KB Financial Group (STU:KBIA) Cyclically Adjusted PB Ratio: (As of Sep. 21, 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.
Reviewed by: Charlie Tian Charlie Tian
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.

STU:KBIA KB Financial Group Inc STU:KBIA
48 GF Score
Price €110.00
GF Value €52.82
Valuation Significantly Overvalued
! 6 Warning Signs
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What is KB Financial Group Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


KB Financial Group  (STU:KBIA) 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.


KB Financial Group Cyclically Adjusted PB Ratio Related Terms


KB Financial Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for KB Financial 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.

KB Financial Group Cyclically Adjusted PB Ratio Chart

KB Financial 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 - - - 0.62 0.78

KB Financial 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 0.79 0.78 0.80 0.93 0.99

KB Financial Group Cyclically Adjusted PB Ratio Competitor Comparison

For the Banks - Regional subindustry, KB Financial 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.


KB Financial Group Cyclically Adjusted PB Ratio vs Banks Industry

For the Banks industry and Financial Services sector, KB Financial Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:KBIA
48GF Score
KB Financial Group Inc STU:KBIA
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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KB Financial 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.

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

For example, KB Financial 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)
=93.448/126.4904*126.4904
=93.448

Current CPI (Jun. 2026) = 126.4904.

KB Financial Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 64.925 101.461 80.941
201612 61.613 101.561 76.736
201703 66.626 102.851 81.940
201706 102.611 0.000
201709 62.116 103.491 75.921
201712 66.368 102.991 81.511
201803 64.746 104.101 78.671
201806 67.095 104.130 81.502
201809 69.714 105.651 83.465
201812 70.784 104.351 85.802
201903 71.573 104.491 86.642
201906 71.834 104.881 86.635
201909 75.460 105.200 90.731
201912 76.554 105.121 92.116
202003 73.802 105.354 88.608
202006 75.051 105.112 90.316
202009 76.562 106.198 91.192
202012 80.533 105.765 96.314
202103 80.596 107.357 94.960
202106 82.934 107.579 97.513
202109 84.360 108.759 98.113
202112 86.299 109.676 99.529
202203 85.074 111.848 96.211
202206 84.040 114.072 93.189
202209 82.169 114.715 90.603
202212 94.468 115.179 103.745
202303 94.221 116.507 102.294
202306 95.355 117.182 102.929
202309 98.523 118.964 104.757
202312 99.502 118.837 105.910
202403 96.628 120.123 101.750
202406 97.834 120.007 103.119
202409 99.590 120.861 104.228
202412 96.103 121.135 100.352
202503 93.386 122.590 96.357
202506 96.709 122.611 99.769
202509 94.764 123.402 97.136
202512 93.082 123.939 94.998
202603 91.202 125.236 92.116
202606 93.448 126.490 93.448

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 KB Financial Group (STU:KBIA) Overvalued in 2026?

Based on GuruFocus' analysis, KB Financial Group stock appears to be overvalued. The current stock price of €110.00 is trading 108.3% above its estimated GF Value™ of €52.82. GuruFocus considers KB Financial Group to be Significantly Overvalued.

Key valuation signals for STU:KBIA:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €52.82 vs. price of €110.00 (108.3% above fair value)
  • GF Score™: 48/100 with 6 warning signs

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


KB Financial Group Business Description

Address 26, Gukjegeumyung-ro 8-gil, Yeongdeungpo-gu, Seoul, KOR, 07331
KB Financial Group Inc. is a financial holding company in Korea. The company operations include Kookmin Bank, one of the commercial banks in Korea. The company's subsidiaries collectively engage in a broad range of businesses, including commercial banking, credit cards, asset management, non-life and life insurance, capital markets activities, and international banking and finance. The company's segments include the Banking business, Securities business, Non-life Insurance business, Credit card business, and Life Insurance business. The Group generates the majority of its revenue from the Banking business.
48GF Score

Get the complete analysis for STU:KBIA

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

€110.00
Price
€52.82
GF Value