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MP Materials

MP
24
Industrial Materials · Basic Materials
Winston Score
24
Winston is worried
Weak fundamentals across most pillars.
Data as of Aug 23, 2026 · filings through Jun 30, 2026
How the score breaks down
Quality
Weak
Growth
Weak
Cash Flow
Weak
Stability
Mixed
Valuation
Data not available

Winston Score History

The full picture

MP Materials owns and operates the Mountain Pass mine in California, the only active rare earth mining and processing facility in the United States. The company digs rare earth elements out of the ground and refines them into materials used to make powerful magnets. Those magnets go into electric vehicles, wind turbines, defense systems, and consumer electronics.

MP Materials makes money by selling rare earth concentrate and refined materials to manufacturers, primarily in Asia, though it is working to build a full U.S.-based supply chain including a magnet factory in Texas. It is a small but strategically important company, as the U.S. government has pushed to reduce dependence on China, which dominates global rare earth processing. The key growth driver is completing its downstream magnet business and landing long-term contracts with automakers like General Motors, but the main risk is that rare earth prices are volatile and the company is currently unprofitable while it builds out that expanded operation.

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

-331.6% YoY

YoY Growth Rate

Revenue declining

EPS Growth

+134.1% YoY

YoY Growth Rate

EPS growth accelerating

Insider Activity

19.0%ownership

Flat

Insider ownership roughly steady over the past year

Cash Runway

~14 months

$1.5B cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Adequate runway but may need to raise capital within 2 years

Revenue declining

MP Materials's revenue is actually shrinking. In a growth stock, that removes the core investment thesis. The low Winston Score here may be warranted — unless there's a turnaround story.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Profit per sale
Gross Margin
44.1%
Healthy — 44.1% gross margin
Profit after running costs
Operating Margin
-19.5%
Losing money on operations — -19.5%
Return on the money invested
ROCE
-2.3%
Weak — -2.3% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

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Growth

Sales growth
Sales YoY
-35.1%
Shrinking sales (-35.1% YoY)
Profit growth
EPS YoY
N/A
Data not available
How steady the profit is
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Profit that turns into cash
Cash Conversion
N/A
Data not available
Spare cash per sale
FCF Margin
-371.3%
Burning cash (-371.3%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

What it owes vs what it owns
Debt / Equity
0.48
Conservative — low debt load (0.48)
Covers its interest
Interest Cover
N/A
Data not available

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Valuation

Price vs profit
P/E Ratio (TTM)
N/M
no trend
Negative earnings — P/E not meaningful
Cheaper or dearer next year
P/E vs Forward
N/A
not available
Data not available

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Dividends

Not applicable for this business.
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