Diamond Trust Bank (NAI:DTK) Cyclically Adjusted Book per Share: KES280.44 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

NAI:DTK Diamond Trust Bank Ltd NAI:DTK
79 GF Score
Price KES190.00
GF Value KES89.25
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is Diamond Trust Bank Cyclically Adjusted Book per Share?

Diamond Trust Bank NAI:DTK -0.52% 79 Cyclically Adjusted Book per Share is KES280.44 as of Jun. 2026. GuruFocus rates NAI:DTK with a GF Score™ of 79/100 and a GF Value™ of KES89.25 (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.

Diamond Trust Bank's adjusted book value per share for the three months ended in Jun. 2026 was KES366.181. 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 KES280.44 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Diamond Trust Bank's average Cyclically Adjusted Book Growth Rate was 11.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 8.90% 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 Diamond Trust Bank was 11.50% per year. The lowest was 8.90% per year. And the median was 10.20% per year.

As of today (2026-09-11), Diamond Trust Bank's current stock price is KES190.00. Diamond Trust Bank's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was KES280.44. Diamond Trust Bank's Cyclically Adjusted PB Ratio of today is 0.68.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Diamond Trust Bank was 0.69. The lowest was 0.19. And the median was 0.26.


Diamond Trust Bank  (NAI:DTK) 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.

Diamond Trust Bank's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=190.00/280.44
=0.68

* 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 Diamond Trust Bank was 0.69. The lowest was 0.19. And the median was 0.26.


Be Aware

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


Diamond Trust Bank Cyclically Adjusted Book per Share Related Terms


Diamond Trust Bank Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Diamond Trust Bank'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.

Diamond Trust Bank Cyclically Adjusted Book per Share Chart

Diamond Trust Bank 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 172.69 203.82 221.10 239.09 263.05

Diamond Trust Bank 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 252.48 259.00 263.05 272.92 280.44

NAI:DTK vs USB: Cyclically Adjusted Book per Share Comparison

For the Banks - Regional subindustry, Diamond Trust Bank'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.


Diamond Trust Bank Cyclically Adjusted PB Ratio vs Banks Industry

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

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


NAI:DTK
79GF Score
Diamond Trust Bank Ltd NAI:DTK
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Diamond Trust Bank 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, Diamond Trust Bank'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)
=366.181/333.9520*333.9520
=366.181

Current CPI (Jun. 2026) = 333.9520.

Diamond Trust Bank Quarterly Data

Book Value per Share CPI Adj_Book
201609 141.955 241.428 196.357
201612 154.060 241.432 213.098
201703 159.830 243.801 218.931
201706 163.408 244.955 222.777
201709 167.181 246.819 226.200
201712 172.995 246.524 234.346
201803 177.668 249.554 237.754
201806 178.868 251.989 237.047
201809 185.527 252.439 245.434
201812 191.905 251.233 255.090
201903 198.311 254.202 260.526
201906 203.650 256.143 265.513
201909 210.691 256.759 274.034
201912 210.481 256.974 273.532
202003 218.244 258.115 282.366
202006 218.278 257.797 282.759
202009 224.567 260.280 288.130
202012 221.639 260.474 284.162
202103 228.827 264.877 288.501
202106 233.763 271.696 287.327
202109 241.351 274.310 293.827
202112 240.678 278.802 288.287
202203 247.126 287.504 287.051
202206 246.380 296.311 277.678
202209 250.726 296.808 282.103
202212 246.645 296.797 277.522
202303 260.883 301.836 288.642
202306 259.087 305.109 283.579
202309 256.786 307.789 278.614
202312 267.841 306.746 291.596
202403 257.095 312.332 274.891
202406 266.948 314.175 283.752
202409 265.285 315.301 280.977
202412 292.483 315.605 309.486
202503 310.878 319.799 324.636
202506 322.981 322.561 334.387
202509 355.676 324.800 365.698
202512 361.600 324.054 372.645
202603 377.767 330.213 382.044
202606 366.181 333.952 366.181

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 KES280.44 mean?
Diamond Trust Bank (NAI:DTK) has a Cyclically Adjusted Book per Share of KES280.44 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 Diamond Trust Bank and its competitors.
Is Diamond Trust Bank's Cyclically Adjusted Book per Share too high?
Diamond Trust Bank's current Cyclically Adjusted Book per Share is KES280.44. Overall, Diamond Trust Bank has a GF Score™ of 79/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Diamond Trust Bank's Cyclically Adjusted Book per Share compare to USB?
Diamond Trust Bank's Cyclically Adjusted Book per Share of KES280.44 can be compared against companies in the Banks 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 Banks company?
A good Cyclically Adjusted Book per Share depends on the Banks 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 Diamond Trust Bank and its competitors. Diamond Trust Bank's current Cyclically Adjusted Book per Share is KES280.44. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamond Trust Bank stock overvalued right now?
Based on GuruFocus' analysis, Diamond Trust Bank (NAI:DTK) is currently considered Significantly Overvalued. The stock's GF Value™ is KES89.25, compared to a current price of KES190.00 — trading 112.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is KES280.44. Diamond Trust Bank's overall GF Score™ is 79/100 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 Diamond Trust Bank (NAI:DTK), the current Cyclically Adjusted Book per Share is KES280.44 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 Diamond Trust Bank (NAI:DTK) Overvalued in 2026?

Based on GuruFocus' analysis, Diamond Trust Bank stock appears to be overvalued. The current stock price of KES190.00 is trading 112.9% above its estimated GF Value™ of KES89.25. GuruFocus considers Diamond Trust Bank to be Significantly Overvalued.

Key valuation signals for NAI:DTK:

  • Cyclically Adjusted Book per Share: KES280.44
  • GF Value™: KES89.25 vs. price of KES190.00 (112.9% above fair value)
  • GF Score™: 79/100 with 5 warning signs

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


Diamond Trust Bank Business Description

Address Mombasa Road, DTB Centre, P.O. Box 61711, Nairobi, KEN, 00200
Diamond Trust Bank Ltd is a regional bank that provides banking, insurance agency, and other related services to the general public. It offers various banking services, including corporate, retail, and commercial. The company focuses on the small and medium-sized enterprises sector. It has four business segments: Diamond Trust Bank Tanzania Limited, Diamond Trust Bank Uganda Limited, Diamond Trust Bank Burundi S.A, and Kenya. The Trust's majority of revenue is generated from its home country, Kenya.
79GF Score

Get the complete analysis for NAI:DTK

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

KES190.00
Price
KES89.25
GF Value