Olin (OLN) Shiller PE Ratio: (As of Sep. 21, 2026)

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OLN Olin Corp OLN
58 GF Score
Price $16.54
GF Value $30.23
Valuation Possible Value Trap
! 7 Warning Signs
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What is Olin Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Olin  (NYSE:OLN) 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.


Olin Shiller PE Ratio Related Terms


Olin Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Olin'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.

Olin Shiller PE Ratio Chart

Olin 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 42.36 25.20 24.12 15.27 9.52

Olin 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 8.98 10.97 9.26 13.21 8.75

OLN vs HUN, REX, GPRE: Shiller PE Ratio Comparison

For the Chemicals subindustry, Olin'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.


Olin Shiller PE Ratio vs Chemicals Industry

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

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


OLN
58GF Score
Olin Corp OLN
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Olin 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.

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

For example, Olin'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)
=-0.1168/333.9520*333.9520
=-0.117

Current CPI (Jun. 2026) = 333.9520.

Olin Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 0.110 241.428 0.152
201612 0.100 241.432 0.138
201703 0.080 243.801 0.110
201706 -0.040 244.955 -0.055
201709 0.310 246.819 0.419
201712 2.903 246.524 3.933
201803 0.120 249.554 0.161
201806 0.350 251.989 0.464
201809 1.160 252.439 1.535
201812 0.319 251.233 0.423
201903 0.251 254.202 0.330
201906 -0.122 256.143 -0.158
201909 0.272 256.759 0.353
201912 -0.488 256.974 -0.634
202003 -0.507 258.115 -0.656
202006 -0.761 257.797 -0.985
202009 -4.666 260.280 -5.987
202012 -0.209 260.474 -0.268
202103 1.515 264.877 1.910
202106 2.172 271.696 2.670
202109 2.384 274.310 2.902
202112 1.887 278.802 2.260
202203 2.478 287.504 2.878
202206 2.762 296.311 3.113
202209 2.184 296.808 2.458
202212 1.428 296.797 1.606
202303 1.163 301.836 1.287
202306 1.127 305.109 1.233
202309 0.820 307.789 0.889
202312 0.428 306.746 0.466
202403 0.399 312.332 0.426
202406 0.617 314.175 0.656
202409 -0.213 315.301 -0.226
202412 0.091 315.605 0.097
202503 0.012 319.799 0.013
202506 -0.011 322.561 -0.012
202509 0.372 324.800 0.382
202512 -0.752 324.054 -0.775
202603 -0.729 330.213 -0.738
202606 -0.117 333.952 -0.117

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 Olin (OLN) Overvalued in 2026?

Based on GuruFocus' analysis, Olin stock appears to be undervalued. The current stock price of $16.54 is trading 45.3% below its estimated GF Value™ of $30.23. GuruFocus considers Olin to be Possible Value Trap.

Key valuation signals for OLN:

  • Shiller PE Ratio:
  • GF Value™: $30.23 vs. price of $16.54 (45.3% below fair value)
  • GF Score™: 58/100 with 7 warning signs

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


Olin Business Description

Other Exchanges OLN:Germany
Address 190 Carondelet Plaza, Suite 1530, Clayton, MO, USA, 63105
Olin was founded in 1892 and has been publicly listed since 1917. The company has a unique dual identity compared with some of its chemical peers: it is the world's largest chlor-alkali producer by capacity, and it owns the Winchester brand, a leading US ammunition manufacturer. Olin has three reportable segments: chlor-alkali products and vinyls (CAPV or CAP), Epoxies, and Winchester, which represent around 55%, 20%, and 25% of sales, respectively.
58GF Score

Get the complete analysis for OLN

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

$16.54
Price
$30.23
GF Value