ATRNF (Astron) Cyclically Adjusted PB Ratio: (As of Sep. 02, 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.
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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.

ATRNF Astron Ltd ATRNF
31 GF Score
Price $2.55
GF Value $1.49
! 4 Warning Signs
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What is Astron Cyclically Adjusted PB Ratio?

Note: If the price history is too short, we do not calculate current Cyclically Adjusted PB Ratio for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


Astron  (OTCPK:ATRNF) 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.


Astron Cyclically Adjusted PB Ratio Related Terms


Astron Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Astron'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.

Astron Cyclically Adjusted PB Ratio Chart

Astron Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.53 0.48 0.51 0.82 0.70

Astron Quarterly 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 0.00 0.82 0.00 0.70 0.00

Astron Cyclically Adjusted PB Ratio Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Astron'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.


Astron Cyclically Adjusted PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Astron's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ATRNF
31GF Score
Astron Ltd ATRNF
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Astron 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.

Astron's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 is calculated as:

For example, Astron's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book=Book Value per Share/CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0.317/324.0540*324.0540
=0.317

Current CPI (Dec. 2025) = 324.0540.

Astron Quarterly Data

Book Value per Share CPI Adj_Book
200606 0.810 202.900 1.294
200612 0.801 201.800 1.286
200706 0.755 208.352 1.174
200712 0.732 210.036 1.129
200806 1.646 218.815 2.438
200812 1.717 210.228 2.647
200906 1.662 215.693 2.497
200912 1.607 215.949 2.411
201006 1.599 217.965 2.377
201012 1.614 219.179 2.386
201106 1.551 225.722 2.227
201112 1.625 225.672 2.333
201206 1.620 229.478 2.288
201212 1.603 229.601 2.262
201306 1.601 233.504 2.222
201312 1.591 233.049 2.212
201406 0.788 238.343 1.071
201412 0.822 234.812 1.134
201506 0.915 238.638 1.243
201512 0.892 236.525 1.222
201606 0.861 241.018 1.158
201612 0.832 241.432 1.117
201706 0.836 244.955 1.106
201712 0.841 246.524 1.105
201806 0.899 251.989 1.156
201812 0.804 251.233 1.037
201906 0.816 256.143 1.032
201912 0.793 256.974 1.000
202006 0.763 257.797 0.959
202012 0.784 260.474 0.975
202106 0.753 271.696 0.898
202112 0.726 278.802 0.844
202206 0.824 296.311 0.901
202212 0.646 296.797 0.705
202306 0.616 305.109 0.654
202312 0.504 306.746 0.532
202406 0.467 314.175 0.482
202412 0.524 315.605 0.538
202506 0.583 322.561 0.586
202512 0.317 324.054 0.317

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 Astron (ATRNF) Overvalued in 2026?

Based on GuruFocus' analysis, Astron stock appears to be overvalued. The current stock price of $2.55 is trading 71.1% above its estimated GF Value™ of $1.49.

Key valuation signals for ATRNF:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $1.49 vs. price of $2.55 (71.1% above fair value)
  • GF Score™: 31/100 with 4 warning signs

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


Astron Business Description

Other Exchanges ATR:Australia
Address 224 Queen Street, Level 10, Melbourne, VIC, AUS, 3000
Astron Ltd is a mineral sand mining company. It is engaged in the evaluation and advancement of downstream applications for zircon and titanium and titanium-based materials trading. The company segments are Donald Rare Earths & Mineral Sands, China, and Others. Geographically, it derives maximum revenue from China, and also has its presence in Hong Kong, Australia, and Other Countries.
31GF Score

Get the complete analysis for ATRNF

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

$2.55
Price
$1.49
GF Value