Martinrea International (STU:03M) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

STU:03M Martinrea International Inc STU:03M
85 GF Score
Price €6.35
GF Value €6.46
Valuation Fairly Valued
! 3 Warning Signs
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What is Martinrea International Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Martinrea International  (STU:03M) 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.


Martinrea International Cyclically Adjusted PB Ratio Related Terms


Martinrea International Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Martinrea International'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.

Martinrea International Cyclically Adjusted PB Ratio Chart

Martinrea International Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.00 0.84 0.96 0.54 0.54

Martinrea International 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 0.46 0.57 0.55 0.48 0.51

STU:03M vs ORLY, AZO, GPC: Cyclically Adjusted PB Ratio Comparison

For the Auto Parts subindustry, Martinrea International'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.


Martinrea International Cyclically Adjusted PB Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Martinrea International's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:03M
85GF Score
Martinrea International Inc STU:03M
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Martinrea International 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.

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

For example, Martinrea International'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)
=14.176/133.5265*133.5265
=14.176

Current CPI (Jun. 2026) = 133.5265.

Martinrea International Quarterly Data

Book Value per Share CPI Adj_Book
201609 6.156 101.765 8.077
201612 6.782 101.449 8.926
201703 7.014 102.634 9.125
201706 7.020 103.029 9.098
201709 7.101 103.345 9.175
201712 7.344 103.345 9.489
201803 7.652 105.004 9.731
201806 8.278 105.557 10.471
201809 8.505 105.636 10.751
201812 8.926 105.399 11.308
201903 9.479 106.979 11.831
201906 9.549 107.690 11.840
201909 10.181 107.611 12.633
201912 10.429 107.769 12.922
202003 10.708 107.927 13.248
202006 9.406 108.401 11.586
202009 9.426 108.164 11.636
202012 9.394 108.559 11.554
202103 9.978 110.298 12.079
202106 9.994 111.720 11.945
202109 10.028 112.905 11.860
202112 10.133 113.774 11.892
202203 10.501 117.646 11.919
202206 11.215 120.806 12.396
202209 12.248 120.648 13.555
202212 11.845 120.964 13.075
202303 12.049 122.702 13.112
202306 12.434 124.203 13.367
202309 13.298 125.230 14.179
202312 12.873 125.072 13.743
202403 13.539 126.258 14.318
202406 14.097 127.522 14.761
202409 13.860 127.285 14.540
202412 13.533 127.364 14.188
202503 13.096 129.181 13.537
202506 12.634 129.892 12.988
202509 12.905 130.287 13.226
202512 13.047 130.366 13.363
202603 13.564 132.262 13.694
202606 14.176 133.527 14.176

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 Martinrea International (STU:03M) Overvalued in 2026?

Based on GuruFocus' analysis, Martinrea International stock appears to be undervalued. The current stock price of €6.35 is trading 1.7% below its estimated GF Value™ of €6.46. GuruFocus considers Martinrea International to be Fairly Valued.

Key valuation signals for STU:03M:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €6.46 vs. price of €6.35 (1.7% below fair value)
  • GF Score™: 85/100 with 3 warning signs

No single metric tells the full story. See the STU:03M stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Martinrea International Business Description

Other Exchanges MRETF:USAMRE:Canada
Address 3210 Langstaff Road, Vaughan, ON, CAN, L4K 5B2
Martinrea International Inc is a diversified and world-wide automotive supplier engaged in the design, development and manufacturing of engineered, value-added Lightweight Structures and Propulsion Systems. Its products are used in the automotive sector by the majority of vehicle manufacturers. The Company's offerings include products, assemblies and systems for small and large cars, crossovers, pickups and sport utility vehicles. The company also provides metal forming and welding solutions. The company operates in Canada, USA, Europe, and Other Countries.
85GF Score

Get the complete analysis for STU:03M

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

€6.35
Price
€6.46
GF Value