Black Iron (STU:BIN) Cyclically Adjusted PB Ratio: (As of Aug. 15, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

What is Black Iron 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


Black Iron  (STU:BIN) 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.


Black Iron Cyclically Adjusted PB Ratio Related Terms


Black Iron Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Black Iron'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.

Black Iron Cyclically Adjusted PB Ratio Chart

Black Iron 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 1.60 0.73 0.83 2.89 10.54

Black Iron Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 4.05 4.14 7.46 10.54 9.97

Black Iron Cyclically Adjusted PB Ratio Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Black Iron'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.


Black Iron Cyclically Adjusted PB Ratio vs Metals & Mining Industry

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

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



Black Iron 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.

Black Iron's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Black Iron's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=-0.01/330.2130*330.2130
=-0.010

Current CPI (Mar. 2026) = 330.2130.

Black Iron Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.048 241.018 0.066
201609 0.041 241.428 0.056
201612 0.031 241.432 0.042
201703 0.027 243.801 0.037
201706 0.028 244.955 0.038
201709 0.028 246.819 0.037
201712 0.020 246.524 0.027
201803 0.022 249.554 0.029
201806 0.011 251.989 0.014
201809 0.006 252.439 0.008
201812 0.002 251.233 0.003
201903 0.000 254.202 0.000
201906 -0.002 256.143 -0.003
201909 -0.006 256.759 -0.008
201912 -0.008 256.974 -0.010
202003 -0.008 258.115 -0.010
202006 -0.008 257.797 -0.010
202009 -0.005 260.280 -0.006
202012 -0.019 260.474 -0.024
202103 0.002 264.877 0.002
202106 0.001 271.696 0.001
202109 0.019 274.310 0.023
202112 0.014 278.802 0.017
202203 0.008 287.504 0.009
202206 0.007 296.311 0.008
202209 0.006 296.808 0.007
202212 0.004 296.797 0.004
202303 0.002 301.836 0.002
202306 0.001 305.109 0.001
202309 0.001 307.789 0.001
202312 0.000 306.746 0.000
202403 -0.001 312.332 -0.001
202406 -0.002 314.175 -0.002
202409 -0.003 315.301 -0.003
202412 -0.006 315.605 -0.006
202503 -0.007 319.799 -0.007
202506 -0.007 322.561 -0.007
202509 -0.008 324.800 -0.008
202512 -0.009 324.054 -0.009
202603 -0.010 330.213 -0.010

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.


Black Iron Business Description

Other Exchanges BKIRF:USA0ULQ:UKBKI:Canada
Address 198 Davenport Road, Toronto, ON, CAN, M5R 1J2
Black Iron Inc is engaged in the exploration and development of ferrous metals in Ukraine, namely the Shymanivske iron ore project located in Kryvyi Rih, Ukraine. The Shymanivske project is surrounded by five operating iron ore mines, including several owned by Metinvest and ArcelorMittal's iron ore complex.