AMTX (Aemetis) Cyclically Adjusted Book per Share: $-6.12 (As of Jun. 2026)

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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.

AMTX Aemetis Inc AMTX
42 GF Score
Price $1.85
GF Value $1.93
Valuation Fairly Valued
! 7 Warning Signs
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What is Aemetis Cyclically Adjusted Book per Share?

Aemetis AMTX +3.33% 42 Cyclically Adjusted Book per Share is $-6.12 as of Jun. 2026. GuruFocus rates AMTX with a GF Score™ of 42/100 and a GF Value™ of $1.93 (Fairly Valued). The stock has 7 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Aemetis's adjusted book value per share for the three months ended in Jun. 2026 was $-4.471. 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 $-6.12 for the trailing ten years ended in Jun. 2026.

During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -12.50% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -13.30% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Aemetis was -12.50% per year. The lowest was -51.40% per year. And the median was -16.90% per year.

As of today (2026-08-18), Aemetis's current stock price is $1.85. Aemetis's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $-6.12. Aemetis's Cyclically Adjusted PB Ratio of today is .

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Aemetis was 2.34. The lowest was 1.35. And the median was 2.01.


Aemetis  (NAS:AMTX) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Aemetis was 2.34. The lowest was 1.35. And the median was 2.01.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Aemetis Cyclically Adjusted Book per Share Related Terms


Aemetis Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Aemetis's Cyclically Adjusted Book per Share 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 Book per Share Chart

Aemetis Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only -3.56 -4.12 -4.76 -5.42 -5.86

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 Book per Share 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 -5.72 -5.82 -5.86 -6.02 -6.12

AMTX vs KBLB, NTIC, FSI: Cyclically Adjusted Book per Share 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 Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Aemetis Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

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.

What does a Cyclically Adjusted Book per Share of $-6.12 mean?
Aemetis (AMTX) has a Cyclically Adjusted Book per Share of $-6.12 as of Jun. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Aemetis and its competitors.
Is Aemetis' Cyclically Adjusted Book per Share too high?
Aemetis' current Cyclically Adjusted Book per Share is $-6.12. Overall, Aemetis has a GF Score™ of 42/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aemetis' Cyclically Adjusted Book per Share compare to KBLB and NTIC?
Aemetis' Cyclically Adjusted Book per Share of $-6.12 can be compared against companies in the Chemicals industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Chemicals company?
A good Cyclically Adjusted Book per Share depends on the Chemicals industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Aemetis and its competitors. Aemetis's current Cyclically Adjusted Book per Share is $-6.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aemetis stock overvalued right now?
Based on GuruFocus' analysis, Aemetis (AMTX) is currently considered Fairly Valued. The stock's GF Value™ is $1.93, compared to a current price of $1.85 — trading 4.1% below its estimated fair value. The current Cyclically Adjusted Book per Share is $-6.12. Aemetis' overall GF Score™ is 42/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Aemetis (AMTX), the current Cyclically Adjusted Book per Share is $-6.12 as of Jun. 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 Aemetis (AMTX) Overvalued in 2026?

Based on GuruFocus' analysis, Aemetis stock appears to be undervalued. The current stock price of $1.85 is trading 4.1% below its estimated GF Value™ of $1.93. GuruFocus considers Aemetis to be Fairly Valued.

Key valuation signals for AMTX:

  • Cyclically Adjusted Book per Share: $-6.12
  • GF Value™: $1.93 vs. price of $1.85 (4.1% 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 Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$1.85
Price
$1.93
GF Value