AMTX (Aemetis) Cyclically Adjusted PB Ratio: (As of Aug. 18, 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.

AMTX Aemetis Inc AMTX
42 GF Score
Price $1.86
GF Value $1.93
Valuation Fairly Valued
! 7 Warning Signs
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What is Aemetis Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Aemetis  (NAS:AMTX) 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.


Aemetis Cyclically Adjusted PB Ratio Related Terms


Aemetis Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Aemetis'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.

Aemetis Cyclically Adjusted PB Ratio Chart

Aemetis 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 0.00 0.00 0.00 0.00

Aemetis 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

AMTX vs KBLB, NTIC, FSI: Cyclically Adjusted PB Ratio Comparison

For the Specialty Chemicals subindustry, Aemetis'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.


Aemetis Cyclically Adjusted PB Ratio vs Chemicals Industry

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

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


AMTX
42GF Score
Aemetis Inc AMTX
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Aemetis 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.

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

For example, Aemetis'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)
=-4.471/333.9520*333.9520
=-4.471

Current CPI (Jun. 2026) = 333.9520.

Aemetis Quarterly Data

Book Value per Share CPI Adj_Book
201609 -2.436 241.428 -3.370
201612 -2.509 241.432 -3.470
201703 -2.937 243.801 -4.023
201706 -3.226 244.955 -4.398
201709 -3.574 246.819 -4.836
201712 -3.902 246.524 -5.286
201803 -4.379 249.554 -5.860
201806 -4.648 251.989 -6.160
201809 -4.911 252.439 -6.497
201812 -5.448 251.233 -7.242
201903 -5.897 254.202 -7.747
201906 -6.520 256.143 -8.501
201909 -6.766 256.759 -8.800
201912 -7.505 256.974 -9.753
202003 -8.059 258.115 -10.427
202006 -7.939 257.797 -10.284
202009 -8.349 260.280 -10.712
202012 -8.092 260.474 -10.375
202103 -4.635 264.877 -5.844
202106 -3.928 271.696 -4.828
202109 -4.056 274.310 -4.938
202112 -3.593 278.802 -4.304
202203 -3.762 287.504 -4.370
202206 -3.548 296.311 -3.999
202209 -5.276 296.808 -5.936
202212 -5.628 296.797 -6.333
202303 -6.062 301.836 -6.707
202306 -6.259 305.109 -6.851
202309 -5.078 307.789 -5.510
202312 -5.297 306.746 -5.767
202403 -5.447 312.332 -5.824
202406 -5.438 314.175 -5.780
202409 -5.415 315.301 -5.735
202412 -5.161 315.605 -5.461
202503 -5.194 319.799 -5.424
202506 -4.666 322.561 -4.831
202509 -4.690 324.800 -4.822
202512 -4.636 324.054 -4.778
202603 -4.635 330.213 -4.687
202606 -4.471 333.952 -4.471

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 Aemetis (AMTX) Overvalued in 2026?

Based on GuruFocus' analysis, Aemetis stock appears to be undervalued. The current stock price of $1.86 is trading 3.6% below its estimated GF Value™ of $1.93. GuruFocus considers Aemetis to be Fairly Valued.

Key valuation signals for AMTX:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $1.93 vs. price of $1.86 (3.6% below fair value)
  • GF Score™: 42/100 with 7 warning signs

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


Aemetis Business Description

Other Exchanges DW51:Germany
Address 20400 Stevens Creek Boulevard, Suite 700, Cupertino, CA, USA, 95014
Aemetis Inc is an renewable fuel and biochemicals company focused on the production of renewable fuels and chemicals through the acquisition, development and commercialization of technologies that replace traditional petroleum-based products through the conversion of first-generation ethanol and biodiesel plants into biorefineries. In addition to low carbon renewable fuel ethanol, the Keyes Plant produces Wet Distillers Grains, Distillers Corn Oil, and Condensed Distillers Solubles, all of which are sold to local dairies and feedlots as animal feed. The operations include California Ethanol, California Dairy Renewable Natural Gas and India Biodiesel. It operates in the reportable geographic segments of North America and India.
42GF Score

Get the complete analysis for AMTX

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

$1.86
Price
$1.93
GF Value