AMPX vs. USAR
AMPX (Amprius Technologies Inc.) and USAR (USA Rare Earth, Inc) are both stocks. AMPX operates in Electrical Equipment & Parts (Industrials), while USAR operates in Other Industrial Metals & Mining (Basic Materials). Over the past year, AMPX returned 313.96% vs 51.34% for USAR. At a 0.39 correlation, their price movements are largely independent.
Performance
AMPX vs. USAR - Performance Comparison
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Returns By Period
In the year-to-date period, AMPX achieves a 106.72% return, which is significantly higher than USAR's 84.79% return.
AMPX
- 1D
- -4.62%
- 1M
- -6.91%
- YTD
- 106.72%
- 6M
- 49.50%
- 1Y
- 313.96%
- 3Y*
- 16.37%
- 5Y*
- —
- 10Y*
- —
USAR
- 1D
- -2.53%
- 1M
- -13.49%
- YTD
- 84.79%
- 6M
- 29.05%
- 1Y
- 51.34%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AMPX vs. USAR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
AMPX Amprius Technologies Inc. | 106.72% | 340.78% |
USAR USA Rare Earth, Inc | 84.79% | 16.32% |
Correlation
The correlation between AMPX and USAR is 0.51, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.51 |
Correlation (All Time) Calculated using the full available price history since Mar 14, 2025 | 0.39 |
The correlation between AMPX and USAR shifts across timeframes, from 0.39 (all time) to 0.51 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
AMPX:
-$0.31
USAR:
-$4.85
AMPX:
23.37
USAR:
5.90
AMPX:
$90.26M
USAR:
$319.83M
AMPX:
$16.37M
USAR:
$253.66M
AMPX:
-$17.72M
USAR:
-$324.99M
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Return for Risk
AMPX vs. USAR — Risk / Return Rank
AMPX
USAR
AMPX vs. USAR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Amprius Technologies Inc. (AMPX) and USA Rare Earth, Inc (USAR). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| AMPX | USAR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.51 | ||
| Sortino ratioReturn per unit of downside risk | +1.38 | ||
| Omega ratioGain probability vs. loss probability | 1.34 | 1.17 | +0.18 |
| Calmar ratioReturn relative to maximum drawdown | 6.82 | 0.75 | +6.07 |
| Martin ratioReturn relative to average drawdown | 16.45 | 1.22 | +15.23 |
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Drawdowns
AMPX vs. USAR - Drawdown Comparison
The maximum AMPX drawdown since its inception was -94.49%, which is greater than USAR's maximum drawdown of -69.23%. Use the drawdown chart below to compare losses from any high point for AMPX and USAR.
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Drawdown Indicators
| AMPX | USAR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -94.49% | -69.23% | -25.26% |
Max Drawdown (1Y)Largest decline over 1 year | -46.41% | -69.23% | +22.82% |
Max Drawdown (3Y)Largest decline over 3 years | -92.44% | — | — |
Current DrawdownCurrent decline from peak | -28.81% | -43.15% | +14.34% |
Average DrawdownAverage peak-to-trough decline | -54.95% | -40.87% | -14.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 19.19% | 42.21% | -23.02% |
Volatility
AMPX vs. USAR - Volatility Comparison
The current volatility for Amprius Technologies Inc. (AMPX) is 33.62%, while USA Rare Earth, Inc (USAR) has a volatility of 35.87%. This indicates that AMPX experiences smaller price fluctuations and is considered to be less risky than USAR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMPX | USAR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 33.62% | 35.87% | -2.25% |
Volatility (6M)Calculated over the trailing 6-month period | 79.90% | 80.93% | -1.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 109.24% | 123.13% | -13.89% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 128.75% | 158.43% | -29.68% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 128.75% | 158.43% | -29.68% |
Dividends
AMPX vs. USAR - Dividend Comparison
Neither AMPX nor USAR has paid dividends to shareholders.
Financials
AMPX vs. USAR - Financials Comparison
This section allows you to compare key financial metrics between Amprius Technologies Inc. and USA Rare Earth, Inc. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
Frequently Asked Questions
AMPX and USAR have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
USAR has higher volatility (35.87%) compared to AMPX (33.62%). In terms of maximum drawdown, AMPX dropped -94.49% vs USAR's -69.23%.
AMPX currently has the higher Sharpe Ratio (2.93 vs 0.42), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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