MP vs. ARRNF

Last updated Jun 9, 2026

MP (MP Materials Corp.) and ARRNF (American Rare Earths Limited) are both stocks. Both operate in the Other Industrial Metals & Mining industry within the Basic Materials sector. Over the past 5 years, MP returned 11.32%/yr vs 70.00%/yr for ARRNF. At a 0.14 correlation, their price movements are largely independent.

Performance

MP vs. ARRNF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MP Materials Corp. (MP) and American Rare Earths Limited (ARRNF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MP achieves a 13.97% return, which is significantly lower than ARRNF's 35.21% return.

MP

• 1D: -2.70%
• 1M: -14.61%
• YTD: 13.97%
• 6M: -5.92%
• 1Y: 124.05%
• 3Y*: 38.10%
• 5Y*: 11.32%
• 10Y*: —

ARRNF

• 1D: 1.45%
• 1M: 1.41%
• YTD: 35.21%
• 6M: 8.17%
• 1Y: 60.51%
• 3Y*: 37.22%
• 5Y*: 70.00%
• 10Y*: —

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

MP vs. ARRNF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
MP MP Materials Corp.	13.97%	223.85%	-21.41%	-18.25%	-46.54%	41.19%	116.20%
ARRNF American Rare Earths Limited	35.21%	23.89%	41.25%	-11.60%	4.42%	550.00%	-20.00%

Correlation

The correlation between MP and ARRNF is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (3Y) Calculated over the trailing 3-year period	0.19
Correlation (5Y) Calculated over the trailing 5-year period	0.15
Correlation (All Time) Calculated using the full available price history since Jul 23, 2020	0.14

Over the past year, MP and ARRNF have become more correlated (0.39) than their long-term average of 0.14, meaning their price movements have been converging.

Fundamentals

EPS MP : -$0.53 ARRNF : -$0.02
Total Revenue (TTM) MP : $305.30M ARRNF : -$128.85K
Gross Profit (TTM) MP : $25.30M ARRNF : -$385.87K
EBITDA (TTM) MP : $1.52M ARRNF : -$12.72M

Return for Risk

MP vs. ARRNF — Risk / Return Rank

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

MP

MP Risk / Return Rank: 78
MP Sharpe Ratio Rank: 79
MP Sortino Ratio Rank: 83
MP Omega Ratio Rank: 78
MP Calmar Ratio Rank: 78
MP Martin Ratio Rank: 72

ARRNF

ARRNF Risk / Return Rank: 65
ARRNF Sharpe Ratio Rank: 59
ARRNF Sortino Ratio Rank: 75
ARRNF Omega Ratio Rank: 73
ARRNF Calmar Ratio Rank: 61
ARRNF Martin Ratio Rank: 55

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.

MP vs. ARRNF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MP Materials Corp. (MP) and American Rare Earths Limited (ARRNF). 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.

	MP	ARRNF	Difference
Sharpe ratio: Return per unit of total volatility	1.33	0.48	+0.85
Sortino ratio: Return per unit of downside risk	2.43	1.95	+0.48
Omega ratio: Gain probability vs. loss probability	1.27	1.24	+0.03
Calmar ratio: Return relative to maximum drawdown	2.32	0.88	+1.44
Martin ratio: Return relative to average drawdown	3.93	1.23	+2.70
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MP vs. ARRNF - Sharpe Ratio Comparison

The current MP Sharpe Ratio is 1.33, which is higher than the ARRNF Sharpe Ratio of 0.48. The chart below compares the historical Sharpe Ratios of MP and ARRNF, 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

	MP	ARRNF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.33	0.48	+0.85
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.16	0.22	-0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.18	+0.29

Drawdowns

MP vs. ARRNF - Drawdown Comparison

The maximum MP drawdown since its inception was -81.99%, roughly equal to the maximum ARRNF drawdown of -83.01%. Use the drawdown chart below to compare losses from any high point for MP and ARRNF.

Drawdown Indicators

	MP	ARRNF	Difference
Max Drawdown Largest peak-to-trough decline	-81.99%	-83.01%	+1.02%
Max Drawdown (1Y) Largest decline over 1 year	-53.79%	-69.13%	+15.34%
Max Drawdown (3Y) Largest decline over 3 years	-59.47%	-69.13%	+9.66%
Max Drawdown (5Y) Largest decline over 5 years	-81.99%	-83.01%	+1.02%
Current Drawdown Current decline from peak	-41.63%	-58.26%	+16.63%
Average Drawdown Average peak-to-trough decline	-42.62%	-46.26%	+3.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	31.68%	49.30%	-17.62%

Volatility

MP vs. ARRNF - Volatility Comparison

The current volatility for MP Materials Corp. (MP) is 22.35%, while American Rare Earths Limited (ARRNF) has a volatility of 23.76%. This indicates that MP experiences smaller price fluctuations and is considered to be less risky than ARRNF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MP	ARRNF	Difference
Volatility (1M) Calculated over the trailing 1-month period	22.35%	23.76%	-1.41%
Volatility (6M) Calculated over the trailing 6-month period	51.12%	49.76%	+1.36%
Volatility (1Y) Calculated over the trailing 1-year period	93.82%	126.61%	-32.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	69.62%	314.61%	-244.99%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	72.68%	290.23%	-217.55%

Dividends

MP vs. ARRNF - Dividend Comparison

Neither MP nor ARRNF has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both MP and ARRNF in my portfolio?

MP and ARRNF have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MP or ARRNF?

ARRNF has higher volatility (23.76%) compared to MP (22.35%). In terms of maximum drawdown, MP dropped -81.99% vs ARRNF's -83.01%.

Which has better risk-adjusted returns?

MP currently has the higher Sharpe Ratio (1.33 vs 0.48), 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.