512
202309 41.429 307.789 44.951
202312 42.234 306.746 45.980
202403 42.191 312.332 45.112
202406 43.117 314.175 45.831
202409 44.011 315.301 46.614
202412 46.549 315.605 49.255
202503 46.099 319.799 48.139
202506 45.594 322.561 47.204
202509 46.195 324.800 47.497
202512 47.349 324.054 48.795
202603 48.162 330.213 48.707
202606 48.617 333.952 48.617

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is Plexus (FRA:PX4) Overvalued in 2026?

Based on GuruFocus' analysis, Plexus stock appears to be overvalued. The current stock price of €218.00 is trading 59% above its estimated GF Value™ of €137.14. GuruFocus considers Plexus to be Significantly Overvalued.

Key valuation signals for FRA:PX4:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €137.14 vs. price of €218.00 (59% above fair value)
  • GF Score™: 85/100 with 2 warning signs

No single metric tells the full story. See the FRA:PX4 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Plexus Business Description

Other Exchanges PLXS:USA
Address One Plexus Way, P.O. Box 156, Neenah, WI, USA, 54956
Plexus Corp designs, manufactures, and services complex products in demanding regulatory environments, supporting life-saving medical devices, mission-critical aerospace and defense products, industrial automation systems, and semiconductor capital equipment. Its integrated lifecycle solutions span design and development, supply chain solutions, new product introduction, manufacturing, and sustaining services for market and disruptive companies in the Aerospace/Defense, Healthcare/Life Sciences, and Industrial sectors. The Company operates through three reportable segments: AMER, APAC, and EMEA, with the majority of revenue from the APAC segment.
85GF Score

Get the complete analysis for FRA:PX4

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€218.00
Price
€137.14
GF Value