Innospec (FRA:OCT) Cyclically Adjusted Book per Share: €40.55 (As of Mar. 2026)


FRA:OCT Innospec Inc FRA:OCT
77 GF Score
Price €71.50
GF Value €81.52
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Innospec Cyclically Adjusted Book per Share?

Innospec FRA:OCT +1.42% 77 Cyclically Adjusted Book per Share is €40.55 as of Mar. 2026. GuruFocus rates FRA:OCT with a GF Score™ of 77/100 and a GF Value™ of €81.52 (Modestly Undervalued). The stock has 3 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.

Innospec's adjusted book value per share for the three months ended in Mar. 2026 was €47.068. 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 €40.55 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Innospec's average Cyclically Adjusted Book Growth Rate was 7.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 8.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 11.10% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 12.70% 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 Innospec was 14.30% per year. The lowest was -1.80% per year. And the median was 9.25% per year.

As of today (2026-07-05), Innospec's current stock price is €71.50. Innospec's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €40.55. Innospec's Cyclically Adjusted PB Ratio of today is 1.76.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Innospec was 4.57. The lowest was 1.44. And the median was 3.11.


Innospec  (FRA:OCT) 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.

Innospec's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=71.50/40.55
=1.76

* 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 Innospec was 4.57. The lowest was 1.44. And the median was 3.11.


Be Aware

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


Innospec Cyclically Adjusted Book per Share Related Terms


Innospec Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Innospec'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.

Innospec Cyclically Adjusted Book per Share Chart

Innospec 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 27.54 32.86 35.16 40.56 39.08

Innospec 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 40.26 37.32 38.16 39.08 40.55

FRA:OCT vs MTX, ODC, NGVT: Cyclically Adjusted Book per Share Comparison

For the Specialty Chemicals subindustry, Innospec'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.


Innospec Cyclically Adjusted PB Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Innospec's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


FRA:OCT
77GF Score
Innospec Inc FRA:OCT
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Innospec 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, Innospec'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)
=47.068/330.2130*330.2130
=47.068

Current CPI (Mar. 2026) = 330.2130.

Innospec Quarterly Data

Book Value per Share CPI Adj_Book
201606 23.729 241.018 32.511
201609 24.220 241.428 33.127
201612 25.737 241.432 35.201
201703 26.201 243.801 35.488
201706 25.958 244.955 34.993
201709 25.982 246.819 34.761
201712 27.550 246.524 36.903
201803 27.398 249.554 36.253
201806 28.724 251.989 37.641
201809 29.471 252.439 38.551
201812 29.679 251.233 39.009
201903 30.671 254.202 39.842
201906 31.181 256.143 40.198
201909 32.686 256.759 42.037
201912 33.731 256.974 43.345
202003 34.776 258.115 44.490
202006 32.500 257.797 41.629
202009 31.967 260.280 40.556
202012 31.562 260.474 40.012
202103 32.722 264.877 40.793
202106 32.793 271.696 39.856
202109 34.231 274.310 41.207
202112 36.880 278.802 43.681
202203 39.086 287.504 44.892
202206 40.742 296.311 45.403
202209 44.415 296.808 49.414
202212 39.565 296.797 44.020
202303 40.494 301.836 44.301
202306 40.541 305.109 43.877
202309 42.406 307.789 45.495
202312 42.299 306.746 45.535
202403 43.674 312.332 46.174
202406 44.422 314.175 46.690
202409 44.916 315.301 47.040
202412 46.342 315.605 48.487
202503 46.669 319.799 48.189
202506 45.109 322.561 46.179
202509 44.598 324.800 45.341
202512 45.705 324.054 46.574
202603 47.068 330.213 47.068

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 €40.55 mean?
Innospec (FRA:OCT) has a Cyclically Adjusted Book per Share of €40.55 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 Innospec and its competitors.
Is Innospec's Cyclically Adjusted Book per Share too high?
Innospec's current Cyclically Adjusted Book per Share is €40.55. Overall, Innospec has a GF Score™ of 77/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Innospec's Cyclically Adjusted Book per Share compare to MTX and ODC?
Innospec's Cyclically Adjusted Book per Share of €40.55 can be compared against companies in the Chemicals 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 Chemicals company?
A good Cyclically Adjusted Book per Share depends on the Chemicals 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 Innospec and its competitors. Innospec's current Cyclically Adjusted Book per Share is €40.55. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Innospec stock overvalued right now?
Based on GuruFocus' analysis, Innospec (FRA:OCT) is currently considered Modestly Undervalued. The stock's GF Value™ is €81.52, compared to a current price of €71.50 — trading 12.3% below its estimated fair value. The current Cyclically Adjusted Book per Share is €40.55. Innospec's overall GF Score™ is 77/100 with 3 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 Innospec (FRA:OCT), the current Cyclically Adjusted Book per Share is €40.55 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 Innospec (FRA:OCT) Overvalued in 2026?

Based on GuruFocus' analysis, Innospec stock appears to be undervalued. The current stock price of €71.50 is trading 12.3% below its estimated GF Value™ of €81.52. GuruFocus considers Innospec to be Modestly Undervalued.

Key valuation signals for FRA:OCT:

  • Cyclically Adjusted Book per Share: €40.55
  • GF Value™: €81.52 vs. price of €71.50 (12.3% below fair value)
  • GF Score™: 77/100 with 3 warning signs

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


Innospec Business Description

Other Exchanges IOSP:USA0JAX:UK
Address 8310 South Valley Highway, Suite 350, Englewood, CO, USA, 80112
Innospec Inc manufactures and sells a variety of chemicals and fuel additives. The firm organizes itself into three segments based on product type. The Performance Chemicals segment that derives maximum revenue, provides technology-based solutions for its customers' processes or products in personal care, home care, agrochemical, construction, mining and other industrial markets. The Fuel Specialties segment develops, manufactures, blends, markets and supplies a range of specialty chemical products used as additives in diesel, jet, marine, fuel oil and other fuels. The Oilfield Services segment develops and markets chemical solutions for drilling, completion, production, DRA and oil and gas applications.
77GF Score

Get the complete analysis for FRA:OCT

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

€71.50
Price
€81.52
GF Value