AMPX vs. AREC

Last updated Jun 5, 2026

AMPX (Amprius Technologies Inc.) and AREC (American Resources Corporation) are both stocks. AMPX operates in Electrical Equipment & Parts (Industrials), while AREC operates in Coking Coal (Basic Materials). Over the past 3 years, AMPX returned 39.80%/yr vs 12.76%/yr for AREC. At a 0.23 correlation, their price movements are largely independent.

Performance

AMPX vs. AREC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amprius Technologies Inc. (AMPX) and American Resources Corporation (AREC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AMPX achieves a 185.68% return, which is significantly higher than AREC's -4.03% return.

AMPX

• 1D: 3.68%
• 1M: 5.33%
• YTD: 185.68%
• 6M: 84.45%
• 1Y: 722.63%
• 3Y*: 39.80%
• 5Y*: —
• 10Y*: —

AREC

• 1D: -3.25%
• 1M: 3.48%
• YTD: -4.03%
• 6M: -24.92%
• 1Y: 244.93%
• 3Y*: 12.76%
• 5Y*: -6.33%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

AMPX vs. AREC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
AMPX Amprius Technologies Inc.	185.68%	181.79%	-47.07%	-33.29%	-20.70%
AREC American Resources Corporation	-4.03%	145.54%	-32.21%	12.88%	-54.64%

Correlation

The correlation between AMPX and AREC is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (3Y) Calculated over the trailing 3-year period	0.25
Correlation (All Time) Calculated using the full available price history since Sep 16, 2022	0.23

The correlation between AMPX and AREC shifts across timeframes, from 0.23 (all time) to 0.42 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

EPS AMPX : -$0.31 AREC : -$0.45
PS Ratio AMPX : 32.30 AREC : 1.37K
Total Revenue (TTM) AMPX : $90.26M AREC : $145.03K
Gross Profit (TTM) AMPX : $16.37M AREC : $140.16K
EBITDA (TTM) AMPX : -$17.72M AREC : -$22.47M

Return for Risk

AMPX vs. AREC — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

AMPX

AMPX Risk / Return Rank: 97
AMPX Sharpe Ratio Rank: 99
AMPX Sortino Ratio Rank: 95
AMPX Omega Ratio Rank: 92
AMPX Calmar Ratio Rank: 99
AMPX Martin Ratio Rank: 98

AREC

AREC Risk / Return Rank: 83
AREC Sharpe Ratio Rank: 86
AREC Sortino Ratio Rank: 85
AREC Omega Ratio Rank: 80
AREC Calmar Ratio Rank: 85
AREC Martin Ratio Rank: 77

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

AMPX vs. AREC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amprius Technologies Inc. (AMPX) and American Resources Corporation (AREC). 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.

	AMPX	AREC	Difference
Sharpe ratio: Return per unit of total volatility	6.73	1.80	+4.92
Sortino ratio: Return per unit of downside risk	4.07	2.73	+1.34
Omega ratio: Gain probability vs. loss probability	1.49	1.31	+0.18
Calmar ratio: Return relative to maximum drawdown	15.72	3.45	+12.27
Martin ratio: Return relative to average drawdown	38.65	5.29	+33.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AMPX vs. AREC - Sharpe Ratio Comparison

The current AMPX Sharpe Ratio is 6.73, which is higher than the AREC Sharpe Ratio of 1.80. The chart below compares the historical Sharpe Ratios of AMPX and AREC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	AMPX	AREC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	6.73	1.80	+4.92
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.06	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.19	0.08	+0.11

Drawdowns

AMPX vs. AREC - Drawdown Comparison

The maximum AMPX drawdown since its inception was -94.49%, roughly equal to the maximum AREC drawdown of -97.12%. Use the drawdown chart below to compare losses from any high point for AMPX and AREC.

Drawdown Indicators

	AMPX	AREC	Difference
Max Drawdown Largest peak-to-trough decline	-94.49%	-97.12%	+2.63%
Max Drawdown (1Y) Largest decline over 1 year	-46.41%	-71.51%	+25.10%
Max Drawdown (3Y) Largest decline over 3 years	-93.11%	-80.42%	-12.69%
Max Drawdown (5Y) Largest decline over 5 years	—	-88.07%	—
Current Drawdown Current decline from peak	-1.62%	-83.00%	+81.38%
Average Drawdown Average peak-to-trough decline	-55.21%	-79.73%	+24.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	18.84%	46.53%	-27.69%

Volatility

AMPX vs. AREC - Volatility Comparison

Amprius Technologies Inc. (AMPX) has a higher volatility of 44.87% compared to American Resources Corporation (AREC) at 30.29%. This indicates that AMPX's price experiences larger fluctuations and is considered to be riskier than AREC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AMPX	AREC	Difference
Volatility (1M) Calculated over the trailing 1-month period	44.87%	30.29%	+14.58%
Volatility (6M) Calculated over the trailing 6-month period	78.30%	73.18%	+5.12%
Volatility (1Y) Calculated over the trailing 1-year period	108.51%	136.98%	-28.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	128.77%	107.09%	+21.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	128.77%	738.46%	-609.69%

Dividends

AMPX vs. AREC - Dividend Comparison

Neither AMPX nor AREC has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both AMPX and AREC in my portfolio?

AMPX and AREC have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AMPX or AREC?

AMPX has higher volatility (44.87%) compared to AREC (30.29%). In terms of maximum drawdown, AMPX dropped -94.49% vs AREC's -97.12%.

Which has better risk-adjusted returns?

AMPX currently has the higher Sharpe Ratio (6.73 vs 1.80), 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.