Piaggio & C. SpA (MIL:PIA) Shiller PE Ratio: 11.97 (As of Sep. 13, 2026) — 59% Below 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:PIA Piaggio & C. SpA MIL:PIA
72 GF Score
Price €1.92
GF Value €1.93
Valuation Fairly Valued
! 8 Warning Signs
View Full Analysis

What is Piaggio & C. SpA Shiller PE Ratio?

Piaggio & C. SpA MIL:PIA -1.14% 72 Shiller PE Ratio is 11.97 as of Sep. 13, 2026, which is 59% below its 10-year median of 29.33. GuruFocus rates MIL:PIA with a GF Score™ of 72/100 and a GF Value™ of €1.93 (Fairly Valued). The stock has 8 warning signs investors should review. Among 858 Vehicles & Parts companies, Piaggio & C. SpA ranks better than 67.83% on this metric.

As of today (2026-09-13), Piaggio & C. SpA's current share price is €1.915. Piaggio & C. SpA's E10 for the quarter that ended in Jun. 2026 was €0.16. Piaggio & C. SpA's Shiller PE Ratio for today is 11.97.

The historical rank and industry rank for Piaggio & C. SpA's Shiller PE Ratio or its related term are showing as below:

MIL:PIA' s Shiller PE Ratio Range Over the Past 10 Years
Min: 9.79   Med: 29.33   Max: 45.77
Current: 12.16

During the past years, Piaggio & C. SpA's highest Shiller PE Ratio was 45.77. The lowest was 9.79. And the median was 29.33.

MIL:PIA's Shiller PE Ratio is ranked better than
67.83% of 858 companies
in the Vehicles & Parts industry
Industry Median: 19.045 vs MIL:PIA: 12.16

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.

Piaggio & C. SpA's adjusted earnings per share data for the three months ended in Jun. 2026 was €0.071. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is €0.16 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Piaggio & C. SpA  (MIL:PIA) 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.


Piaggio & C. SpA Shiller PE Ratio Related Terms


Piaggio & C. SpA Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Piaggio & C. 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.

Piaggio & C. SpA Shiller PE Ratio Chart

Piaggio & C. 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 36.33 28.23 23.30 15.21 12.11

Piaggio & C. 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 12.66 13.20 12.11 9.95 10.20

MIL:PIA vs TSLA, GM, F: Shiller PE Ratio Comparison

For the Auto Manufacturers subindustry, Piaggio & C. 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.


Piaggio & C. SpA Shiller PE Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Piaggio & C. SpA's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Piaggio & C. SpA's Shiller PE Ratio falls into.


MIL:PIA
72GF Score
Piaggio & C. SpA MIL:PIA
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Piaggio & C. 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.

Piaggio & C. SpA's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=1.915/0.16
=11.97

* 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.

Piaggio & C. SpA's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, Piaggio & C. 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)
=0.071/126.4000*126.4000
=0.071

Current CPI (Jun. 2026) = 126.4000.

Piaggio & C. SpA Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 0.003 100.100 0.004
201612 -0.014 100.300 -0.018
201703 0.004 101.000 0.005
201706 0.055 101.100 0.069
201709 0.011 101.200 0.014
201712 -0.014 101.200 -0.017
201803 0.011 101.800 0.014
201806 0.063 102.400 0.078
201809 0.028 102.600 0.034
201812 -0.001 102.300 -0.001
201903 0.022 102.800 0.027
201906 0.075 103.100 0.092
201909 0.032 102.900 0.039
201912 0.002 102.800 0.002
202003 0.009 102.900 0.011
202006 0.016 102.900 0.020
202009 0.057 102.300 0.070
202012 0.006 102.600 0.007
202103 0.031 103.700 0.038
202106 0.091 104.200 0.110
202109 0.022 104.900 0.027
202112 0.024 106.600 0.028
202203 0.035 110.400 0.040
202206 0.092 112.500 0.103
202209 0.072 114.200 0.080
202212 0.040 119.000 0.042
202303 0.068 118.800 0.072
202306 0.115 119.700 0.121
202309 0.059 120.300 0.062
202312 0.015 119.700 0.016
202403 0.053 120.200 0.056
202406 0.094 120.700 0.098
202409 0.029 121.200 0.030
202412 0.014 121.200 0.015
202503 0.025 122.500 0.026
202506 0.060 122.700 0.062
202509 0.005 123.100 0.005
202512 0.006 122.600 0.006
202603 0.015 124.560 0.015
202606 0.071 126.400 0.071

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 11.97 mean?
Piaggio & C. SpA (MIL:PIA) has a Shiller PE Ratio of 11.97 as of Sep. 13, 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 Piaggio & C. SpA and its competitors. This is 59% below median its historical median of 29.33. Over the past decade, Piaggio & C. SpA's Shiller PE Ratio has ranged from 9.79 to 45.77. According to the industry distribution chart, Piaggio & C. SpA ranks #276 out of 858 companies in the Vehicles & Parts industry, placing it in the top 32.2%.
Is Piaggio & C. SpA's Shiller PE Ratio too high?
Piaggio & C. SpA's current Shiller PE Ratio of 11.97 is 59% below median its 10-year median of 29.33. Over the past 10 years, this metric has ranged from a low of 9.79 to a high of 45.77. The Vehicles & Parts industry median Shiller PE Ratio is 19.05. Piaggio & C. SpA's value of 11.97 is 37.1% below this industry median. Based on the distribution chart, Piaggio & C. SpA ranks #276 out of 858 companies in the Vehicles & Parts industry, which is above the industry midpoint. Overall, Piaggio & C. SpA has a GF Score™ of 72/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Piaggio & C. SpA's Shiller PE Ratio compare to TSLA and GM?
According to the Vehicles & Parts industry distribution chart, Piaggio & C. SpA ranks #276 out of 858 companies for Shiller PE Ratio. This puts Piaggio & C. SpA in the upper half of its industry. The industry median Shiller PE Ratio is 19.05. Piaggio & C. SpA's value of 11.97 is 37.1% below this benchmark. Historically, Piaggio & C. SpA's own Shiller PE Ratio has ranged from 9.79 to 45.77 over the past decade. While the company's 10-year median is 29.33 vs. the industry median of 19.05, Piaggio & C. SpA has consistently been below 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 Vehicles & Parts company?
The median Shiller PE Ratio among Vehicles & Parts companies is 19.05, based on 858 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. Piaggio & C. SpA's current Shiller PE Ratio of 11.97 is 37.1% below 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 Piaggio & C. SpA and its competitors. For the Vehicles & Parts industry, the median Shiller PE Ratio is 19.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Piaggio & C. SpA's current Shiller PE Ratio is 11.97, which is 59% below median its own 10-year median of 29.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Piaggio & C. SpA stock overvalued right now?
Based on GuruFocus' analysis, Piaggio & C. SpA (MIL:PIA) is currently considered Fairly Valued. The stock's GF Value™ is €1.93, compared to a current price of €1.92 — trading 0.8% below its estimated fair value. The current Shiller PE Ratio is 11.97, which is 59% below median its 10-year median of 29.33 and 37.1% below the Vehicles & Parts industry median of 19.05. Piaggio & C. SpA's overall GF Score™ is 72/100 with 8 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 Piaggio & C. SpA (MIL:PIA), the current Shiller PE Ratio is 11.97 as of Sep. 13, 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 Piaggio & C. SpA (MIL:PIA) Overvalued in 2026?

Based on GuruFocus' analysis, Piaggio & C. SpA stock appears to be undervalued. The current stock price of €1.92 is trading 0.8% below its estimated GF Value™ of €1.93. GuruFocus considers Piaggio & C. SpA to be Fairly Valued.

Key valuation signals for MIL:PIA:

  • Shiller PE Ratio: 11.97 (59% below median its 10-year median of 29.33)
  • GF Value™: €1.93 vs. price of €1.92 (0.8% below fair value)
  • GF Score™: 72/100 with 8 warning signs
  • Industry Position: 37.1% below the Vehicles & Parts median (#276 of 858)

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


Piaggio & C. SpA Business Description

Address Viale Rinaldo Piaggio, 25, Pontedera, Pisa, ITA, 56025
Piaggio & C. SpA is an Italian manufacturer of motor vehicles and also offers spare parts and related accessories. The group's product portfolio consists of scooters, mopeds, and motorcycles marketed under the Aprilia, Piaggio, Vespa, Moto Guzzi, Gilera, Derbi, and other brands, as well as three- and four-wheeler light vehicles, marketed under the Piaggio, Ape, and Porter brands. Maximum revenue is generated from the sale of its two-wheeler vehicles. Its geographical segments are EMEA and Americas, India, and Asia Pacific, with each segment having its production sites and a sales network dedicated to customers in that geographic segment. The group's key revenue is derived from the EMEA and Americas segment, which deals with the distribution and sale of two-wheeler and commercial vehicles.
72GF Score

Get the complete analysis for MIL:PIA

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

€1.92
Price
€1.93
GF Value