LightAir AB (NGM:LAIR) Cyclically Adjusted PB Ratio: 0.01 (As of Jul. 26, 2026) — 50% Below Median

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.

NGM:LAIR LightAir AB NGM:LAIR
32 GF Score
Price kr0.75
GF Value kr0.28
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is LightAir AB Cyclically Adjusted PB Ratio?

LightAir AB NGM:LAIR +1.35% 32 Cyclically Adjusted PB Ratio is 0.01 as of Jul. 26, 2026, which is 50% below its 10-year median of 0.02. GuruFocus rates NGM:LAIR with a GF Score™ of 32/100 and a GF Value™ of kr0.28 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 2,278 Industrial Products companies, LightAir AB ranks better than 99.96% on this metric.

As of today (2026-07-26), LightAir AB's current share price is kr0.75. LightAir AB's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec25 was kr53.84. LightAir AB's Cyclically Adjusted PB Ratio for today is 0.01.

The historical rank and industry rank for LightAir AB's Cyclically Adjusted PB Ratio or its related term are showing as below:

NGM:LAIR' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.01   Med: 0.02   Max: 0.3
Current: 0.01

During the past 13 years, LightAir AB's highest Cyclically Adjusted PB Ratio was 0.30. The lowest was 0.01. And the median was 0.02.

NGM:LAIR's Cyclically Adjusted PB Ratio is ranked better than
99.96% of 2278 companies
in the Industrial Products industry
Industry Median: 2.11 vs NGM:LAIR: 0.01

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.

LightAir AB's adjusted book value per share data of for the fiscal year that ended in Dec25 was kr0.490. 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 kr53.84 for the trailing ten years ended in Dec25.

Shiller PE for Stocks: The True Measure of Stock Valuation


LightAir AB  (NGM:LAIR) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


LightAir AB Cyclically Adjusted PB Ratio Related Terms


LightAir AB Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for LightAir AB's Cyclically Adjusted PB Ratio 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.

LightAir AB Cyclically Adjusted PB Ratio Chart

LightAir AB Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.30 0.10 0.02 0.01

LightAir AB Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Cyclically Adjusted PB Ratio 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 0.10 0.00 0.02 0.00 0.01

NGM:LAIR vs VLTO, ZWS, CECO: Cyclically Adjusted PB Ratio Comparison

For the Pollution & Treatment Controls subindustry, LightAir AB'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.


LightAir AB Cyclically Adjusted PB Ratio vs Industrial Products Industry

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

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


NGM:LAIR
32GF Score
LightAir AB NGM:LAIR
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

LightAir AB Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

LightAir AB's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=0.75/53.84
=0.01

* 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.

LightAir AB's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec25 is calculated as:

For example, LightAir AB's adjusted Book Value per Share data for the fiscal year that ended in Dec25 was:

Adj_Book=Book Value per Share/CPI of Dec25 (Change)*Current CPI (Dec25)
=0.49/133.3900*133.3900
=0.490

Current CPI (Dec25) = 133.3900.

LightAir AB Annual Data

Book Value per Share CPI Adj_Book
201612 170.061 102.022 222.350
201712 31.763 103.793 40.820
201812 55.651 105.912 70.089
201912 49.973 107.766 61.855
202012 60.979 108.296 75.109
202112 35.186 112.486 41.725
202212 16.544 126.365 17.464
202312 7.149 131.912 7.229
202412 1.215 132.987 1.219
202512 0.490 133.390 0.490

Add all the adjusted book value per share together and divide the count will get our 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.

What does a Cyclically Adjusted PB Ratio of 0.01 mean?
LightAir AB (NGM:LAIR) has a Cyclically Adjusted PB Ratio of 0.01 as of Jul. 26, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on LightAir AB and its competitors. This is 50% below median its historical median of 0.02. Over the past decade, LightAir AB's Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.30. According to the industry distribution chart, LightAir AB ranks #1 out of 2278 companies in the Industrial Products industry, placing it in the top 0%.
Is LightAir AB's Cyclically Adjusted PB Ratio too high?
LightAir AB's current Cyclically Adjusted PB Ratio of 0.01 is 50% below median its 10-year median of 0.02. Over the past 10 years, this metric has ranged from a low of 0.01 to a high of 0.30. The Industrial Products industry median Cyclically Adjusted PB Ratio is 2.11. LightAir AB's value of 0.01 is 99.5% below this industry median. Based on the distribution chart, LightAir AB ranks #1 out of 2278 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, LightAir AB has a GF Score™ of 32/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does LightAir AB's Cyclically Adjusted PB Ratio compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, LightAir AB ranks #1 out of 2278 companies for Cyclically Adjusted PB Ratio. This places LightAir AB in the top 0% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 2.11. LightAir AB's value of 0.01 is 99.5% below this benchmark. Historically, LightAir AB's own Cyclically Adjusted PB Ratio has ranged from 0.01 to 0.30 over the past decade. While the company's 10-year median is 0.02 vs. the industry median of 2.11, LightAir AB has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for an Industrial Products company?
The median Cyclically Adjusted PB Ratio among Industrial Products companies is 2.11, based on 2,278 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. LightAir AB's current Cyclically Adjusted PB Ratio of 0.01 is 99.5% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on LightAir AB and its competitors. For the Industrial Products industry, the median Cyclically Adjusted PB Ratio is 2.11 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LightAir AB's current Cyclically Adjusted PB Ratio is 0.01, which is 50% below median its own 10-year median of 0.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is LightAir AB stock overvalued right now?
Based on GuruFocus' analysis, LightAir AB (NGM:LAIR) is currently considered Significantly Overvalued. The stock's GF Value™ is kr0.28, compared to a current price of kr0.75 — trading 167.9% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.01, which is 50% below median its 10-year median of 0.02 and 99.5% below the Industrial Products industry median of 2.11. LightAir AB's overall GF Score™ is 32/100 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For LightAir AB (NGM:LAIR), the current Cyclically Adjusted PB Ratio is 0.01 as of Jul. 26, 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 LightAir AB (NGM:LAIR) Overvalued in 2026?

Based on GuruFocus' analysis, LightAir AB stock appears to be overvalued. The current stock price of kr0.75 is trading 167.9% above its estimated GF Value™ of kr0.28. GuruFocus considers LightAir AB to be Significantly Overvalued.

Key valuation signals for NGM:LAIR:

  • Cyclically Adjusted PB Ratio: 0.01 (50% below median its 10-year median of 0.02)
  • GF Value™: kr0.28 vs. price of kr0.75 (167.9% above fair value)
  • GF Score™: 32/100 with 3 warning signs
  • Industry Position: 99.5% below the Industrial Products median (#1 of 2278)

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


LightAir AB Business Description

Address Svetsarvagen 13, kersberga, Stockholm, SWE, 184 42
LightAir AB is engaged in manufacturing and selling of air purifiers used for different industrial purposes such as traffic pollution, pet allergen, industrial pollution, smoke, and others. Its Air purifiers products include IonFlow Signature, IonFlow Evolution, IonFlow Style, IonFlow Surface, and others. The company distributes its products in Europe, Asia, and North America.
32GF Score

Get the complete analysis for NGM:LAIR

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

kr0.75
Price
kr0.28
GF Value