National Oxygen (BOM:507813) Cyclically Adjusted PB Ratio: (As of Sep. 15, 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.

BOM:507813 National Oxygen Ltd BOM:507813
40 GF Score
Price ₹56.33
GF Value ₹49.42
Valuation Modestly Overvalued
! 6 Warning Signs
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What is National Oxygen Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


National Oxygen  (BOM:507813) 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.


National Oxygen Cyclically Adjusted PB Ratio Related Terms


National Oxygen Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for National Oxygen'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.

National Oxygen Cyclically Adjusted PB Ratio Chart

National Oxygen Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 11.33 23.47 0.00 0.00 0.00

National Oxygen Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 0.00 0.00 0.00 0.00 0.00

BOM:507813 vs LIN, SHW, ECL: Cyclically Adjusted PB Ratio Comparison

For the Specialty Chemicals subindustry, National Oxygen'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.


National Oxygen Cyclically Adjusted PB Ratio vs Chemicals Industry

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

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


BOM:507813
40GF Score
National Oxygen Ltd BOM:507813
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

National Oxygen 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.

National Oxygen's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, National Oxygen's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0/167.3573*167.3573
=0.000

Current CPI (Jun. 2026) = 167.3573.

National Oxygen Quarterly Data

Book Value per Share CPI Adj_Book
201609 -3.745 105.961 -5.915
201612 0.000 105.196 0.000
201703 -13.848 105.196 -22.031
201706 0.000 107.109 0.000
201709 -16.964 109.021 -26.041
201712 0.000 109.404 0.000
201803 -17.708 109.786 -26.994
201806 0.000 111.317 0.000
201809 -12.024 115.142 -17.477
201812 0.000 115.142 0.000
201903 -10.281 118.202 -14.556
201906 0.000 120.880 0.000
201909 -11.266 123.175 -15.307
201912 0.000 126.235 0.000
202003 -13.614 124.705 -18.270
202006 0.000 127.000 0.000
202009 -20.914 130.118 -26.900
202012 0.000 130.889 0.000
202103 -15.841 131.771 -20.119
202106 0.000 134.084 0.000
202109 21.545 135.847 26.542
202112 0.000 138.161 0.000
202203 0.033 138.822 0.040
202206 0.000 142.347 0.000
202209 -2.360 144.661 -2.730
202212 0.000 145.763 0.000
202303 -1.940 146.865 -2.211
202306 0.000 150.280 0.000
202309 -4.404 151.492 -4.865
202312 0.000 152.924 0.000
202403 -1.982 153.035 -2.167
202406 0.000 155.789 0.000
202409 -6.806 157.882 -7.214
202412 0.000 158.323 0.000
202503 -15.885 157.552 -16.874
202506 0.000 159.755 0.000
202509 -5.630 162.289 -5.806
202512 0.000 163.281 0.000
202603 -12.109 164.272 -12.336
202606 0.000 167.357 0.000

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.

Is National Oxygen (BOM:507813) Overvalued in 2026?

Based on GuruFocus' analysis, National Oxygen stock appears to be overvalued. The current stock price of ₹56.33 is trading 14% above its estimated GF Value™ of ₹49.42. GuruFocus considers National Oxygen to be Modestly Overvalued.

Key valuation signals for BOM:507813:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: ₹49.42 vs. price of ₹56.33 (14% above fair value)
  • GF Score™: 40/100 with 6 warning signs

No single metric tells the full story. See the BOM:507813 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


National Oxygen Business Description

Address No. 4 (Old No.149), Montieth Road, Door no. S-1, 2nd Floor, Alsa Mall, Egmore, Chennai, TN, IND, 600 008
National Oxygen Ltd is an Indian company engaged in manufacturing industrial gases, such as Oxygen and Nitrogen. It is a supplier of industrial gases both in liquid and gaseous forms. The company's products include Industrial liquid oxygen, Industrial gaseous oxygen, Industrial liquid nitrogen, and dissolved acetylene gas. The product's applications involve blast furnaces, copper smelting, the manufacture of explosives, heart stimulation, cryogenic preservation, and cutting and welding. The group derives key revenue from India.
40GF Score

Get the complete analysis for BOM:507813

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

₹56.33
Price
₹49.42
GF Value