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Side-by-side financial comparison of MP Materials Corp. (MP) and SOUNDHOUND AI, INC. (SOUN). Click either name above to swap in a different company.

SOUNDHOUND AI, INC. is the larger business by last-quarter revenue ($55.1M vs $52.7M, roughly 1.0× MP Materials Corp.). SOUNDHOUND AI, INC. runs the higher net margin — 72.8% vs 17.9%, a 54.9% gap on every dollar of revenue. On growth, SOUNDHOUND AI, INC. posted the faster year-over-year revenue change (59.4% vs -13.6%). SOUNDHOUND AI, INC. produced more free cash flow last quarter ($-22.3M vs $-109.3M). Over the past eight quarters, SOUNDHOUND AI, INC.'s revenue compounded faster (117.9% CAGR vs 4.0%).

MP Materials Corp. is a U.S.-based producer of rare earth materials. The company owns and operates the Mountain Pass mine in California, the only active rare earth mining and processing facility in the Western Hemisphere, producing essential materials for electric vehicles, wind turbines, and defense applications.

SoundHound AI, Inc. is an American music and speech recognition company based in Santa Clara, California. It was originally founded as Melodis in 2005 before rebranding to SoundHound Inc. in 2010, and SoundHound AI in 2022.

MP vs SOUN — Head-to-Head

Bigger by revenue
SOUN
SOUN
1.0× larger
SOUN
$55.1M
$52.7M
MP
Growing faster (revenue YoY)
SOUN
SOUN
+73.0% gap
SOUN
59.4%
-13.6%
MP
Higher net margin
SOUN
SOUN
54.9% more per $
SOUN
72.8%
17.9%
MP
More free cash flow
SOUN
SOUN
$87.0M more FCF
SOUN
$-22.3M
$-109.3M
MP
Faster 2-yr revenue CAGR
SOUN
SOUN
Annualised
SOUN
117.9%
4.0%
MP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MP
MP
SOUN
SOUN
Revenue
$52.7M
$55.1M
Net Profit
$9.4M
$40.1M
Gross Margin
47.9%
Operating Margin
-7.0%
77.3%
Net Margin
17.9%
72.8%
Revenue YoY
-13.6%
59.4%
Net Profit YoY
142.2%
115.5%
EPS (diluted)
$0.07
$-0.13

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
MP
MP
SOUN
SOUN
Q4 25
$52.7M
$55.1M
Q3 25
$53.6M
$42.0M
Q2 25
$57.4M
$42.7M
Q1 25
$60.8M
$29.1M
Q4 24
$61.0M
$34.5M
Q3 24
$62.9M
$25.1M
Q2 24
$31.3M
$13.5M
Q1 24
$48.7M
$11.6M
Net Profit
MP
MP
SOUN
SOUN
Q4 25
$9.4M
$40.1M
Q3 25
$-41.8M
$-109.3M
Q2 25
$-30.9M
$-74.7M
Q1 25
$-22.6M
$129.9M
Q4 24
$-22.3M
$-258.6M
Q3 24
$-25.5M
$-21.8M
Q2 24
$-34.1M
$-37.3M
Q1 24
$16.5M
$-33.0M
Gross Margin
MP
MP
SOUN
SOUN
Q4 25
47.9%
Q3 25
42.6%
Q2 25
39.0%
Q1 25
36.5%
Q4 24
39.9%
Q3 24
48.6%
Q2 24
63.0%
Q1 24
59.7%
Operating Margin
MP
MP
SOUN
SOUN
Q4 25
-7.0%
77.3%
Q3 25
-125.2%
-275.6%
Q2 25
-76.5%
-182.9%
Q1 25
-57.2%
Q4 24
-72.1%
-744.2%
Q3 24
-62.8%
-134.6%
Q2 24
-171.1%
-163.3%
Q1 24
-66.6%
-246.1%
Net Margin
MP
MP
SOUN
SOUN
Q4 25
17.9%
72.8%
Q3 25
-78.0%
-259.9%
Q2 25
-53.8%
-175.1%
Q1 25
-37.2%
446.1%
Q4 24
-36.6%
-748.6%
Q3 24
-40.5%
-86.7%
Q2 24
-108.9%
-277.2%
Q1 24
33.9%
-284.7%
EPS (diluted)
MP
MP
SOUN
SOUN
Q4 25
$0.07
$-0.13
Q3 25
$-0.24
$-0.27
Q2 25
$-0.19
$-0.19
Q1 25
$-0.14
$0.31
Q4 24
$-0.12
$-0.75
Q3 24
$-0.16
$-0.06
Q2 24
$-0.21
$-0.11
Q1 24
$-0.08
$-0.12

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
MP
MP
SOUN
SOUN
Cash + ST InvestmentsLiquidity on hand
$1.2B
$248.5M
Total DebtLower is stronger
$998.7M
Stockholders' EquityBook value
$2.0B
$463.8M
Total Assets
$3.9B
$688.2M
Debt / EquityLower = less leverage
0.50×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MP
MP
SOUN
SOUN
Q4 25
$1.2B
$248.5M
Q3 25
$1.1B
$268.9M
Q2 25
$261.5M
$230.3M
Q1 25
$198.3M
$245.8M
Q4 24
$282.4M
$198.2M
Q3 24
$284.4M
$135.6M
Q2 24
$295.6M
$200.2M
Q1 24
$296.5M
$211.7M
Total Debt
MP
MP
SOUN
SOUN
Q4 25
$998.7M
Q3 25
$997.3M
Q2 25
$910.8M
Q1 25
$909.8M
Q4 24
$908.7M
$0
Q3 24
Q2 24
Q1 24
$85.5M
Stockholders' Equity
MP
MP
SOUN
SOUN
Q4 25
$2.0B
$463.8M
Q3 25
$2.0B
$399.2M
Q2 25
$1.0B
$359.8M
Q1 25
$1.0B
$397.0M
Q4 24
$1.1B
$182.7M
Q3 24
$1.1B
$296.0M
Q2 24
$1.1B
$223.9M
Q1 24
$1.1B
$155.5M
Total Assets
MP
MP
SOUN
SOUN
Q4 25
$3.9B
$688.2M
Q3 25
$3.8B
$702.2M
Q2 25
$2.3B
$579.5M
Q1 25
$2.4B
$587.5M
Q4 24
$2.3B
$554.0M
Q3 24
$2.3B
$499.7M
Q2 24
$2.4B
$266.7M
Q1 24
$2.4B
$287.4M
Debt / Equity
MP
MP
SOUN
SOUN
Q4 25
0.50×
Q3 25
0.51×
Q2 25
0.90×
Q1 25
0.88×
Q4 24
0.86×
0.00×
Q3 24
Q2 24
Q1 24
0.55×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
MP
MP
SOUN
SOUN
Operating Cash FlowLast quarter
$-46.9M
$-21.9M
Free Cash FlowOCF − Capex
$-109.3M
$-22.3M
FCF MarginFCF / Revenue
-207.4%
-40.4%
Capex IntensityCapex / Revenue
118.5%
0.7%
Cash ConversionOCF / Net Profit
-4.97×
-0.55×
TTM Free Cash FlowTrailing 4 quarters
$-328.1M
$-99.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MP
MP
SOUN
SOUN
Q4 25
$-46.9M
$-21.9M
Q3 25
$-42.0M
$-32.7M
Q2 25
$-3.7M
$-24.5M
Q1 25
$-63.2M
$-19.2M
Q4 24
$30.5M
$-33.1M
Q3 24
$-6.8M
$-35.3M
Q2 24
$30.8M
$-18.5M
Q1 24
$-41.1M
$-21.9M
Free Cash Flow
MP
MP
SOUN
SOUN
Q4 25
$-109.3M
$-22.3M
Q3 25
$-92.5M
$-32.8M
Q2 25
$-32.7M
$-24.7M
Q1 25
$-93.7M
$-19.3M
Q4 24
$-11.2M
$-33.2M
Q3 24
$-53.3M
$-35.5M
Q2 24
$-15.6M
$-18.7M
Q1 24
$-93.0M
$-22.0M
FCF Margin
MP
MP
SOUN
SOUN
Q4 25
-207.4%
-40.4%
Q3 25
-172.8%
-78.1%
Q2 25
-56.9%
-57.8%
Q1 25
-154.0%
-66.4%
Q4 24
-18.3%
-96.1%
Q3 24
-84.7%
-141.6%
Q2 24
-50.1%
-139.1%
Q1 24
-191.0%
-190.2%
Capex Intensity
MP
MP
SOUN
SOUN
Q4 25
118.5%
0.7%
Q3 25
94.3%
0.4%
Q2 25
50.5%
0.4%
Q1 25
50.1%
0.6%
Q4 24
68.3%
0.2%
Q3 24
73.8%
0.9%
Q2 24
148.7%
1.8%
Q1 24
106.5%
0.9%
Cash Conversion
MP
MP
SOUN
SOUN
Q4 25
-4.97×
-0.55×
Q3 25
Q2 25
Q1 25
-0.15×
Q4 24
Q3 24
Q2 24
Q1 24
-2.49×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

MP
MP

Materials Segment$35.6M68%
Other$17.1M32%

SOUN
SOUN

Hosted Services$37.7M68%
Licensing$12.6M23%
Professional Service$4.6M8%

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