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MP Materials

MP
26
Industrial Materials · Basic Materials
Price
$45.24
-0.22 (-0.48%)
Market Cap
$8.05B
Winston Score
26
Winston is worried
Below-average fundamentals — multiple weak pillars.

Share count falling — buybacks

10.4% over 4y

The company has reduced its share count over this period, returning value to shareholders through buybacks.

Diluted shares outstanding: 189.8M (2021) → 170.1M (2025)

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.

Winston Score History

Growth Profile

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

Revenue Growth

+70.0% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+137.9% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

$0/ year

Declining (-100% vs prior year)

0.0% of revenue

Below sector average (3%)

R&D spend declining — could signal cost-cutting or efficiency

Insider Activity

19.0%ownership

Flat

Insiders holding steady — not selling despite ability to

Cash Runway

~3 years

$1.2B cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

$1.2B cash & investments at current burn rate

Revenue accelerating

MP Materials grew revenue 70% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

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

Gross Margin
32.8%
Modest — 32.8% gross margin
Operating Margin
-0.2%
Losing money on operations — -0.2%
ROCE
-0.0%
Weak — -0.0% return on capital

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

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Growth

Sales YoY
+35.1%
Fast-growing sales (35.1% YoY)
EPS YoY
N/A
Data not available
EPS Consistency
2/8 quarters
Earnings rarely grow — volatile business

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Cash Flow

Cash Conversion
N/A
Data not available
FCF Margin
-119.1%
Burning cash (-119.1%)

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

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Stability

Debt / Equity
0.43
Conservative — low debt load (0.43)
Interest Cover
N/A
Data not available

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Valuation

P/E Ratio (TTM)
N/M
Negative earnings — P/E not meaningful
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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