Global Battery Companies Stock Analysis
Price Analysis, Returns, Indexing, and Value at Risk
ML, Cursor Ai
January 01, 2026
Global Battery Companies Stock Analysis
01 January 2026 - Written by ML with Cursor Ai support
Introduction
This report analyzes share prices for 13 global battery companies (8 Chinese companies listed in Hong Kong and 5 international companies) over the past 10 years. The analysis includes:
- Historical price data retrieval
- Return calculations
- Indexed price series (normalized to common start date)
- Visualizations (combined and faceted charts)
- Value at Risk (VaR) calculations for each battery company
- Performance comparison with the Hang Seng Index
Battery Company Ticker Reference
| Ticker | Company Name |
|---|---|
| 3750.HK | Contemporary Amperex Technology Co. Limited (CATL) |
| 3931.HK | China Aviation Lithium Battery Technology Co., Ltd. (CALB) |
| 0666.HK | REPT Battery Technology Co., Ltd. |
| 3677.HK | Jiangsu Azure Corporation Limited |
| 6960.HK | Shuangdeng Group Co., Ltd. |
| 2579.HK | CNGR Advanced Material Co., Ltd. |
| 3919.HK | Golden Power |
| 0040.HK | GoldPeak |
| 373220.KS | LG Energy Solution Ltd. |
| 006400.KS | Samsung SDI Co., Ltd. |
| 6752.T | Panasonic Corporation |
| 300014.SZ | EVE Energy Co., Ltd. |
| 002074.SZ | Gotion High-Tech Co., Ltd. |
Data Fetching
## Fetching data for 13 battery companies...## Chinese companies: 8## International companies: 5## Date range: 2016-01-01 to 2026-01-01## Fetching 3750.HK ... OK
## Fetching 3931.HK ... OK
## Fetching 0666.HK ... OK
## Fetching 3677.HK ...## OK
## Fetching 6960.HK ... OK
## Fetching 2579.HK ... OK
## Fetching 3919.HK ... OK
## Fetching 0040.HK ... OK
## Fetching 373220.KS ...## OK
## Fetching 006400.KS ...## OK
## Fetching 6752.T ... OK
## Fetching 300014.SZ ... OK
## Fetching 002074.SZ ... OK##
## Successfully fetched data for 13 out of 13 tickers.## Total observations: 17395## Date range: 2016-01-04 to 2025-12-31Data Summary:
| Ticker | Company Name | Start Date | End Date | Obs | First Price | Last Price |
|---|---|---|---|---|---|---|
| 002074.SZ | Gotion High-Tech Co., Ltd. | 2016-01-04 | 2025-12-31 | 2428 | 28.24 | 39.11 |
| 0040.HK | GoldPeak | 2016-01-04 | 2025-12-31 | 2462 | 0.65 | 0.77 |
| 006400.KS | Samsung SDI Co., Ltd. | 2016-01-04 | 2025-12-30 | 2447 | 108750.33 | 269500.00 |
| 0666.HK | REPT Battery Technology Co., Ltd. | 2023-12-18 | 2025-12-31 | 500 | 18.78 | 13.20 |
| 2579.HK | CNGR Advanced Material Co., Ltd. | 2025-11-17 | 2025-12-31 | 31 | 33.96 | 32.94 |
| 300014.SZ | EVE Energy Co., Ltd. | 2016-01-04 | 2025-12-31 | 2428 | 14.88 | 65.76 |
| 3677.HK | Jiangsu Azure Corporation Limited | 2025-04-14 | 2025-12-31 | 177 | 8.39 | 8.34 |
| 373220.KS | LG Energy Solution Ltd. | 2022-01-27 | 2025-12-30 | 957 | 505000.00 | 368500.00 |
| 3750.HK | Contemporary Amperex Technology Co. Limited (CATL) | 2025-05-20 | 2025-12-31 | 156 | 305.39 | 505.50 |
| 3919.HK | Golden Power | 2016-01-04 | 2025-12-31 | 2462 | 15.61 | 1.21 |
| 3931.HK | China Aviation Lithium Battery Technology Co., Ltd. (CALB) | 2022-10-06 | 2025-12-31 | 795 | 38.00 | 25.10 |
| 6752.T | Panasonic Corporation | 2016-01-04 | 2025-12-30 | 2465 | 948.86 | 2023.50 |
| 6960.HK | Shuangdeng Group Co., Ltd. | 2025-08-26 | 2025-12-31 | 87 | 19.05 | 15.41 |
Calculate Returns
## Calculated returns for 13 battery companies.## Total return observations: 17382Returns Summary:
| Ticker | Company Name | Mean | Std Dev | Min | Max |
|---|---|---|---|---|---|
| 002074.SZ | Gotion High-Tech Co., Ltd. | 0.013 | 2.971 | -10.626 | 9.913 |
| 0040.HK | GoldPeak | 0.007 | 2.171 | -17.979 | 16.430 |
| 006400.KS | Samsung SDI Co., Ltd. | 0.037 | 2.606 | -19.094 | 16.810 |
| 0666.HK | REPT Battery Technology Co., Ltd. | -0.071 | 3.552 | -16.680 | 34.323 |
| 2579.HK | CNGR Advanced Material Co., Ltd. | -0.102 | 3.971 | -6.899 | 9.213 |
| 300014.SZ | EVE Energy Co., Ltd. | 0.061 | 3.769 | -72.012 | 18.239 |
| 3677.HK | Jiangsu Azure Corporation Limited | -0.003 | 2.643 | -9.633 | 10.828 |
| 373220.KS | LG Energy Solution Ltd. | -0.033 | 2.742 | -12.880 | 20.507 |
| 3750.HK | Contemporary Amperex Technology Co. Limited (CATL) | 0.325 | 2.592 | -7.972 | 9.703 |
| 3919.HK | Golden Power | -0.104 | 4.780 | -55.257 | 32.405 |
| 3931.HK | China Aviation Lithium Battery Technology Co., Ltd. (CALB) | -0.052 | 4.026 | -42.429 | 19.907 |
| 6752.T | Panasonic Corporation | 0.031 | 2.014 | -14.266 | 12.808 |
| 6960.HK | Shuangdeng Group Co., Ltd. | -0.247 | 4.526 | -10.765 | 13.668 |
Index to Common Start Date
## Common start date: 2025-11-17## Indexed prices to common start date.## Total indexed observations: 407## Number of battery companies: 13Indexed Prices Preview:
| Ticker | Date | Price | Index |
|---|---|---|---|
| 002074.SZ | 2025-11-17 | 43.00 | 100.00 |
| 002074.SZ | 2025-11-18 | 42.02 | 97.72 |
| 002074.SZ | 2025-11-19 | 40.90 | 95.12 |
| 002074.SZ | 2025-11-20 | 39.59 | 92.07 |
| 002074.SZ | 2025-11-21 | 37.77 | 87.84 |
| 0040.HK | 2025-11-17 | 0.70 | 100.00 |
| 0040.HK | 2025-11-18 | 0.72 | 102.78 |
| 0040.HK | 2025-11-19 | 0.74 | 105.56 |
| 0040.HK | 2025-11-20 | 0.74 | 105.56 |
| 0040.HK | 2025-11-21 | 0.74 | 105.56 |
| 006400.KS | 2025-11-17 | 317000.00 | 100.00 |
| 006400.KS | 2025-11-18 | 301500.00 | 95.11 |
| 006400.KS | 2025-11-19 | 296500.00 | 93.53 |
| 006400.KS | 2025-11-20 | 302000.00 | 95.27 |
| 006400.KS | 2025-11-21 | 288500.00 | 91.01 |
| 0666.HK | 2025-11-17 | 16.40 | 100.00 |
| 0666.HK | 2025-11-18 | 15.25 | 92.99 |
| 0666.HK | 2025-11-19 | 15.11 | 92.13 |
| 0666.HK | 2025-11-20 | 14.59 | 88.96 |
| 0666.HK | 2025-11-21 | 14.20 | 86.59 |
| 2579.HK | 2025-11-17 | 33.96 | 100.00 |
| 2579.HK | 2025-11-18 | 32.40 | 95.41 |
| 2579.HK | 2025-11-19 | 30.24 | 89.05 |
| 2579.HK | 2025-11-20 | 30.30 | 89.22 |
| 2579.HK | 2025-11-21 | 28.56 | 84.10 |
| 300014.SZ | 2025-11-17 | 83.45 | 100.00 |
| 300014.SZ | 2025-11-18 | 78.60 | 94.19 |
| 300014.SZ | 2025-11-19 | 79.00 | 94.67 |
| 300014.SZ | 2025-11-20 | 76.30 | 91.43 |
| 300014.SZ | 2025-11-21 | 71.74 | 85.97 |
| 3677.HK | 2025-11-17 | 9.38 | 100.00 |
| 3677.HK | 2025-11-18 | 9.16 | 97.65 |
| 3677.HK | 2025-11-19 | 9.15 | 97.55 |
| 3677.HK | 2025-11-20 | 9.05 | 96.48 |
| 3677.HK | 2025-11-21 | 9.00 | 95.95 |
| 373220.KS | 2025-11-17 | 463000.00 | 100.00 |
| 373220.KS | 2025-11-18 | 443000.00 | 95.68 |
| 373220.KS | 2025-11-19 | 437500.00 | 94.49 |
| 373220.KS | 2025-11-20 | 441000.00 | 95.25 |
| 373220.KS | 2025-11-21 | 425500.00 | 91.90 |
| 3750.HK | 2025-11-17 | 526.00 | 100.00 |
| 3750.HK | 2025-11-18 | 504.00 | 95.82 |
| 3750.HK | 2025-11-19 | 512.00 | 97.34 |
| 3750.HK | 2025-11-20 | 483.00 | 91.83 |
| 3750.HK | 2025-11-21 | 465.00 | 88.40 |
| 3919.HK | 2025-11-17 | 1.66 | 100.00 |
| 3919.HK | 2025-11-18 | 1.45 | 87.35 |
| 3919.HK | 2025-11-19 | 1.44 | 86.75 |
| 3919.HK | 2025-11-20 | 1.44 | 86.75 |
| 3919.HK | 2025-11-21 | 1.44 | 86.75 |
| 3931.HK | 2025-11-17 | 33.32 | 100.00 |
| 3931.HK | 2025-11-18 | 30.56 | 91.72 |
| 3931.HK | 2025-11-19 | 30.14 | 90.46 |
| 3931.HK | 2025-11-20 | 29.22 | 87.70 |
| 3931.HK | 2025-11-21 | 28.00 | 84.03 |
| 6752.T | 2025-11-17 | 1786.00 | 100.00 |
| 6752.T | 2025-11-18 | 1745.00 | 97.70 |
| 6752.T | 2025-11-19 | 1700.00 | 95.18 |
| 6752.T | 2025-11-20 | 1755.00 | 98.26 |
| 6752.T | 2025-11-21 | 1737.50 | 97.28 |
| 6960.HK | 2025-11-17 | 18.74 | 100.00 |
| 6960.HK | 2025-11-18 | 18.28 | 97.55 |
| 6960.HK | 2025-11-19 | 17.82 | 95.09 |
| 6960.HK | 2025-11-20 | 18.00 | 96.05 |
| 6960.HK | 2025-11-21 | 16.83 | 89.81 |
Performance Analysis
Fetch Hang Seng Index Data
## Fetching Hang Seng Index data from 2024-12-01 to 2026-01-01 ...## ✓ Successfully fetched Hang Seng Index data
## Date range: 2024-12-02 to 2025-12-31
## Total observations: 266
## ✓ YTD start date (2025-01-01) data available
## Actual date used: 2024-12-31
## Price on that date: 20059.95Calculate Performance Metrics
## Reference dates:## Latest (most recent trading day): 2025-12-31## 1 month ago: 2025-12-01## 3 months ago: 2025-10-02## YTD start: 2025-01-01## Hang Seng Index prices (using nearest available trading day):## Latest: 25630.54 on 2025-12-31 (target: 2025-12-31 )## 1M: 26033.26 on 2025-12-01 (target: 2025-12-01 )## 3M: 27287.12 on 2025-10-02 (target: 2025-10-02 )## YTD: 20059.95 on 2024-12-31 (target: 2025-01-01 )## Sample stock: 3750.HK
## Latest price: 505.5 on 2025-12-31
## 1M price: 483 on or before 2025-12-01
## 3M price: 605.5 on or before 2025-10-02
## YTD price: NA on or before 2025-01-01
## Available date range: 2025-05-20 to 2025-12-31## Performance data calculated for 14 stocks plus Hang Seng IndexAbsolute Performance Table
| Ticker | Company Name | Latest Price | 1 Month Ago | 3 Months Ago | YTD Start | 1M Change (%) | 3M Change (%) | YTD Change (%) |
|---|---|---|---|---|---|---|---|---|
| 3931.HK | China Aviation Lithium Battery Technology Co., Ltd. (CALB) | 25.10 | 28.20 | 36.10 | 12.86 | -10.99 | -30.47 | 95.18 |
| 002074.SZ | Gotion High-Tech Co., Ltd. | 39.11 | 39.28 | 46.68 | 21.15 | -0.43 | -16.22 | 84.90 |
| 0040.HK | GoldPeak | 0.77 | 0.75 | 0.66 | 0.48 | 2.46 | 16.02 | 60.11 |
| 300014.SZ | EVE Energy Co., Ltd. | 65.76 | 72.38 | 91.00 | 46.07 | -9.15 | -27.74 | 42.74 |
| ^HSI | Hang Seng Index | 25630.54 | 26033.26 | 27287.12 | 20059.95 | -1.55 | -6.07 | 27.77 |
| 6752.T | Panasonic Corporation | 2023.50 | 1896.50 | 1585.00 | 1598.54 | 6.70 | 27.67 | 26.58 |
| 0666.HK | REPT Battery Technology Co., Ltd. | 13.20 | 13.60 | 16.00 | 11.28 | -2.94 | -17.50 | 17.02 |
| 006400.KS | Samsung SDI Co., Ltd. | 269500.00 | 299000.00 | 206500.00 | 247500.00 | -9.87 | 30.51 | 8.89 |
| 3919.HK | Golden Power | 1.21 | 1.24 | 1.20 | 1.14 | -2.42 | 0.83 | 6.14 |
| 373220.KS | LG Energy Solution Ltd. | 368500.00 | 413000.00 | 399000.00 | 348000.00 | -10.77 | -7.64 | 5.89 |
| 3750.HK | Contemporary Amperex Technology Co. Limited (CATL) | 505.50 | 483.00 | 605.50 | NA | 4.66 | -16.52 | NA |
| 3677.HK | Jiangsu Azure Corporation Limited | 8.34 | 9.00 | 12.03 | NA | -7.33 | -30.67 | NA |
| 6960.HK | Shuangdeng Group Co., Ltd. | 15.41 | 16.90 | 19.99 | NA | -8.82 | -22.91 | NA |
| 2579.HK | CNGR Advanced Material Co., Ltd. | 32.94 | 28.88 | NA | NA | 14.06 | NA | NA |
Relative Performance Table
| Ticker | Company Name | 1M vs HSI (%) | 3M vs HSI (%) | YTD vs HSI (%) |
|---|---|---|---|---|
| 3931.HK | China Aviation Lithium Battery Technology Co., Ltd. (CALB) | -9.45 | -24.40 | 67.41 |
| 002074.SZ | Gotion High-Tech Co., Ltd. | 1.11 | -10.15 | 57.13 |
| 0040.HK | GoldPeak | 4.01 | 22.09 | 32.34 |
| 300014.SZ | EVE Energy Co., Ltd. | -7.60 | -21.67 | 14.97 |
| 6752.T | Panasonic Corporation | 8.24 | 33.74 | -1.19 |
| 0666.HK | REPT Battery Technology Co., Ltd. | -1.39 | -11.43 | -10.75 |
| 006400.KS | Samsung SDI Co., Ltd. | -8.32 | 36.58 | -18.88 |
| 3919.HK | Golden Power | -0.87 | 6.90 | -21.63 |
| 373220.KS | LG Energy Solution Ltd. | -9.23 | -1.57 | -21.88 |
| 3750.HK | Contemporary Amperex Technology Co. Limited (CATL) | 6.21 | -10.44 | NA |
| 3677.HK | Jiangsu Azure Corporation Limited | -5.79 | -24.60 | NA |
| 6960.HK | Shuangdeng Group Co., Ltd. | -7.27 | -16.84 | NA |
| 2579.HK | CNGR Advanced Material Co., Ltd. | 15.61 | NA | NA |
Interpretation: - Absolute Performance: Shows the actual price changes for each stock and the Hang Seng Index - Relative Performance: Shows how each stock performed relative to the Hang Seng Index - Positive values indicate the stock outperformed the index - Negative values indicate the stock underperformed the index
Visualization: All Battery Companies on One Chart
Visualization: Faceted Charts
Value at Risk (VaR) Calculation
Following the methodology from the VaR teaching guide, we calculate 1-year historical VaR at 95% confidence level for each battery company.
VaR Calculation Function
Calculate VaR for All Battery Companies
## Calculating VaR for all battery companies...## Processing 3750.HK ... FAILED
## Processing 3931.HK ... VaR = 58.19 %
## Processing 0666.HK ... VaR = 54.25 %
## Processing 3677.HK ... FAILED
## Processing 6960.HK ... FAILED
## Processing 2579.HK ... FAILED
## Processing 3919.HK ... VaR = 94.03 %
## Processing 0040.HK ... VaR = 25.13 %
## Processing 373220.KS ... VaR = 49.31 %
## Processing 006400.KS ... VaR = 67.99 %
## Processing 6752.T ... VaR = 43.85 %
## Processing 300014.SZ ... VaR = 76.29 %
## Processing 002074.SZ ... VaR = 67.91 %##
## VaR calculation complete for 9 battery companies.VaR Results Table
| Ticker | Company Name | VaR (%) | CI Lower (%) | CI Upper (%) | Obs | Start Date | End Date |
|---|---|---|---|---|---|---|---|
| 3919.HK | Golden Power | 94.03 | 90.79 | 96.42 | 2210 | 2016-01-04 | 2025-12-31 |
| 300014.SZ | EVE Energy Co., Ltd. | 76.29 | 73.86 | 77.82 | 2176 | 2016-01-04 | 2025-12-31 |
| 006400.KS | Samsung SDI Co., Ltd. | 67.99 | 64.95 | 71.57 | 2195 | 2016-01-04 | 2025-12-30 |
| 002074.SZ | Gotion High-Tech Co., Ltd. | 67.91 | 65.58 | 70.25 | 2176 | 2016-01-04 | 2025-12-31 |
| 3931.HK | China Aviation Lithium Battery Technology Co., Ltd. (CALB) | 58.19 | 51.24 | 64.56 | 543 | 2022-10-06 | 2025-12-31 |
| 0666.HK | REPT Battery Technology Co., Ltd. | 54.25 | 49.07 | 58.63 | 248 | 2023-12-18 | 2025-12-31 |
| 373220.KS | LG Energy Solution Ltd. | 49.31 | 47.37 | 51.81 | 705 | 2022-01-27 | 2025-12-30 |
| 6752.T | Panasonic Corporation | 43.85 | 42.48 | 46.27 | 2213 | 2016-01-04 | 2025-12-30 |
| 0040.HK | GoldPeak | 25.13 | 23.11 | 27.12 | 2210 | 2016-01-04 | 2025-12-31 |
VaR Visualization
Detailed VaR Analysis Charts
For each battery company, we provide comprehensive four-panel charts showing price, rolling annual returns, daily returns, and return distribution.
Summary
Key Findings
Data Coverage: - Successfully retrieved data for 13 out of 13 battery companies - Chinese companies: 8 out of 8 - International companies: 5 out of 5 - Analysis period: 10 years (from 2025-11-17 to 2025-12-31)
Risk Analysis: - VaR calculated at 95% confidence level (1-year historical VaR) - Highest VaR: 94.03% (3919.HK) - Lowest VaR: 25.13% (0040.HK) - Average VaR: 59.66%
Interpretation: - VaR represents the maximum expected loss at the specified confidence level - For example, a VaR of 30% means that in the worst 5% of 1-year periods, losses were 30% or worse - Higher VaR indicates higher risk (more volatile returns)
Methodology
- Data Retrieval: Historical adjusted closing prices from Yahoo Finance
- Returns Calculation: Log returns (log price differences)
- Indexing: Normalized to 100 at common start date for comparison
- VaR Calculation:
- Rolling 252-trading-day (1-year) returns
- 5th percentile of annual return distribution
- Bootstrap confidence intervals (1000 iterations)
Analysis generated on 2026-01-01 using R version R version 4.5.1 (2025-06-13)