AYI (Acuity) Cyclically Adjusted Book per Share: $69.46 (As of May. 2026)

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AYI Acuity Inc AYI
92 GF Score
Price $328.39
GF Value $316.43
Valuation Fairly Valued
! 2 Warning Signs
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What is Acuity Cyclically Adjusted Book per Share?

Acuity AYI -2.80% 92 Cyclically Adjusted Book per Share is $69.46 as of May. 2026. GuruFocus rates AYI with a GF Score™ of 92/100 and a GF Value™ of $316.43 (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 $94.734. 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 $69.46 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 $328.39. Acuity's Cyclically Adjusted Book per Share for the quarter that ended in May. 2026 was $69.46. Acuity's Cyclically Adjusted PB Ratio of today is 4.73.

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  (NYSE:AYI) 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
=328.39/69.46
=4.73

* 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 40.49 47.43 52.60 57.74 63.80

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 62.16 63.80 64.98 66.66 69.46

AYI 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.


AYI
92GF Score
Acuity Inc AYI
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)
=94.734/335.1230*335.1230
=94.734

Current CPI (May. 2026) = 335.1230.

Acuity Quarterly Data

Book Value per Share CPI Adj_Book
201608 37.950 240.849 52.805
201611 39.478 241.353 54.816
201702 41.175 243.603 56.644
201705 36.686 244.733 50.236
201708 39.778 245.519 54.295
201711 41.152 246.669 55.909
201802 40.134 248.991 54.017
201805 40.042 251.588 53.337
201808 42.930 252.146 57.058
201811 43.927 252.038 58.408
201902 45.421 252.776 60.218
201905 47.503 256.092 62.163
201908 48.638 256.558 63.532
201911 50.283 257.208 65.515
202002 51.730 258.678 67.017
202005 52.991 256.394 69.263
202008 54.730 259.918 70.566
202011 53.232 260.229 68.552
202102 54.070 263.014 68.894
202105 57.055 269.195 71.028
202108 58.096 273.567 71.168
202111 59.136 277.948 71.301
202202 60.514 283.716 71.479
202205 58.018 292.296 66.519
202208 58.848 296.171 66.588
202211 59.205 297.711 66.645
202302 61.027 300.840 67.981
202305 62.843 304.127 69.248
202308 64.910 307.026 70.850
202311 66.834 307.051 72.944
202402 69.566 310.326 75.125
202405 73.443 314.069 78.366
202408 77.071 314.796 82.048
202411 79.465 315.493 84.409
202502 81.303 319.082 85.390
202505 84.169 321.465 87.745
202508 88.759 323.976 91.813
202511 91.007 324.122 94.096
202602 93.254 326.785 95.633
202605 94.734 335.123 94.734

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 $69.46 mean?
Acuity (AYI) has a Cyclically Adjusted Book per Share of $69.46 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 $69.46. Overall, Acuity has a GF Score™ of 92/100 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 $69.46 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 $69.46. 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 (AYI) is currently considered Fairly Valued. The stock's GF Value™ is $316.43, compared to a current price of $328.39 — trading 3.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is $69.46. Acuity's overall GF Score™ is 92/100 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 (AYI), the current Cyclically Adjusted Book per Share is $69.46 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 (AYI) Overvalued in 2026?

Based on GuruFocus' analysis, Acuity stock appears to be overvalued. The current stock price of $328.39 is trading 3.8% above its estimated GF Value™ of $316.43. GuruFocus considers Acuity to be Fairly Valued.

Key valuation signals for AYI:

  • Cyclically Adjusted Book per Share: $69.46
  • GF Value™: $316.43 vs. price of $328.39 (3.8% above fair value)
  • GF Score™: 92/100 with 2 warning signs

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


Acuity Business Description

Other Exchanges 0H90: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.
92GF Score

Get the complete analysis for AYI

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

$328.39
Price
$316.43
GF Value