SUMCO (SUOPY) Cyclically Adjusted Book per Share: $ (As of Jun. 2026)

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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.

SUOPY SUMCO Corp SUOPY
68 GF Score
Price $38.61
GF Value $22.36
Valuation Significantly Overvalued
! 5 Warning Signs
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What is SUMCO Cyclically Adjusted Book per Share?

SUMCO SUOPY +2.92% 68 Cyclically Adjusted Book per Share is $ as of Jun. 2026. GuruFocus rates SUOPY with a GF Score™ of 68/100 and a GF Value™ of $22.36 (Significantly Overvalued). The stock has 5 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.

SUMCO's adjusted book value per share for the three months ended in Jun. 2026 was $22.557. 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 $ for the trailing ten years ended in Jun. 2026.

During the past 12 months, SUMCO's average Cyclically Adjusted Book Growth Rate was 8.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 11.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 11.40% 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 SUMCO was 12.90% per year. The lowest was -2.10% per year. And the median was 8.70% per year.

As of today (2026-09-20), SUMCO's current stock price is $38.61. SUMCO's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $. SUMCO's Cyclically Adjusted PB Ratio of today is .

During the past 13 years, the highest Cyclically Adjusted PB Ratio of SUMCO was 3.86. The lowest was 0.70. And the median was 2.03.


SUMCO  (OTCPK:SUOPY) 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of SUMCO was 3.86. The lowest was 0.70. And the median was 2.03.


Be Aware

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


SUMCO Cyclically Adjusted Book per Share Related Terms


SUMCO Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for SUMCO'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.

SUMCO Cyclically Adjusted Book per Share Chart

SUMCO Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
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SUMCO Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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SUOPY vs LRCX, AMAT, KLAC: Cyclically Adjusted Book per Share Comparison

For the Semiconductor Equipment & Materials subindustry, SUMCO'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.


SUMCO Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


SUOPY
68GF Score
SUMCO Corp SUOPY
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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SUMCO 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, SUMCO'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)
=22.557/113.6000*113.6000
=22.557

Current CPI (Jun. 2026) = 113.6000.

SUMCO Quarterly Data

Book Value per Share CPI Adj_Book
201609 15.594 98.000 18.076
201612 14.198 98.400 16.391
201703 15.206 98.100 17.609
201706 15.533 98.500 17.914
201709 16.138 98.800 18.555
201712 17.049 99.400 19.485
201803 18.235 99.200 20.882
201806 18.728 99.200 21.447
201809 18.612 99.900 21.164
201812 20.235 99.700 23.056
201903 20.481 99.700 23.336
201906 21.072 99.800 23.986
201909 20.914 100.100 23.735
201912 21.407 100.500 24.197
202003 21.857 100.300 24.755
202006 22.342 99.900 25.406
202009 22.714 99.900 25.829
202012 23.618 99.300 27.019
202103 22.726 99.900 25.843
202106 23.218 99.500 26.508
202109 23.615 100.100 26.800
202112 25.932 100.100 29.429
202203 25.266 101.100 28.390
202206 23.772 101.800 26.527
202209 22.851 103.100 25.178
202212 25.604 104.100 27.941
202303 26.156 104.400 28.461
202306 25.081 105.200 27.084
202309 24.233 106.200 25.922
202312 25.783 106.800 27.425
202403 24.189 107.200 25.633
202406 23.406 108.200 24.574
202409 25.512 108.900 26.613
202412 23.917 110.700 24.544
202503 24.730 111.100 25.286
202506 25.968 111.700 26.410
202509 25.148 112.000 25.507
202512 23.635 113.000 23.760
202603 22.962 112.700 23.145
202606 22.557 113.600 22.557

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 $ mean?
SUMCO (SUOPY) has a Cyclically Adjusted Book per Share of $ 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 SUMCO and its competitors.
Is SUMCO's Cyclically Adjusted Book per Share too high?
SUMCO's current Cyclically Adjusted Book per Share is $. Overall, SUMCO has a GF Score™ of 68/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does SUMCO's Cyclically Adjusted Book per Share compare to LRCX and AMAT?
SUMCO's Cyclically Adjusted Book per Share of $ can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors 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 SUMCO and its competitors. SUMCO's current Cyclically Adjusted Book per Share is $. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SUMCO stock overvalued right now?
Based on GuruFocus' analysis, SUMCO (SUOPY) is currently considered Significantly Overvalued. The stock's GF Value™ is $22.36, compared to a current price of $38.61 — trading 72.7% above its estimated fair value. The current Cyclically Adjusted Book per Share is $. SUMCO's overall GF Score™ is 68/100 with 5 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 SUMCO (SUOPY), the current Cyclically Adjusted Book per Share is $ 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 SUMCO (SUOPY) Overvalued in 2026?

Based on GuruFocus' analysis, SUMCO stock appears to be overvalued. The current stock price of $38.61 is trading 72.7% above its estimated GF Value™ of $22.36. GuruFocus considers SUMCO to be Significantly Overvalued.

Key valuation signals for SUOPY:

  • Cyclically Adjusted Book per Share: $
  • GF Value™: $22.36 vs. price of $38.61 (72.7% above fair value)
  • GF Score™: 68/100 with 5 warning signs

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


SUMCO Business Description

Address 1-2-1 Shibaura, Minato-ku, Tokyo, JPN, 105-8634
Founded in 1999 as a joint venture between Nippon Steel and two Mitsubishi entities, Sumco is the world's second-largest semiconductor-grade silicon wafer manufacturer, with an estimated 21% market share in 2025. Sumco is headquartered in Tokyo and operates seven production sites across Japan. It also maintains sales and support offices in Taiwan, the US, the UK, Indonesia, and Singapore. Sumco sells to most semiconductor manufacturers like TSMC, Intel, Samsung, and Micron. The firm employs over 9,700 people.
68GF Score

Get the complete analysis for SUOPY

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

$38.61
Price
$22.36
GF Value