Acuity (STU:AQ8) Cyclically Adjusted Book per Share: €59.19 (As of May. 2026)

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STU:AQ8 Acuity Inc STU:AQ8
91 GF Score
Price €292.00
GF Value €273.49
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Acuity Cyclically Adjusted Book per Share?

Acuity STU:AQ8 +0.69% 91 Cyclically Adjusted Book per Share is €59.19 as of May. 2026. GuruFocus rates STU:AQ8 with a GF Score™ of 91/100 and a GF Value™ of €273.49 (Fairly Valued). The stock has 2 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.

Acuity's adjusted book value per share for the three months ended in May. 2026 was €81.092. 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 €59.19 for the trailing ten years ended in May. 2026.

During the past 12 months, Acuity's average Cyclically Adjusted Book Growth Rate was 11.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 10.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 12.40% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 12.80% 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 Acuity was 14.40% per year. The lowest was 8.00% per year. And the median was 12.50% per year.

As of today (2026-07-31), Acuity's current stock price is €292.00. Acuity's Cyclically Adjusted Book per Share for the quarter that ended in May. 2026 was €59.19. Acuity's Cyclically Adjusted PB Ratio of today is 4.93.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Acuity was 12.89. The lowest was 2.24. And the median was 4.44.


Acuity  (STU:AQ8) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=292.00/59.19
=4.93

* 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 Acuity was 12.89. The lowest was 2.24. And the median was 4.44.


Be Aware

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


Acuity Cyclically Adjusted Book per Share Related Terms


Acuity Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Acuity'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.

Acuity Cyclically Adjusted Book per Share Chart

Acuity Annual Data
Trend Aug16 Aug17 Aug18 Aug19 Aug20 Aug21 Aug22 Aug23 Aug24 Aug25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 34.45 47.16 48.59 50.78 54.72

Acuity Quarterly Data
Aug21 Nov21 Feb22 May22 Aug22 Nov22 Feb23 May23 Aug23 Nov23 Feb24 May24 Aug24 Nov24 Feb25 May25 Aug25 Nov25 Feb26 May26
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 55.01 54.72 55.68 55.70 59.19

STU:AQ8 vs FPS, POWL, AEIS: Cyclically Adjusted Book per Share Comparison

For the Electrical Equipment & Parts subindustry, Acuity'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.


Acuity Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Acuity's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:AQ8
91GF Score
Acuity Inc STU:AQ8
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Acuity 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, Acuity's adjusted Book Value per Share data for the three months ended in May. 2026 was:

Adj_Book= Book Value per Share /CPI of May. 2026 (Change)*Current CPI (May. 2026)
=81.092/335.1230*335.1230
=81.092

Current CPI (May. 2026) = 335.1230.

Acuity Quarterly Data

Book Value per Share CPI Adj_Book
201608 33.852 240.849 47.102
201611 36.596 241.353 50.814
201702 38.664 243.603 53.190
201705 33.201 244.733 45.463
201708 33.692 245.519 45.988
201711 35.061 246.669 47.634
201802 32.509 248.991 43.755
201805 33.876 251.588 45.124
201808 37.177 252.146 49.411
201811 38.656 252.038 51.399
201902 40.016 252.776 53.052
201905 42.467 256.092 55.572
201908 43.725 256.558 57.115
201911 45.506 257.208 59.291
202002 47.437 258.678 61.456
202005 48.593 256.394 63.514
202008 46.246 259.918 59.627
202011 45.034 260.229 57.995
202102 44.716 263.014 56.976
202105 46.957 269.195 58.457
202108 49.381 273.567 60.492
202111 51.803 277.948 62.459
202202 53.312 283.716 62.972
202205 54.885 292.296 62.927
202208 58.083 296.171 65.722
202211 58.080 297.711 65.379
202302 56.999 300.840 63.494
202305 57.815 304.127 63.707
202308 59.523 307.026 64.970
202311 61.755 307.051 67.401
202402 64.488 310.326 69.641
202405 67.935 314.069 72.489
202408 69.904 314.796 74.418
202411 74.856 315.493 79.514
202502 78.051 319.082 81.975
202505 74.658 321.465 77.830
202508 76.244 323.976 78.867
202511 78.721 324.122 81.393
202602 78.893 326.785 80.906
202605 81.092 335.123 81.092

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 €59.19 mean?
Acuity (STU:AQ8) has a Cyclically Adjusted Book per Share of €59.19 as of May. 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 Acuity and its competitors.
Is Acuity's Cyclically Adjusted Book per Share too high?
Acuity's current Cyclically Adjusted Book per Share is €59.19. Overall, Acuity has a GF Score™ of 91/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Acuity's Cyclically Adjusted Book per Share compare to FPS and POWL?
Acuity's Cyclically Adjusted Book per Share of €59.19 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Cyclically Adjusted Book per Share depends on the Industrial Products 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 Acuity and its competitors. Acuity's current Cyclically Adjusted Book per Share is €59.19. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Acuity stock overvalued right now?
Based on GuruFocus' analysis, Acuity (STU:AQ8) is currently considered Fairly Valued. The stock's GF Value™ is €273.49, compared to a current price of €292.00 — trading 6.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is €59.19. Acuity's overall GF Score™ is 91/100 with 2 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 Acuity (STU:AQ8), the current Cyclically Adjusted Book per Share is €59.19 as of May. 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 Acuity (STU:AQ8) Overvalued in 2026?

Based on GuruFocus' analysis, Acuity stock appears to be overvalued. The current stock price of €292.00 is trading 6.8% above its estimated GF Value™ of €273.49. GuruFocus considers Acuity to be Fairly Valued.

Key valuation signals for STU:AQ8:

  • Cyclically Adjusted Book per Share: €59.19
  • GF Value™: €273.49 vs. price of €292.00 (6.8% above fair value)
  • GF Score™: 91/100 with 2 warning signs

No single metric tells the full story. See the STU:AQ8 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Acuity Business Description

Other Exchanges AYI:USA0H90:UK
Address 1170 Peachtree Street, N.E, Suite 1200, Atlanta, GA, USA, 30309-7673
Acuity is a leading industrial technology company that offers lighting, lighting controls, and intelligent building solutions. It designs, manufactures, and brings to market products and services relating to these and other offerings. Acuity has two reportable segments: Acuity Brands Lighting and Acuity Intelligent Spaces. ABL sells commercial, architectural, and specialty lighting, including components and control systems. AIS offers building management and audio/visual solutions to help make buildings intelligent.
91GF Score

Get the complete analysis for STU:AQ8

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

€292.00
Price
€273.49
GF Value