International Business Machines (XSGO:IBM) Cyclically Adjusted Book per Share: $34.60 (As of Mar. 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.

XSGO:IBM International Business Machines Corp XSGO:IBM
67 GF Score
Price $213.35
GF Value $239.96
Valuation Modestly Undervalued
! 1 Warning Sign
View Full Analysis

What is International Business Machines Cyclically Adjusted Book per Share?

International Business Machines XSGO:IBM 67 Cyclically Adjusted Book per Share is $34.60 as of Mar. 2026. GuruFocus rates XSGO:IBM with a GF Score™ of 67/100 and a GF Value™ of $239.96 (Modestly Undervalued). The stock has 1 warning sign 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.

International Business Machines's adjusted book value per share for the three months ended in Mar. 2026 was $35.083. 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 $34.60 for the trailing ten years ended in Mar. 2026.

During the past 12 months, International Business Machines's average Cyclically Adjusted Book Growth Rate was 8.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 5.80% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 4.20% 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 International Business Machines was 8.20% per year. The lowest was -4.50% per year. And the median was 3.00% per year.

As of today (2026-07-18), International Business Machines's current stock price is $213.35. International Business Machines's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $34.60. International Business Machines's Cyclically Adjusted PB Ratio of today is 6.17.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of International Business Machines was 11.69. The lowest was 4.70. And the median was 7.09.


International Business Machines  (XSGO:IBM) 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.

International Business Machines's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=213.35/34.60
=6.17

* 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 International Business Machines was 11.69. The lowest was 4.70. And the median was 7.09.


Be Aware

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


International Business Machines Cyclically Adjusted Book per Share Related Terms


International Business Machines Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for International Business Machines'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.

International Business Machines Cyclically Adjusted Book per Share Chart

International Business Machines 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 18.94 21.99 19.62 18.11 27.44

International Business Machines 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 16.41 25.81 25.43 27.44 34.60

XSGO:IBM vs ACN, FISV, FIS: Cyclically Adjusted Book per Share Comparison

For the Information Technology Services subindustry, International Business Machines'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.


International Business Machines Cyclically Adjusted PB Ratio vs Software Industry

For the Software industry and Technology sector, International Business Machines's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


XSGO:IBM
67GF Score
International Business Machines Corp XSGO:IBM
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

International Business Machines 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, International Business Machines'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)
=35.083/330.2130*330.2130
=35.083

Current CPI (Mar. 2026) = 330.2130.

International Business Machines Quarterly Data

Book Value per Share CPI Adj_Book
201606 16.460 241.018 22.551
201609 17.889 241.428 24.468
201612 19.290 241.432 26.383
201703 19.507 243.801 26.421
201706 19.764 244.955 26.643
201709 21.200 246.819 28.363
201712 19.079 246.524 25.556
201803 19.789 249.554 26.185
201806 20.290 251.989 26.589
201809 21.770 252.439 28.477
201812 18.819 251.233 24.735
201903 18.588 254.202 24.146
201906 19.918 256.143 25.678
201909 20.275 256.759 26.075
201912 23.493 256.974 30.189
202003 22.524 258.115 28.816
202006 23.076 257.797 29.558
202009 23.801 260.280 30.196
202012 23.074 260.474 29.252
202103 23.938 264.877 29.843
202106 24.480 271.696 29.752
202109 24.786 274.310 29.837
202112 21.046 278.802 24.927
202203 21.180 287.504 24.326
202206 21.490 296.311 23.949
202209 22.205 296.808 24.704
202212 24.218 296.797 26.945
202303 23.792 301.836 26.029
202306 24.370 305.109 26.375
202309 25.277 307.789 27.119
202312 24.626 306.746 26.510
202403 25.322 312.332 26.772
202406 26.083 314.175 27.414
202409 26.440 315.301 27.690
202412 29.480 315.605 30.845
202503 28.922 319.799 29.864
202506 29.531 322.561 30.232
202509 29.853 324.800 30.351
202512 34.845 324.054 35.507
202603 35.083 330.213 35.083

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 $34.60 mean?
International Business Machines (XSGO:IBM) has a Cyclically Adjusted Book per Share of $34.60 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 International Business Machines and its competitors.
Is International Business Machines' Cyclically Adjusted Book per Share too high?
International Business Machines' current Cyclically Adjusted Book per Share is $34.60. Overall, International Business Machines has a GF Score™ of 67/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does International Business Machines' Cyclically Adjusted Book per Share compare to ACN and FISV?
International Business Machines' Cyclically Adjusted Book per Share of $34.60 can be compared against companies in the Software 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 Software company?
A good Cyclically Adjusted Book per Share depends on the Software 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 International Business Machines and its competitors. International Business Machines's current Cyclically Adjusted Book per Share is $34.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is International Business Machines stock overvalued right now?
Based on GuruFocus' analysis, International Business Machines (XSGO:IBM) is currently considered Modestly Undervalued. The stock's GF Value™ is $239.96, compared to a current price of $213.35 — trading 11.1% below its estimated fair value. The current Cyclically Adjusted Book per Share is $34.60. International Business Machines' overall GF Score™ is 67/100 with 1 warning sign 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 International Business Machines (XSGO:IBM), the current Cyclically Adjusted Book per Share is $34.60 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 International Business Machines (XSGO:IBM) Overvalued in 2026?

Based on GuruFocus' analysis, International Business Machines stock appears to be undervalued. The current stock price of $213.35 is trading 11.1% below its estimated GF Value™ of $239.96. GuruFocus considers International Business Machines to be Modestly Undervalued.

Key valuation signals for XSGO:IBM:

  • Cyclically Adjusted Book per Share: $34.60
  • GF Value™: $239.96 vs. price of $213.35 (11.1% below fair value)
  • GF Score™: 67/100 with 1 warning sign

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


International Business Machines Business Description

Address One New Orchard Road, Armonk, NY, USA, 10504
Incorporated in 1911, International Business Machines, or IBM, is one of the oldest technology companies in the world. It provides software, IT consulting services, and hardware to help business customers modernize their technology workflows. IBM operates in 175 countries and employs approximately 300,000 people. The company has a robust roster of business partners to service its clients, which includes 95% of all Fortune 500 companies. IBM's products, including Red Hat, watsonx, and mainframes, handle some of the world's most important data workloads in areas like finance and retail.
67GF Score

Get the complete analysis for XSGO:IBM

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

$213.35
Price
$239.96
GF Value