RNECF (Renesas Electronics) Cyclically Adjusted Book per Share: $4.91 (As of Mar. 2026)


RNECF Renesas Electronics Corp RNECF
79 GF Score
Price $28.87
GF Value $13.89
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Renesas Electronics Cyclically Adjusted Book per Share?

Renesas Electronics RNECF 79 Cyclically Adjusted Book per Share is $4.91 as of Mar. 2026. GuruFocus rates RNECF with a GF Score™ of 79/100 and a GF Value™ of $13.89 (Significantly Overvalued). The stock has 6 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.

Renesas Electronics's adjusted book value per share for the three months ended in Mar. 2026 was $8.825. 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 $4.91 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Renesas Electronics's average Cyclically Adjusted Book Growth Rate was 18.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 25.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 20.50% 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 Renesas Electronics was 25.90% per year. The lowest was -19.30% per year. And the median was 6.45% per year.

As of today (2026-06-28), Renesas Electronics's current stock price is $28.865. Renesas Electronics's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $4.91. Renesas Electronics's Cyclically Adjusted PB Ratio of today is 5.88.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Renesas Electronics was 7.10. The lowest was 0.89. And the median was 3.57.


Renesas Electronics  (OTCPK:RNECF) 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.

Renesas Electronics's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=28.865/4.91
=5.88

* 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 Renesas Electronics was 7.10. The lowest was 0.89. And the median was 3.57.


Be Aware

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


Renesas Electronics Cyclically Adjusted Book per Share Related Terms


Renesas Electronics Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Renesas Electronics'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.

Renesas Electronics Cyclically Adjusted Book per Share Chart

Renesas Electronics Annual Data
Trend Mar16 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 2.58 2.64 3.26 3.81 4.40

Renesas Electronics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 4.42 4.80 4.99 4.40 4.91

RNECF vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Renesas Electronics'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.


Renesas Electronics Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


RNECF
79GF Score
Renesas Electronics Corp RNECF
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Renesas Electronics 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, Renesas Electronics's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=8.825/112.7000*112.7000
=8.825

Current CPI (Mar. 2026) = 112.7000.

Renesas Electronics Quarterly Data

Book Value per Share CPI Adj_Book
201606 2.126 98.100 2.442
201609 2.239 98.000 2.575
201612 0.000 98.400 0.000
201703 2.287 98.100 2.627
201706 2.489 98.500 2.848
201709 2.583 98.800 2.946
201712 3.058 99.400 3.467
201803 2.878 99.200 3.270
201806 2.987 99.200 3.393
201809 3.019 99.900 3.406
201812 3.195 99.700 3.612
201903 3.425 99.700 3.872
201906 3.244 99.800 3.663
201909 3.236 100.100 3.643
201912 3.331 100.500 3.735
202003 3.389 100.300 3.808
202006 3.387 99.900 3.821
202009 3.459 99.900 3.902
202012 3.431 99.300 3.894
202103 3.811 99.900 4.299
202106 4.571 99.500 5.177
202109 4.891 100.100 5.507
202112 5.198 100.100 5.852
202203 5.833 101.100 6.502
202206 6.045 101.800 6.692
202209 6.435 103.100 7.034
202212 6.326 104.100 6.849
202303 6.890 104.400 7.438
202306 7.580 105.200 8.120
202309 7.836 106.200 8.316
202312 7.823 106.800 8.255
202403 8.243 107.200 8.666
202406 8.714 108.200 9.076
202409 8.367 108.900 8.659
202412 9.191 110.700 9.357
202503 8.653 111.100 8.778
202506 7.772 111.700 7.842
202509 8.363 112.000 8.415
202512 8.641 113.000 8.618
202603 8.825 112.700 8.825

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 $4.91 mean?
Renesas Electronics (RNECF) has a Cyclically Adjusted Book per Share of $4.91 as of Mar. 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 Renesas Electronics and its competitors.
Is Renesas Electronics' Cyclically Adjusted Book per Share too high?
Renesas Electronics' current Cyclically Adjusted Book per Share is $4.91. Overall, Renesas Electronics has a GF Score™ of 79/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Renesas Electronics' Cyclically Adjusted Book per Share compare to NVDA and AVGO?
Renesas Electronics' Cyclically Adjusted Book per Share of $4.91 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 Renesas Electronics and its competitors. Renesas Electronics's current Cyclically Adjusted Book per Share is $4.91. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Renesas Electronics stock overvalued right now?
Based on GuruFocus' analysis, Renesas Electronics (RNECF) is currently considered Significantly Overvalued. The stock's GF Value™ is $13.89, compared to a current price of $28.87 — trading 107.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is $4.91. Renesas Electronics' overall GF Score™ is 79/100 with 6 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 Renesas Electronics (RNECF), the current Cyclically Adjusted Book per Share is $4.91 as of Mar. 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 Renesas Electronics (RNECF) Overvalued in 2026?

Based on GuruFocus' analysis, Renesas Electronics stock appears to be overvalued. The current stock price of $28.87 is trading 107.8% above its estimated GF Value™ of $13.89. GuruFocus considers Renesas Electronics to be Significantly Overvalued.

Key valuation signals for RNECF:

  • Cyclically Adjusted Book per Share: $4.91
  • GF Value™: $13.89 vs. price of $28.87 (107.8% above fair value)
  • GF Score™: 79/100 with 6 warning signs

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


Renesas Electronics Business Description

Address 3-2-24 Toyosu, Koto-ku, Tokyo, JPN, 135-0061
Renesas Electronics is a Japanese broad-based integrated device manufacturer involved in the design and manufacturing of microcontrollers and analog chips, used across automotive, industrial, enterprise, and consumer industries. Headquartered in Tokyo, the company was created through the combination of electronics business units from NEC Electronics, Mitsubishi, and Hitachi. The company's businesses are primarily focused in Asia, where they historically account for 70%-80% of its sales. Renesas is the third- and ninth-largest manufacturer of MCUs and power/analog devices, with a 17% and 3.5% market share, respectively, as of 2024.
79GF Score

Get the complete analysis for RNECF

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

$28.87
Price
$13.89
GF Value