Poste Italiane SpA (MIL:PST) Shiller PE Ratio: 20.45 (As of Aug. 23, 2026) — 66% Above Median

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.
Reviewed by: Charlie Tian Charlie Tian
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.

MIL:PST Poste Italiane SpA MIL:PST
60 GF Score
Price €27.20
GF Value €15.29
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Poste Italiane SpA Shiller PE Ratio?

Poste Italiane SpA MIL:PST +0.44% 60 Shiller PE Ratio is 20.45 as of Aug. 23, 2026, which is 66% above its 10-year median of 12.30. GuruFocus rates MIL:PST with a GF Score™ of 60/100 and a GF Value™ of €15.29 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 360 Conglomerates companies, Poste Italiane SpA ranks worse than 58.61% on this metric.

As of today (2026-08-23), Poste Italiane SpA's current share price is €27.20. Poste Italiane SpA's E10 for the quarter that ended in Jun. 2026 was €1.33. Poste Italiane SpA's Shiller PE Ratio for today is 20.45.

The historical rank and industry rank for Poste Italiane SpA's Shiller PE Ratio or its related term are showing as below:

MIL:PST' s Shiller PE Ratio Range Over the Past 10 Years
Min: 8.66   Med: 12.3   Max: 22.64
Current: 20.52

During the past years, Poste Italiane SpA's highest Shiller PE Ratio was 22.64. The lowest was 8.66. And the median was 12.30.

MIL:PST's Shiller PE Ratio is ranked worse than
58.61% of 360 companies
in the Conglomerates industry
Industry Median: 17.55 vs MIL:PST: 20.52

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.

Poste Italiane SpA's adjusted earnings per share data for the three months ended in Jun. 2026 was €0.412. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is €1.33 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Poste Italiane SpA  (MIL:PST) 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.


Poste Italiane SpA Shiller PE Ratio Related Terms


Poste Italiane SpA Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Poste Italiane SpA'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.

Poste Italiane SpA Shiller PE Ratio Chart

Poste Italiane SpA 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 14.70 9.88 10.40 12.32 17.36

Poste Italiane SpA 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 15.62 16.82 17.36 15.68 21.59

MIL:PST vs MMM, HON: Shiller PE Ratio Comparison

For the Conglomerates subindustry, Poste Italiane SpA'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.


Poste Italiane SpA Shiller PE Ratio vs Conglomerates Industry

For the Conglomerates industry and Industrials sector, Poste Italiane SpA's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Poste Italiane SpA's Shiller PE Ratio falls into.


MIL:PST
60GF Score
Poste Italiane SpA MIL:PST
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Poste Italiane SpA 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.

Poste Italiane SpA's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=27.20/1.33
=20.45

* 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.

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

For example, Poste Italiane SpA'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)
=0.412/126.4000*126.4000
=0.412

Current CPI (Jun. 2026) = 126.4000.

Poste Italiane SpA Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 0.185 100.100 0.234
201612 -0.142 100.300 -0.179
201703 0.269 101.000 0.337
201706 0.122 101.100 0.153
201709 0.164 101.200 0.205
201712 -0.027 101.200 -0.034
201803 0.372 101.800 0.462
201806 0.191 102.400 0.236
201809 0.246 102.600 0.303
201812 0.262 102.300 0.324
201903 0.338 102.800 0.416
201906 0.249 103.100 0.305
201909 0.246 102.900 0.302
201912 0.199 102.800 0.245
202003 0.236 102.900 0.290
202006 0.183 102.900 0.225
202009 0.271 102.300 0.335
202012 0.236 102.600 0.291
202103 0.344 103.700 0.419
202106 0.250 104.200 0.303
202109 0.308 104.900 0.371
202112 0.311 106.600 0.369
202203 0.378 110.400 0.433
202206 0.378 112.500 0.425
202209 0.349 114.200 0.386
202212 0.109 119.000 0.116
202303 0.415 118.800 0.442
202306 0.461 119.700 0.487
202309 0.293 120.300 0.308
202312 0.313 119.700 0.331
202403 0.384 120.200 0.404
202406 0.401 120.700 0.420
202409 0.436 121.200 0.455
202412 0.319 121.200 0.333
202503 0.458 122.500 0.473
202506 0.437 122.700 0.450
202509 0.461 123.100 0.473
202512 0.354 122.600 0.365
202603 0.627 124.560 0.636
202606 0.412 126.400 0.412

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.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 20.45 mean?
Poste Italiane SpA (MIL:PST) has a Shiller PE Ratio of 20.45 as of Aug. 23, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Poste Italiane SpA and its competitors. This is 66% above median its historical median of 12.30. Over the past decade, Poste Italiane SpA's Shiller PE Ratio has ranged from 8.66 to 22.64. According to the industry distribution chart, Poste Italiane SpA ranks #211 out of 360 companies in the Conglomerates industry, placing it in the top 58.6%.
Is Poste Italiane SpA's Shiller PE Ratio too high?
Poste Italiane SpA's current Shiller PE Ratio of 20.45 is 66% above median its 10-year median of 12.30. Over the past 10 years, this metric has ranged from a low of 8.66 to a high of 22.64. The Conglomerates industry median Shiller PE Ratio is 17.55. Poste Italiane SpA's value of 20.45 is 16.5% above this industry median. Based on the distribution chart, Poste Italiane SpA ranks #211 out of 360 companies in the Conglomerates industry, which is below the industry midpoint. Overall, Poste Italiane SpA has a GF Score™ of 60/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Poste Italiane SpA's Shiller PE Ratio compare to MMM and HON?
According to the Conglomerates industry distribution chart, Poste Italiane SpA ranks #211 out of 360 companies for Shiller PE Ratio. This places Poste Italiane SpA in the lower half of its industry. The industry median Shiller PE Ratio is 17.55. Poste Italiane SpA's value of 20.45 is 16.5% above this benchmark. Historically, Poste Italiane SpA's own Shiller PE Ratio has ranged from 8.66 to 22.64 over the past decade. While the company's 10-year median is 12.30 vs. the industry median of 17.55, Poste Italiane SpA has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Conglomerates company?
The median Shiller PE Ratio among Conglomerates companies is 17.55, based on 360 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Poste Italiane SpA's current Shiller PE Ratio of 20.45 is 16.5% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Poste Italiane SpA and its competitors. For the Conglomerates industry, the median Shiller PE Ratio is 17.55 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Poste Italiane SpA's current Shiller PE Ratio is 20.45, which is 66% above median its own 10-year median of 12.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Poste Italiane SpA stock overvalued right now?
Based on GuruFocus' analysis, Poste Italiane SpA (MIL:PST) is currently considered Significantly Overvalued. The stock's GF Value™ is €15.29, compared to a current price of €27.20 — trading 77.9% above its estimated fair value. The current Shiller PE Ratio is 20.45, which is 66% above median its 10-year median of 12.30 and 16.5% above the Conglomerates industry median of 17.55. Poste Italiane SpA's overall GF Score™ is 60/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Poste Italiane SpA (MIL:PST), the current Shiller PE Ratio is 20.45 as of Aug. 23, 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 Poste Italiane SpA (MIL:PST) Overvalued in 2026?

Based on GuruFocus' analysis, Poste Italiane SpA stock appears to be overvalued. The current stock price of €27.20 is trading 77.9% above its estimated GF Value™ of €15.29. GuruFocus considers Poste Italiane SpA to be Significantly Overvalued.

Key valuation signals for MIL:PST:

  • Shiller PE Ratio: 20.45 (66% above median its 10-year median of 12.30)
  • GF Value™: €15.29 vs. price of €27.20 (77.9% above fair value)
  • GF Score™: 60/100 with 6 warning signs
  • Industry Position: 16.5% above the Conglomerates median (#211 of 360)

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


Poste Italiane SpA Business Description

Address Viale Europa, 190, Rome, ITA, 00144
Poste Italiane SpA is an Italian diversified financial-services company. The company's operating segments are Mail, parcels, and distribution; Postepay services; Financial services; and Insurance services. The Postepay services segment generates maximum revenue. It encompasses payment management and e-money services, also carried out through the LIS point-of-sale network, as well as mobile and fixed-line telephony services and electricity and gas marketing. Geographically, the company has a presence in Italy, but also elsewhere in Europe, the Americas, and Asia.
60GF Score

Get the complete analysis for MIL:PST

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

€27.20
Price
€15.29
GF Value