Aperam (STU:7AA) Cyclically Adjusted Book per Share: €41.93 (As of Jun. 2026)

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STU:7AA Aperam SA STU:7AA
81 GF Score
Price €45.52
GF Value €26.60
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Aperam Cyclically Adjusted Book per Share?

Aperam STU:7AA +0.71% 81 Cyclically Adjusted Book per Share is €41.93 as of Jun. 2026. GuruFocus rates STU:7AA with a GF Score™ of 81/100 and a GF Value™ of €26.60 (Significantly Overvalued). The stock has 8 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Aperam's adjusted book value per share for the three months ended in Jun. 2026 was €45.230. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €41.93 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Aperam's average Cyclically Adjusted Book Growth Rate was -100.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 3.50% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Aperam was 3.50% per year. The lowest was 3.50% per year. And the median was 3.50% per year.

As of today (2026-08-01), Aperam's current stock price is €45.52. Aperam's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €41.93. Aperam's Cyclically Adjusted PB Ratio of today is 1.09.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Aperam was 1.26. The lowest was 0.60. And the median was 0.76.


Aperam  (STU:7AA) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Aperam's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=45.52/41.93
=1.09

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Aperam was 1.26. The lowest was 0.60. And the median was 0.76.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Aperam Cyclically Adjusted Book per Share Related Terms


Aperam Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Aperam's Cyclically Adjusted Book per Share 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.

Aperam Cyclically Adjusted Book per Share Chart

Aperam Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 36.94 38.14 38.57 39.86

Aperam Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted Book per Share 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 40.47 41.42 39.86 42.03 41.93

STU:7AA vs NUE, STLD, RS: Cyclically Adjusted Book per Share Comparison

For the Steel subindustry, Aperam'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.


Aperam Cyclically Adjusted PB Ratio vs Steel Industry

For the Steel industry and Basic Materials sector, Aperam's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:7AA
81GF Score
Aperam SA STU:7AA
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aperam Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

For example, Aperam'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)
=45.23/128.6000*128.6000
=45.230

Current CPI (Jun. 2026) = 128.6000.

Aperam Quarterly Data

Book Value per Share CPI Adj_Book
201606 28.501 100.660 36.412
201612 30.268 101.040 38.524
201703 0.000 101.780 0.000
201706 29.388 102.170 36.990
201709 0.000 102.520 0.000
201712 29.772 102.410 37.386
201803 30.136 102.900 37.663
201806 28.637 103.650 35.530
201809 29.090 104.580 35.771
201812 30.099 104.320 37.104
201903 30.277 105.140 37.033
201906 29.864 105.550 36.386
201909 29.942 105.900 36.360
201912 30.245 106.080 36.666
202003 27.877 106.040 33.808
202006 26.323 106.340 31.833
202009 26.026 106.620 31.391
202012 27.536 106.670 33.197
202103 28.062 108.140 33.371
202106 30.539 108.680 36.137
202109 31.913 109.470 37.490
202112 37.802 111.090 43.760
202203 41.406 114.780 46.391
202206 44.118 116.750 48.596
202209 47.254 117.000 51.939
202212 46.894 117.060 51.517
202303 48.127 118.910 52.049
202306 47.835 120.460 51.067
202309 47.073 121.740 49.726
202312 47.641 121.170 50.562
202403 46.810 122.590 49.105
202406 44.776 123.120 46.769
202409 47.006 123.300 49.027
202412 46.397 122.430 48.735
202503 45.982 124.210 47.607
202506 44.059 125.820 45.032
202509 44.151 126.570 44.859
202512 44.165 126.180 45.012
202603 44.760 127.160 45.267
202606 45.230 128.600 45.230

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

What does a Cyclically Adjusted Book per Share of €41.93 mean?
Aperam (STU:7AA) has a Cyclically Adjusted Book per Share of €41.93 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Aperam and its competitors.
Is Aperam's Cyclically Adjusted Book per Share too high?
Aperam's current Cyclically Adjusted Book per Share is €41.93. Overall, Aperam has a GF Score™ of 81/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Aperam's Cyclically Adjusted Book per Share compare to NUE and STLD?
Aperam's Cyclically Adjusted Book per Share of €41.93 can be compared against companies in the Steel industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Steel company?
A good Cyclically Adjusted Book per Share depends on the Steel industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Aperam and its competitors. Aperam's current Cyclically Adjusted Book per Share is €41.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aperam stock overvalued right now?
Based on GuruFocus' analysis, Aperam (STU:7AA) is currently considered Significantly Overvalued. The stock's GF Value™ is €26.60, compared to a current price of €45.52 — trading 71.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is €41.93. Aperam's overall GF Score™ is 81/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Aperam (STU:7AA), the current Cyclically Adjusted Book per Share is €41.93 as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Aperam (STU:7AA) Overvalued in 2026?

Based on GuruFocus' analysis, Aperam stock appears to be overvalued. The current stock price of €45.52 is trading 71.1% above its estimated GF Value™ of €26.60. GuruFocus considers Aperam to be Significantly Overvalued.

Key valuation signals for STU:7AA:

  • Cyclically Adjusted Book per Share: €41.93
  • GF Value™: €26.60 vs. price of €45.52 (71.1% above fair value)
  • GF Score™: 81/100 with 8 warning signs

No single metric tells the full story. See the STU:7AA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Aperam Business Description

Address 24-26 Boulevard d’Avranches, Luxembourg, LUX, 1160
Aperam SA is a Luxembourg-based stainless and specialty steel producer. The company operates through four segments. Its Stainless and Electrical Steel segment, which generates the majority of revenue, produces a wide range of stainless and electrical steel products for diverse industries. The Services and Solutions segment markets the company's products and provides customized steel transformation services; the Alloys and Specialties segment produces nickel alloys and certain specific stainless steels; and the Recycling & Renewables segment collects, trades, processes, and recycles stainless steel scrap and high-performance alloys. Geographically, the company generates maximum revenue from Europe, and the rest from the Americas, Asia, and Africa.
81GF Score

Get the complete analysis for STU:7AA

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

€45.52
Price
€26.60
GF Value