BYDDF (BYD Co) Shiller PE Ratio: 50.97 (As of Aug. 13, 2026) — 38% 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.

BYDDF BYD Co Ltd BYDDF
94 GF Score
Price $11.21
GF Value $13.69
Valuation Modestly Undervalued
! 6 Warning Signs
View Full Analysis

What is BYD Co Shiller PE Ratio?

BYD Co BYDDF -1.37% 94 Shiller PE Ratio is 50.97 as of Aug. 13, 2026, which is 38% below its 10-year median of 82.29. GuruFocus rates BYDDF with a GF Score™ of 94/100 and a GF Value™ of $13.69 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 855 Vehicles & Parts companies, BYD Co ranks worse than 84.91% on this metric.

As of today (2026-08-13), BYD Co's current share price is $11.214. BYD Co's E10 for the quarter that ended in Mar. 2026 was $0.22. BYD Co's Shiller PE Ratio for today is 50.97.

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

BYDDF' s Shiller PE Ratio Range Over the Past 10 Years
Min: 39.93   Med: 82.29   Max: 344.17
Current: 50.97

During the past years, BYD Co's highest Shiller PE Ratio was 344.17. The lowest was 39.93. And the median was 82.29.

BYDDF's Shiller PE Ratio is ranked worse than
84.91% of 855 companies
in the Vehicles & Parts industry
Industry Median: 19.47 vs BYDDF: 50.97

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.

BYD Co's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.065. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.22 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


BYD Co  (OTCPK:BYDDF) 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.


BYD Co Shiller PE Ratio Related Terms


BYD Co Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for BYD Co'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.

BYD Co Shiller PE Ratio Chart

BYD Co 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 269.66 163.31 76.45 70.77 58.63

BYD Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 86.89 73.97 69.66 58.63 61.57

BYDDF vs TSLA, GM, F: Shiller PE Ratio Comparison

For the Auto Manufacturers subindustry, BYD Co'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.


BYD Co Shiller PE Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, BYD Co's Shiller PE Ratio distribution charts can be found below:

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


BYDDF
94GF Score
BYD Co Ltd BYDDF
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

BYD Co 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.

BYD Co's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=11.214/0.22
=50.97

* 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.

BYD Co's E10 for the quarter that ended in Mar. 2026 is calculated as:

For example, BYD Co'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)
=0.065/121.4731*121.4731
=0.065

Current CPI (Mar. 2026) = 121.4731.

BYD Co Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201606 0.028 101.686 0.033
201609 0.026 102.565 0.031
201612 0.024 103.225 0.028
201703 0.010 103.335 0.012
201706 0.019 103.664 0.022
201709 0.019 103.994 0.022
201712 0.022 104.984 0.025
201803 0.001 105.973 0.001
201806 0.007 106.193 0.008
201809 0.018 106.852 0.020
201812 0.021 107.622 0.024
201903 0.012 108.172 0.013
201906 0.012 109.601 0.013
201909 0.001 110.260 0.001
201912 0.000 110.700 0.000
202003 0.001 110.920 0.001
202006 0.027 110.590 0.030
202009 0.030 107.512 0.034
202012 0.015 109.711 0.017
202103 0.004 111.579 0.004
202106 0.017 111.360 0.019
202109 0.023 109.051 0.026
202112 0.011 112.349 0.012
202203 0.015 113.558 0.016
202206 0.048 113.448 0.051
202209 0.093 113.778 0.099
202212 0.120 114.548 0.127
202303 0.069 115.427 0.073
202306 0.109 115.647 0.114
202309 0.164 116.087 0.172
202312 0.139 117.296 0.144
202403 0.073 117.735 0.075
202406 0.143 117.296 0.148
202409 0.188 118.615 0.193
202412 0.236 118.945 0.241
202503 0.143 119.384 0.146
202506 0.093 119.055 0.095
202509 0.119 119.934 0.121
202512 0.145 120.704 0.146
202603 0.065 121.473 0.065

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 50.97 mean?
BYD Co (BYDDF) has a Shiller PE Ratio of 50.97 as of Aug. 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 BYD Co and its competitors. This is 38% below median its historical median of 82.29. Over the past decade, BYD Co's Shiller PE Ratio has ranged from 39.93 to 344.17. According to the industry distribution chart, BYD Co ranks #726 out of 855 companies in the Vehicles & Parts industry, placing it in the top 84.9%.
Is BYD Co's Shiller PE Ratio too high?
BYD Co's current Shiller PE Ratio of 50.97 is 38% below median its 10-year median of 82.29. Over the past 10 years, this metric has ranged from a low of 39.93 to a high of 344.17. The Vehicles & Parts industry median Shiller PE Ratio is 19.47. BYD Co's value of 50.97 is 161.8% above this industry median. Based on the distribution chart, BYD Co ranks #726 out of 855 companies in the Vehicles & Parts industry, which is in the bottom quartile relative to peers. Overall, BYD Co has a GF Score™ of 94/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does BYD Co's Shiller PE Ratio compare to TSLA and GM?
According to the Vehicles & Parts industry distribution chart, BYD Co ranks #726 out of 855 companies for Shiller PE Ratio. This places BYD Co in the lower half of its industry. The industry median Shiller PE Ratio is 19.47. BYD Co's value of 50.97 is 161.8% above this benchmark. Historically, BYD Co's own Shiller PE Ratio has ranged from 39.93 to 344.17 over the past decade. While the company's 10-year median is 82.29 vs. the industry median of 19.47, BYD Co 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 Vehicles & Parts company?
The median Shiller PE Ratio among Vehicles & Parts companies is 19.47, based on 855 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. BYD Co's current Shiller PE Ratio of 50.97 is 161.8% 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 BYD Co and its competitors. For the Vehicles & Parts industry, the median Shiller PE Ratio is 19.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. BYD Co's current Shiller PE Ratio is 50.97, which is 38% below median its own 10-year median of 82.29. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BYD Co stock overvalued right now?
Based on GuruFocus' analysis, BYD Co (BYDDF) is currently considered Modestly Undervalued. The stock's GF Value™ is $13.69, compared to a current price of $11.21 — trading 18.1% below its estimated fair value. The current Shiller PE Ratio is 50.97, which is 38% below median its 10-year median of 82.29 and 161.8% above the Vehicles & Parts industry median of 19.47. BYD Co's overall GF Score™ is 94/100 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 BYD Co (BYDDF), the current Shiller PE Ratio is 50.97 as of Aug. 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 BYD Co (BYDDF) Overvalued in 2026?

Based on GuruFocus' analysis, BYD Co stock appears to be undervalued. The current stock price of $11.21 is trading 18.1% below its estimated GF Value™ of $13.69. GuruFocus considers BYD Co to be Modestly Undervalued.

Key valuation signals for BYDDF:

  • Shiller PE Ratio: 50.97 (38% below median its 10-year median of 82.29)
  • GF Value™: $13.69 vs. price of $11.21 (18.1% below fair value)
  • GF Score™: 94/100 with 6 warning signs
  • Industry Position: 161.8% above the Vehicles & Parts median (#726 of 855)

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


BYD Co Business Description

Address Unit 505-510, 1 Science Park E Avenue, 5th Floor, Core Building 1E, Pak Shek Kok, Tai Po, HKG
Founded in 1995, BYD is a leading Chinese manufacturer in the design, development, and production of new energy vehicles, or NEVs. In March 2022, the firm discontinued production of internal combustion engine, or ICE, vehicles. Its products primarily target the growing midpriced mass-market segment in China's passenger vehicle market. The company sold about 4.6 million passenger NEVs in 2025, accounting for 30% of the Chinese passenger NEV market. Besides automobile production, the company is also engaged in handset components and assembly services, as well as the rechargeable battery and photovoltaics business. After more than 25 years of development, the company has established over 30 industrial parks worldwide.
94GF Score

Get the complete analysis for BYDDF

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

$11.21
Price
$13.69
GF Value