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BYD Co Ltd BYDDF
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:
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.
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.
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.
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.
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 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 |
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86.89 | 73.97 | 69.66 | 58.63 | 61.57 | ||
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.
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.
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.
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:
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.