ALTO (Alto Ingredients) E10: $-0.64 (As of Mar. 2026)


ALTO Alto Ingredients Inc ALTO
38 GF Score
Price $5.06
GF Value $1.44
Valuation Significantly Overvalued
! 3 Warning Signs
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What is Alto Ingredients E10?

Alto Ingredients ALTO -1.08% 38 E10 is $-0.64 as of Mar. 2026. GuruFocus rates ALTO with a GF Score™ of 38/100 and a GF Value™ of $1.44 (Significantly Overvalued). The stock has 3 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Alto Ingredients's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.050. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-0.64 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was -6.80% per year. During the past 5 years, the average E10 Growth Rate was -0.20% 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 E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of Alto Ingredients was 80.90% per year. The lowest was -6.80% per year. And the median was 3.45% per year.

As of today (2026-06-25), Alto Ingredients's current stock price is $5.055. Alto Ingredients's E10 for the quarter that ended in Mar. 2026 was $-0.64. Alto Ingredients's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Alto Ingredients was 0.08. The lowest was 0.02. And the median was 0.05.


Alto Ingredients  (NAS:ALTO) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

During the past 13 years, the highest Shiller P/E Ratio of Alto Ingredients was 0.08. The lowest was 0.02. And the median was 0.05.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Alto Ingredients E10 Related Terms


Alto Ingredients E10 Historical Data

* Premium members only.

The historical data trend for Alto Ingredients's E10 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.

Alto Ingredients E10 Chart

Alto Ingredients Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -0.81 -0.55 -0.56 -0.74 -0.67

Alto Ingredients Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
E10 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 -0.75 -0.77 -0.71 -0.67 -0.64

ALTO vs OEC, GEVO, MATV: E10 Comparison

For the Specialty Chemicals subindustry, Alto Ingredients's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


Alto Ingredients Shiller PE Ratio vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, Alto Ingredients's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Alto Ingredients's Shiller PE Ratio falls into.


ALTO
38GF Score
Alto Ingredients Inc ALTO
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Alto Ingredients E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

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, Alto Ingredients's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.05/330.2130*330.2130
=0.050

Current CPI (Mar. 2026) = 330.2130.

Alto Ingredients Quarterly Data

per share eps CPI Adj_EPS
201606 0.110 241.018 0.151
201609 -0.090 241.428 -0.123
201612 0.300 241.432 0.410
201703 -0.310 243.801 -0.420
201706 -0.220 244.955 -0.297
201709 -0.010 246.819 -0.013
201712 -0.320 246.524 -0.429
201803 -0.190 249.554 -0.251
201806 -0.310 251.989 -0.406
201809 -0.180 252.439 -0.235
201812 -0.740 251.233 -0.973
201903 -0.290 254.202 -0.377
201906 -0.170 256.143 -0.219
201909 -0.580 256.759 -0.746
201912 -0.850 256.974 -1.092
202003 -0.470 258.115 -0.601
202006 0.270 257.797 0.346
202009 0.240 260.280 0.304
202012 -0.300 260.474 -0.380
202103 0.060 264.877 0.075
202106 0.110 271.696 0.134
202109 -0.050 274.310 -0.060
202112 0.490 278.802 0.580
202203 -0.040 287.504 -0.046
202206 0.290 296.311 0.323
202209 -0.390 296.808 -0.434
202212 -0.460 296.797 -0.512
202303 -0.180 301.836 -0.197
202306 0.100 305.109 0.108
202309 -0.050 307.789 -0.054
202312 -0.260 306.746 -0.280
202403 -0.170 312.332 -0.180
202406 -0.050 314.175 -0.053
202409 -0.040 315.301 -0.042
202412 -0.570 315.605 -0.596
202503 -0.160 319.799 -0.165
202506 -0.150 322.561 -0.154
202509 0.190 324.800 0.193
202512 0.280 324.054 0.285
202603 0.050 330.213 0.050

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of $-0.64 mean?
Alto Ingredients (ALTO) has a E10 of $-0.64 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Alto Ingredients and its competitors.
Is Alto Ingredients' E10 too high?
Alto Ingredients' current E10 is $-0.64. Overall, Alto Ingredients has a GF Score™ of 38/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Alto Ingredients' E10 compare to OEC and GEVO?
Alto Ingredients' E10 of $-0.64 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 E10 for a Chemicals company?
A good E10 depends on the Chemicals industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Alto Ingredients and its competitors. Alto Ingredients's current E10 is $-0.64. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Alto Ingredients stock overvalued right now?
Based on GuruFocus' analysis, Alto Ingredients (ALTO) is currently considered Significantly Overvalued. The stock's GF Value™ is $1.44, compared to a current price of $5.06 — trading 251% above its estimated fair value. The current E10 is $-0.64. Alto Ingredients' overall GF Score™ is 38/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Alto Ingredients (ALTO), the current E10 is $-0.64 as of Mar. 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 Alto Ingredients (ALTO) Overvalued in 2026?

Based on GuruFocus' analysis, Alto Ingredients stock appears to be overvalued. The current stock price of $5.06 is trading 251% above its estimated GF Value™ of $1.44. GuruFocus considers Alto Ingredients to be Significantly Overvalued.

Key valuation signals for ALTO:

  • E10: $-0.64
  • GF Value™: $1.44 vs. price of $5.06 (251% above fair value)
  • GF Score™: 38/100 with 3 warning signs

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


Alto Ingredients Business Description

Other Exchanges FPRP:Germany
Address 1300 South Second Street, Pekin, IL, USA, 61554
Alto Ingredients Inc is a producer and distributor of specialty alcohols, renewable fuels and essential ingredients in the United States. The company serves five markets: Health, Home and Beauty, Food and Beverage, Essential Ingredients, and Renewable Fuels. Its customers include food and beverage companies and consumer products manufacturers and distributors. The company operates under three segments: Marketing and distribution, Pekin Campus production, and Western production.
38GF Score

Get the complete analysis for ALTO

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$5.06
Price
$1.44
GF Value