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Side-by-side financial comparison of IonQ, Inc. (IONQ) and MP Materials Corp. (MP). Click either name above to swap in a different company.

IonQ, Inc. is the larger business by last-quarter revenue ($61.9M vs $52.7M, roughly 1.2× MP Materials Corp.). IonQ, Inc. runs the higher net margin — 1217.8% vs 17.9%, a 1199.9% gap on every dollar of revenue. On growth, IonQ, Inc. posted the faster year-over-year revenue change (428.5% vs -13.6%). IonQ, Inc. produced more free cash flow last quarter ($-83.3M vs $-109.3M).

IonQ, Inc. is an American quantum computing hardware and software company headquartered in College Park, Maryland. The company develops general-purpose trapped ion quantum computers and accompanying software to generate, optimize, and execute quantum circuits.

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.

IONQ vs MP — Head-to-Head

Bigger by revenue
IONQ
IONQ
1.2× larger
IONQ
$61.9M
$52.7M
MP
Growing faster (revenue YoY)
IONQ
IONQ
+442.1% gap
IONQ
428.5%
-13.6%
MP
Higher net margin
IONQ
IONQ
1199.9% more per $
IONQ
1217.8%
17.9%
MP
More free cash flow
IONQ
IONQ
$26.0M more FCF
IONQ
$-83.3M
$-109.3M
MP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
IONQ
IONQ
MP
MP
Revenue
$61.9M
$52.7M
Net Profit
$753.7M
$9.4M
Gross Margin
Operating Margin
-369.4%
-7.0%
Net Margin
1217.8%
17.9%
Revenue YoY
428.5%
-13.6%
Net Profit YoY
473.1%
142.2%
EPS (diluted)
$2.60
$0.07

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
IONQ
IONQ
MP
MP
Q4 25
$61.9M
$52.7M
Q3 25
$39.9M
$53.6M
Q2 25
$20.7M
$57.4M
Q1 25
$60.8M
Q4 24
$11.7M
$61.0M
Q3 24
$12.4M
$62.9M
Q2 24
$11.4M
$31.3M
Q1 24
$48.7M
Net Profit
IONQ
IONQ
MP
MP
Q4 25
$753.7M
$9.4M
Q3 25
$-1.1B
$-41.8M
Q2 25
$-176.8M
$-30.9M
Q1 25
$-22.6M
Q4 24
$-202.0M
$-22.3M
Q3 24
$-52.5M
$-25.5M
Q2 24
$-37.6M
$-34.1M
Q1 24
$16.5M
Operating Margin
IONQ
IONQ
MP
MP
Q4 25
-369.4%
-7.0%
Q3 25
-423.5%
-125.2%
Q2 25
-776.0%
-76.5%
Q1 25
-57.2%
Q4 24
-661.9%
-72.1%
Q3 24
-428.5%
-62.8%
Q2 24
-430.0%
-171.1%
Q1 24
-66.6%
Net Margin
IONQ
IONQ
MP
MP
Q4 25
1217.8%
17.9%
Q3 25
-2646.3%
-78.0%
Q2 25
-854.5%
-53.8%
Q1 25
-37.2%
Q4 24
-1725.0%
-36.6%
Q3 24
-423.4%
-40.5%
Q2 24
-330.0%
-108.9%
Q1 24
33.9%
EPS (diluted)
IONQ
IONQ
MP
MP
Q4 25
$2.60
$0.07
Q3 25
$-3.58
$-0.24
Q2 25
$-0.70
$-0.19
Q1 25
$-0.14
Q4 24
$-0.95
$-0.12
Q3 24
$-0.24
$-0.16
Q2 24
$-0.18
$-0.21
Q1 24
$-0.08

Balance Sheet & Financial Strength

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

Metric
IONQ
IONQ
MP
MP
Cash + ST InvestmentsLiquidity on hand
$2.4B
$1.2B
Total DebtLower is stronger
$998.7M
Stockholders' EquityBook value
$3.8B
$2.0B
Total Assets
$6.6B
$3.9B
Debt / EquityLower = less leverage
0.50×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
IONQ
IONQ
MP
MP
Q4 25
$2.4B
$1.2B
Q3 25
$1.1B
$1.1B
Q2 25
$546.9M
$261.5M
Q1 25
$198.3M
Q4 24
$340.3M
$282.4M
Q3 24
$365.7M
$284.4M
Q2 24
$369.8M
$295.6M
Q1 24
$296.5M
Total Debt
IONQ
IONQ
MP
MP
Q4 25
$998.7M
Q3 25
$997.3M
Q2 25
$910.8M
Q1 25
$909.8M
Q4 24
$908.7M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
IONQ
IONQ
MP
MP
Q4 25
$3.8B
$2.0B
Q3 25
$2.3B
$2.0B
Q2 25
$1.2B
$1.0B
Q1 25
$1.0B
Q4 24
$383.9M
$1.1B
Q3 24
$435.7M
$1.1B
Q2 24
$463.3M
$1.1B
Q1 24
$1.1B
Total Assets
IONQ
IONQ
MP
MP
Q4 25
$6.6B
$3.9B
Q3 25
$4.3B
$3.8B
Q2 25
$1.3B
$2.3B
Q1 25
$2.4B
Q4 24
$508.4M
$2.3B
Q3 24
$497.9M
$2.3B
Q2 24
$517.4M
$2.4B
Q1 24
$2.4B
Debt / Equity
IONQ
IONQ
MP
MP
Q4 25
0.50×
Q3 25
0.51×
Q2 25
0.90×
Q1 25
0.88×
Q4 24
0.86×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
IONQ
IONQ
MP
MP
Operating Cash FlowLast quarter
$-74.5M
$-46.9M
Free Cash FlowOCF − Capex
$-83.3M
$-109.3M
FCF MarginFCF / Revenue
-134.6%
-207.4%
Capex IntensityCapex / Revenue
14.2%
118.5%
Cash ConversionOCF / Net Profit
-0.10×
-4.97×
TTM Free Cash FlowTrailing 4 quarters
$-307.3M
$-328.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
IONQ
IONQ
MP
MP
Q4 25
$-74.5M
$-46.9M
Q3 25
$-123.1M
$-42.0M
Q2 25
$-52.6M
$-3.7M
Q1 25
$-63.2M
Q4 24
$-39.4M
$30.5M
Q3 24
$-19.2M
$-6.8M
Q2 24
$-26.6M
$30.8M
Q1 24
$-41.1M
Free Cash Flow
IONQ
IONQ
MP
MP
Q4 25
$-83.3M
$-109.3M
Q3 25
$-127.2M
$-92.5M
Q2 25
$-53.8M
$-32.7M
Q1 25
$-93.7M
Q4 24
$-43.0M
$-11.2M
Q3 24
$-23.0M
$-53.3M
Q2 24
$-34.1M
$-15.6M
Q1 24
$-93.0M
FCF Margin
IONQ
IONQ
MP
MP
Q4 25
-134.6%
-207.4%
Q3 25
-319.1%
-172.8%
Q2 25
-259.8%
-56.9%
Q1 25
-154.0%
Q4 24
-367.4%
-18.3%
Q3 24
-185.3%
-84.7%
Q2 24
-299.3%
-50.1%
Q1 24
-191.0%
Capex Intensity
IONQ
IONQ
MP
MP
Q4 25
14.2%
118.5%
Q3 25
10.4%
94.3%
Q2 25
5.8%
50.5%
Q1 25
50.1%
Q4 24
30.7%
68.3%
Q3 24
30.4%
73.8%
Q2 24
65.8%
148.7%
Q1 24
106.5%
Cash Conversion
IONQ
IONQ
MP
MP
Q4 25
-0.10×
-4.97×
Q3 25
Q2 25
Q1 25
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

IONQ
IONQ

Other$31.2M50%
Platform Consulting And Support Services$30.7M50%

MP
MP

Materials Segment$35.6M68%
Other$17.1M32%

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