USAR vs. AMPX
USAR (USA Rare Earth, Inc) and AMPX (Amprius Technologies Inc.) are both stocks. USAR operates in Other Industrial Metals & Mining (Basic Materials), while AMPX operates in Electrical Equipment & Parts (Industrials). Over the past year, USAR returned 51.34% vs 313.96% for AMPX. At a 0.39 correlation, their price movements are largely independent.
Performance
USAR vs. AMPX - Performance Comparison
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Returns By Period
In the year-to-date period, USAR achieves a 84.79% return, which is significantly lower than AMPX's 106.72% return.
USAR
- 1D
- -2.53%
- 1M
- -13.49%
- YTD
- 84.79%
- 6M
- 29.05%
- 1Y
- 51.34%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AMPX
- 1D
- -4.62%
- 1M
- -6.91%
- YTD
- 106.72%
- 6M
- 49.50%
- 1Y
- 313.96%
- 3Y*
- 16.37%
- 5Y*
- —
- 10Y*
- —
USAR vs. AMPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
USAR USA Rare Earth, Inc | 84.79% | 16.32% |
AMPX Amprius Technologies Inc. | 106.72% | 340.78% |
Correlation
The correlation between USAR and AMPX 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 USAR and AMPX shifts across timeframes, from 0.39 (all time) to 0.51 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
USAR:
-$4.85
AMPX:
-$0.31
USAR:
5.90
AMPX:
23.37
USAR:
$319.83M
AMPX:
$90.26M
USAR:
$253.66M
AMPX:
$16.37M
USAR:
-$324.99M
AMPX:
-$17.72M
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Return for Risk
USAR vs. AMPX — Risk / Return Rank
USAR
AMPX
USAR vs. AMPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for USA Rare Earth, Inc (USAR) and Amprius Technologies Inc. (AMPX). 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.
| USAR | AMPX | 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 | 1.17 | 1.34 | -0.18 |
| Calmar ratioReturn relative to maximum drawdown | 0.75 | 6.82 | -6.07 |
| Martin ratioReturn relative to average drawdown | 1.22 | 16.45 | -15.23 |
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Drawdowns
USAR vs. AMPX - Drawdown Comparison
The maximum USAR drawdown since its inception was -69.23%, smaller than the maximum AMPX drawdown of -94.49%. Use the drawdown chart below to compare losses from any high point for USAR and AMPX.
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Drawdown Indicators
| USAR | AMPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -69.23% | -94.49% | +25.26% |
Max Drawdown (1Y)Largest decline over 1 year | -69.23% | -46.41% | -22.82% |
Max Drawdown (3Y)Largest decline over 3 years | — | -92.44% | — |
Current DrawdownCurrent decline from peak | -43.15% | -28.81% | -14.34% |
Average DrawdownAverage peak-to-trough decline | -40.87% | -54.95% | +14.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 42.21% | 19.19% | +23.02% |
Volatility
USAR vs. AMPX - Volatility Comparison
USA Rare Earth, Inc (USAR) has a higher volatility of 35.87% compared to Amprius Technologies Inc. (AMPX) at 33.62%. This indicates that USAR's price experiences larger fluctuations and is considered to be riskier than AMPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| USAR | AMPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 35.87% | 33.62% | +2.25% |
Volatility (6M)Calculated over the trailing 6-month period | 80.93% | 79.90% | +1.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 123.13% | 109.24% | +13.89% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 158.43% | 128.75% | +29.68% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 158.43% | 128.75% | +29.68% |
Dividends
USAR vs. AMPX - Dividend Comparison
Neither USAR nor AMPX has paid dividends to shareholders.
Financials
USAR vs. AMPX - Financials Comparison
This section allows you to compare key financial metrics between USA Rare Earth, Inc and Amprius Technologies 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
USAR and AMPX 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, USAR dropped -69.23% vs AMPX's -94.49%.
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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