RKUNF (Rakuten Group) Cyclically Adjusted PB Ratio: (As of Sep. 20, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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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.

RKUNF Rakuten Group Inc RKUNF
72 GF Score
Price $4.50
GF Value $5.81
Valuation Modestly Undervalued
! 5 Warning Signs
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What is Rakuten Group Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Rakuten Group  (OTCPK:RKUNF) 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.


Rakuten Group Cyclically Adjusted PB Ratio Related Terms


Rakuten Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Rakuten Group'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.

Rakuten Group Cyclically Adjusted PB Ratio Chart

Rakuten Group 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 2.38 0.98 0.94 1.11 1.30

Rakuten Group 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 1.13 1.27 1.29 0.85 0.96

RKUNF vs AMZN, BABA, PDD: Cyclically Adjusted PB Ratio Comparison

For the Internet Retail subindustry, Rakuten Group'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.


Rakuten Group Cyclically Adjusted PB Ratio vs Retail - Cyclical Industry

For the Retail - Cyclical industry and Consumer Cyclical sector, Rakuten Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


RKUNF
72GF Score
Rakuten Group Inc RKUNF
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Rakuten Group 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.

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

For example, Rakuten Group'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)
=3.719/113.6000*113.6000
=3.719

Current CPI (Jun. 2026) = 113.6000.

Rakuten Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 4.300 98.000 4.984
201612 4.102 98.400 4.736
201703 4.197 98.100 4.860
201706 4.186 98.500 4.828
201709 4.267 98.800 4.906
201712 4.505 99.400 5.149
201803 4.366 99.200 5.000
201806 4.674 99.200 5.352
201809 5.034 99.900 5.724
201812 5.233 99.700 5.963
201903 5.853 99.700 6.669
201906 5.946 99.800 6.768
201909 5.167 100.100 5.864
201912 5.002 100.500 5.654
202003 4.668 100.300 5.287
202006 4.934 99.900 5.611
202009 4.728 99.900 5.376
202012 4.472 99.300 5.116
202103 5.071 99.900 5.766
202106 6.662 99.500 7.606
202109 6.472 100.100 7.345
202112 6.134 100.100 6.961
202203 5.485 101.100 6.163
202206 4.854 101.800 5.417
202209 4.399 103.100 4.847
202212 4.044 104.100 4.413
202303 3.678 104.400 4.002
202306 3.793 105.200 4.096
202309 3.542 106.200 3.789
202312 3.602 106.800 3.831
202403 3.426 107.200 3.631
202406 3.263 108.200 3.426
202409 3.154 108.900 3.290
202412 3.658 110.700 3.754
202503 3.522 111.100 3.601
202506 3.640 111.700 3.702
202509 3.623 112.000 3.675
202512 3.981 113.000 4.002
202603 3.692 112.700 3.721
202606 3.719 113.600 3.719

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 Rakuten Group (RKUNF) Overvalued in 2026?

Based on GuruFocus' analysis, Rakuten Group stock appears to be undervalued. The current stock price of $4.50 is trading 22.5% below its estimated GF Value™ of $5.81. GuruFocus considers Rakuten Group to be Modestly Undervalued.

Key valuation signals for RKUNF:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $5.81 vs. price of $4.50 (22.5% below fair value)
  • GF Score™: 72/100 with 5 warning signs

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


Rakuten Group Business Description

Address 1-14-1 Tamagawa, Rakuten Crimson House, Setagaya-ku, Tokyo, JPN, 158-0094
Rakuten is a leading e-commerce and financial technology service provider in Japan. It has built up a comprehensive Rakuten ecosystem in Japan, including Rakuten Ichiba for e-commerce, Rakuten Travel, Rakuten Card, Rakuten Bank, and Rakuten Securities, and became the fourth mobile network operator in Japan in April 2020. The loyalty program, Rakuten Super Points, has encouraged cross-use of services in its ecosystem. About 90% of its revenue is generated from the Japanese market.
72GF Score

Get the complete analysis for RKUNF

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

$4.50
Price
$5.81
GF Value