ALTO (Alto Ingredients) Shiller PE Ratio: (As of Aug. 16, 2026)

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ALTO Alto Ingredients Inc ALTO
38 GF Score
Price $4.16
GF Value $1.46
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Alto Ingredients Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Alto Ingredients  (NAS:ALTO) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Alto Ingredients Shiller PE Ratio Related Terms


Alto Ingredients Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Alto Ingredients's Shiller PE 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.

Alto Ingredients Shiller PE Ratio Chart

Alto Ingredients Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Alto Ingredients Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE 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

ALTO vs OEC, GEVO, MATV: Shiller PE Ratio 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
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Alto Ingredients Shiller PE Ratio Calculation

For Shiller PE Ratio, 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 PE Ratio is also called PE10.

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

Alto Ingredients's E10 for the quarter that ended in Jun. 2026 is calculated as:

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

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.15/333.9520*333.9520
=0.150

Current CPI (Jun. 2026) = 333.9520.

Alto Ingredients Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 -0.090 241.428 -0.124
201612 0.300 241.432 0.415
201703 -0.310 243.801 -0.425
201706 -0.220 244.955 -0.300
201709 -0.010 246.819 -0.014
201712 -0.320 246.524 -0.433
201803 -0.190 249.554 -0.254
201806 -0.310 251.989 -0.411
201809 -0.180 252.439 -0.238
201812 -0.740 251.233 -0.984
201903 -0.290 254.202 -0.381
201906 -0.170 256.143 -0.222
201909 -0.580 256.759 -0.754
201912 -0.850 256.974 -1.105
202003 -0.470 258.115 -0.608
202006 0.270 257.797 0.350
202009 0.240 260.280 0.308
202012 -0.300 260.474 -0.385
202103 0.060 264.877 0.076
202106 0.110 271.696 0.135
202109 -0.050 274.310 -0.061
202112 0.490 278.802 0.587
202203 -0.040 287.504 -0.046
202206 0.290 296.311 0.327
202209 -0.390 296.808 -0.439
202212 -0.460 296.797 -0.518
202303 -0.180 301.836 -0.199
202306 0.100 305.109 0.109
202309 -0.050 307.789 -0.054
202312 -0.260 306.746 -0.283
202403 -0.170 312.332 -0.182
202406 -0.050 314.175 -0.053
202409 -0.040 315.301 -0.042
202412 -0.570 315.605 -0.603
202503 -0.160 319.799 -0.167
202506 -0.150 322.561 -0.155
202509 0.190 324.800 0.195
202512 0.280 324.054 0.289
202603 0.050 330.213 0.051
202606 0.150 333.952 0.150

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

Is Alto Ingredients (ALTO) Overvalued in 2026?

Based on GuruFocus' analysis, Alto Ingredients stock appears to be overvalued. The current stock price of $4.16 is trading 184.9% above its estimated GF Value™ of $1.46. GuruFocus considers Alto Ingredients to be Significantly Overvalued.

Key valuation signals for ALTO:

  • Shiller PE Ratio:
  • GF Value™: $1.46 vs. price of $4.16 (184.9% above fair value)
  • GF Score™: 38/100 with 4 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

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

$4.16
Price
$1.46
GF Value