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Side-by-side financial comparison of Ultragenyx Pharmaceutical Inc. (RARE) and Rocket Lab Corp (RKLB). Click either name above to swap in a different company.

Ultragenyx Pharmaceutical Inc. is the larger business by last-quarter revenue ($207.3M vs $179.7M, roughly 1.2× Rocket Lab Corp). Rocket Lab Corp runs the higher net margin — -29.5% vs -62.0%, a 32.6% gap on every dollar of revenue. On growth, Rocket Lab Corp posted the faster year-over-year revenue change (35.7% vs 25.9%). Ultragenyx Pharmaceutical Inc. produced more free cash flow last quarter ($-100.8M vs $-114.2M). Over the past eight quarters, Rocket Lab Corp's revenue compounded faster (39.2% CAGR vs 38.0%).

Ultragenyx Pharmaceutical Inc. is an American biopharmaceutical company involved in the research and development of novel products for treatment of rare and ultra-rare genetic diseases for which there are typically no approved treatments and high unmet medical need. The company works with multiple drug modalities including biologics, small molecule, gene therapies, and ASO and mRNAs in the disease categories of bone, endocrine, metabolic, muscle and CNS diseases.

Rocket Lab Corporation is a publicly traded aerospace manufacturer and launch service provider. Its Electron orbital rocket launches small satellites and has successfully completed over 75 missions as of January 2026, making it the most prolific small-lift launch vehicle in operation globally. A suborbital variant of Electron, called HASTE, was developed as a testbed to advance hypersonic technology development, while the next-generation reusable Neutron medium-lift launch vehicle is in devel...

RARE vs RKLB — Head-to-Head

Bigger by revenue
RARE
RARE
1.2× larger
RARE
$207.3M
$179.7M
RKLB
Growing faster (revenue YoY)
RKLB
RKLB
+9.8% gap
RKLB
35.7%
25.9%
RARE
Higher net margin
RKLB
RKLB
32.6% more per $
RKLB
-29.5%
-62.0%
RARE
More free cash flow
RARE
RARE
$13.4M more FCF
RARE
$-100.8M
$-114.2M
RKLB
Faster 2-yr revenue CAGR
RKLB
RKLB
Annualised
RKLB
39.2%
38.0%
RARE

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
RARE
RARE
RKLB
RKLB
Revenue
$207.3M
$179.7M
Net Profit
$-128.6M
$-52.9M
Gross Margin
38.0%
Operating Margin
-54.7%
-28.4%
Net Margin
-62.0%
-29.5%
Revenue YoY
25.9%
35.7%
Net Profit YoY
3.5%
-1.1%
EPS (diluted)
$-1.28
$-0.09

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
RARE
RARE
RKLB
RKLB
Q4 25
$207.3M
$179.7M
Q3 25
$159.9M
$155.1M
Q2 25
$166.5M
$144.5M
Q1 25
$139.3M
$122.6M
Q4 24
$164.6M
$132.4M
Q3 24
$139.5M
$104.8M
Q2 24
$147.0M
$106.3M
Q1 24
$108.8M
$92.8M
Net Profit
RARE
RARE
RKLB
RKLB
Q4 25
$-128.6M
$-52.9M
Q3 25
$-180.4M
$-18.3M
Q2 25
$-115.0M
$-66.4M
Q1 25
$-151.1M
$-60.6M
Q4 24
$-133.2M
$-52.3M
Q3 24
$-133.5M
$-51.9M
Q2 24
$-131.6M
$-41.6M
Q1 24
$-170.7M
$-44.3M
Gross Margin
RARE
RARE
RKLB
RKLB
Q4 25
38.0%
Q3 25
37.0%
Q2 25
32.1%
Q1 25
28.8%
Q4 24
27.8%
Q3 24
26.7%
Q2 24
25.6%
Q1 24
26.1%
Operating Margin
RARE
RARE
RKLB
RKLB
Q4 25
-54.7%
-28.4%
Q3 25
-106.9%
-38.0%
Q2 25
-64.8%
-41.3%
Q1 25
-102.6%
-48.3%
Q4 24
-74.3%
-38.9%
Q3 24
-94.6%
-49.5%
Q2 24
-79.1%
-40.7%
Q1 24
-151.9%
-46.4%
Net Margin
RARE
RARE
RKLB
RKLB
Q4 25
-62.0%
-29.5%
Q3 25
-112.8%
-11.8%
Q2 25
-69.0%
-46.0%
Q1 25
-108.5%
-49.5%
Q4 24
-80.9%
-39.5%
Q3 24
-95.7%
-49.6%
Q2 24
-89.5%
-39.2%
Q1 24
-156.8%
-47.7%
EPS (diluted)
RARE
RARE
RKLB
RKLB
Q4 25
$-1.28
$-0.09
Q3 25
$-1.81
$-0.03
Q2 25
$-1.17
$-0.13
Q1 25
$-1.57
$-0.12
Q4 24
$-1.34
$-0.11
Q3 24
$-1.40
$-0.10
Q2 24
$-1.52
$-0.08
Q1 24
$-2.03
$-0.09

Balance Sheet & Financial Strength

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

Metric
RARE
RARE
RKLB
RKLB
Cash + ST InvestmentsLiquidity on hand
$421.0M
$1.0B
Total DebtLower is stronger
$152.4M
Stockholders' EquityBook value
$-80.0M
$1.7B
Total Assets
$1.5B
$2.3B
Debt / EquityLower = less leverage
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
RARE
RARE
RKLB
RKLB
Q4 25
$421.0M
$1.0B
Q3 25
$202.5M
$976.7M
Q2 25
$176.3M
$688.1M
Q1 25
$127.1M
$428.4M
Q4 24
$174.0M
$419.0M
Q3 24
$150.6M
$442.4M
Q2 24
$480.7M
$496.8M
Q1 24
$112.3M
$492.5M
Total Debt
RARE
RARE
RKLB
RKLB
Q4 25
$152.4M
Q3 25
$347.0M
Q2 25
$346.5M
Q1 25
$345.9M
Q4 24
$345.4M
Q3 24
$61.2M
Q2 24
$64.2M
Q1 24
$66.8M
Stockholders' Equity
RARE
RARE
RKLB
RKLB
Q4 25
$-80.0M
$1.7B
Q3 25
$9.2M
$1.3B
Q2 25
$151.3M
$688.5M
Q1 25
$144.2M
$431.3M
Q4 24
$255.0M
$382.5M
Q3 24
$346.8M
$419.8M
Q2 24
$432.4M
$455.2M
Q1 24
$140.3M
$478.9M
Total Assets
RARE
RARE
RKLB
RKLB
Q4 25
$1.5B
$2.3B
Q3 25
$1.2B
$2.2B
Q2 25
$1.3B
$1.6B
Q1 25
$1.3B
$1.3B
Q4 24
$1.5B
$1.2B
Q3 24
$1.5B
$1.2B
Q2 24
$1.6B
$1.2B
Q1 24
$1.3B
$1.2B
Debt / Equity
RARE
RARE
RKLB
RKLB
Q4 25
0.09×
Q3 25
0.27×
Q2 25
0.50×
Q1 25
0.80×
Q4 24
0.90×
Q3 24
0.15×
Q2 24
0.14×
Q1 24
0.14×

Cash Flow & Capital Efficiency

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

Metric
RARE
RARE
RKLB
RKLB
Operating Cash FlowLast quarter
$-99.8M
$-64.5M
Free Cash FlowOCF − Capex
$-100.8M
$-114.2M
FCF MarginFCF / Revenue
-48.6%
-63.6%
Capex IntensityCapex / Revenue
0.5%
27.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-472.0M
$-321.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
RARE
RARE
RKLB
RKLB
Q4 25
$-99.8M
$-64.5M
Q3 25
$-91.4M
$-23.5M
Q2 25
$-108.3M
$-23.2M
Q1 25
$-166.5M
$-54.2M
Q4 24
$-79.3M
$-2.4M
Q3 24
$-67.0M
$-30.9M
Q2 24
$-77.0M
$-13.0M
Q1 24
$-190.7M
$-2.6M
Free Cash Flow
RARE
RARE
RKLB
RKLB
Q4 25
$-100.8M
$-114.2M
Q3 25
$-92.7M
$-69.4M
Q2 25
$-110.7M
$-55.3M
Q1 25
$-167.8M
$-82.9M
Q4 24
$-79.5M
$-23.9M
Q3 24
$-68.6M
$-41.9M
Q2 24
$-79.0M
$-28.3M
Q1 24
$-193.9M
$-21.8M
FCF Margin
RARE
RARE
RKLB
RKLB
Q4 25
-48.6%
-63.6%
Q3 25
-58.0%
-44.8%
Q2 25
-66.5%
-38.3%
Q1 25
-120.5%
-67.6%
Q4 24
-48.3%
-18.1%
Q3 24
-49.2%
-40.0%
Q2 24
-53.7%
-26.7%
Q1 24
-178.2%
-23.5%
Capex Intensity
RARE
RARE
RKLB
RKLB
Q4 25
0.5%
27.6%
Q3 25
0.8%
29.6%
Q2 25
1.5%
22.2%
Q1 25
1.0%
23.4%
Q4 24
0.1%
16.3%
Q3 24
1.2%
10.5%
Q2 24
1.4%
14.4%
Q1 24
3.0%
20.7%

Financial Flow Comparison

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

Revenue Breakdown by Segment

RARE
RARE

Royalty$105.6M51%
Products$101.7M49%

RKLB
RKLB

Products$94.0M52%
Transferred Over Time$87.3M49%

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