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Side-by-side financial comparison of Aurinia Pharmaceuticals Inc. (AUPH) and System1, Inc. (SST). Click either name above to swap in a different company.

Aurinia Pharmaceuticals Inc. is the larger business by last-quarter revenue ($77.1M vs $51.9M, roughly 1.5× System1, Inc.). Aurinia Pharmaceuticals Inc. runs the higher net margin — 273.4% vs -26.0%, a 299.3% gap on every dollar of revenue. On growth, Aurinia Pharmaceuticals Inc. posted the faster year-over-year revenue change (28.8% vs -31.3%). Over the past eight quarters, Aurinia Pharmaceuticals Inc.'s revenue compounded faster (23.8% CAGR vs -21.8%).

Aurinia Pharmaceuticals Inc. is a late-stage biopharmaceutical company focused on developing and commercializing targeted therapies for autoimmune and kidney diseases. Its lead approved product is Lupkynis for adult active lupus nephritis treatment, with core operations in North America and European markets, focusing on nephrology and rare immunology therapeutic segments.

System1 is an American Internet advertising company. Formerly known as OpenMail, it was founded in 2013. It describes itself as operating a "Responsive Acquisition Marketing Platform", and cites privacy as one of its principal foci, although it has been criticized for its influence on privacy-focused properties, including search engine Startpage.com. It is headquartered in Marina del Rey, California.

AUPH vs SST — Head-to-Head

Bigger by revenue
AUPH
AUPH
1.5× larger
AUPH
$77.1M
$51.9M
SST
Growing faster (revenue YoY)
AUPH
AUPH
+60.1% gap
AUPH
28.8%
-31.3%
SST
Higher net margin
AUPH
AUPH
299.3% more per $
AUPH
273.4%
-26.0%
SST
Faster 2-yr revenue CAGR
AUPH
AUPH
Annualised
AUPH
23.8%
-21.8%
SST

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AUPH
AUPH
SST
SST
Revenue
$77.1M
$51.9M
Net Profit
$210.8M
$-13.5M
Gross Margin
88.6%
41.0%
Operating Margin
43.1%
-33.6%
Net Margin
273.4%
-26.0%
Revenue YoY
28.8%
-31.3%
Net Profit YoY
14651.2%
4.8%
EPS (diluted)
$1.52
$-3.58

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
AUPH
AUPH
SST
SST
Q4 25
$77.1M
$51.9M
Q3 25
$73.5M
$61.6M
Q2 25
$70.0M
$78.1M
Q1 25
$62.5M
$74.5M
Q4 24
$59.9M
$75.6M
Q3 24
$67.8M
$88.8M
Q2 24
$57.2M
$94.6M
Q1 24
$50.3M
$84.9M
Net Profit
AUPH
AUPH
SST
SST
Q4 25
$210.8M
$-13.5M
Q3 25
$31.6M
$-18.5M
Q2 25
$21.5M
$-17.5M
Q1 25
$23.3M
$-15.9M
Q4 24
$1.4M
$-14.2M
Q3 24
$14.3M
$-23.6M
Q2 24
$722.0K
$-26.4M
Q1 24
$-10.7M
$-10.5M
Gross Margin
AUPH
AUPH
SST
SST
Q4 25
88.6%
41.0%
Q3 25
88.9%
36.9%
Q2 25
89.8%
35.7%
Q1 25
86.3%
38.2%
Q4 24
90.7%
42.1%
Q3 24
91.1%
28.0%
Q2 24
84.4%
27.6%
Q1 24
84.6%
21.9%
Operating Margin
AUPH
AUPH
SST
SST
Q4 25
43.1%
-33.6%
Q3 25
40.5%
-25.3%
Q2 25
28.7%
-20.4%
Q1 25
35.0%
-17.6%
Q4 24
-2.8%
-15.7%
Q3 24
17.3%
-24.6%
Q2 24
-2.6%
-30.8%
Q1 24
-26.3%
-30.4%
Net Margin
AUPH
AUPH
SST
SST
Q4 25
273.4%
-26.0%
Q3 25
42.9%
-30.1%
Q2 25
30.7%
-22.4%
Q1 25
37.4%
-21.3%
Q4 24
2.4%
-18.7%
Q3 24
21.2%
-26.6%
Q2 24
1.3%
-27.9%
Q1 24
-21.4%
-12.4%
EPS (diluted)
AUPH
AUPH
SST
SST
Q4 25
$1.52
$-3.58
Q3 25
$0.23
$-2.30
Q2 25
$0.16
$-2.23
Q1 25
$0.16
$-0.21
Q4 24
$0.00
$-3.41
Q3 24
$0.10
$-3.37
Q2 24
$0.01
$-3.80
Q1 24
$-0.07
$-0.16

Balance Sheet & Financial Strength

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

Metric
AUPH
AUPH
SST
SST
Cash + ST InvestmentsLiquidity on hand
$80.2M
$86.9M
Total DebtLower is stronger
$305.1M
Stockholders' EquityBook value
$581.3M
$30.5M
Total Assets
$751.6M
$405.0M
Debt / EquityLower = less leverage
10.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AUPH
AUPH
SST
SST
Q4 25
$80.2M
$86.9M
Q3 25
$72.9M
$54.6M
Q2 25
$52.9M
$63.6M
Q1 25
$66.1M
$43.9M
Q4 24
$83.4M
$63.6M
Q3 24
$36.6M
$69.1M
Q2 24
$33.3M
$75.7M
Q1 24
$63.9M
$69.9M
Total Debt
AUPH
AUPH
SST
SST
Q4 25
$305.1M
Q3 25
$259.2M
Q2 25
$263.3M
Q1 25
$267.4M
Q4 24
$255.1M
Q3 24
$259.2M
Q2 24
$263.3M
Q1 24
$268.6M
Stockholders' Equity
AUPH
AUPH
SST
SST
Q4 25
$581.3M
$30.5M
Q3 25
$365.8M
$42.7M
Q2 25
$335.3M
$58.2M
Q1 25
$350.2M
$67.2M
Q4 24
$377.5M
$80.3M
Q3 24
$388.0M
$90.3M
Q2 24
$364.6M
$109.4M
Q1 24
$359.5M
$131.7M
Total Assets
AUPH
AUPH
SST
SST
Q4 25
$751.6M
$405.0M
Q3 25
$527.5M
$385.2M
Q2 25
$502.6M
$429.2M
Q1 25
$504.9M
$419.2M
Q4 24
$550.6M
$459.1M
Q3 24
$549.4M
$479.3M
Q2 24
$523.5M
$511.3M
Q1 24
$516.6M
$521.1M
Debt / Equity
AUPH
AUPH
SST
SST
Q4 25
10.01×
Q3 25
6.07×
Q2 25
4.53×
Q1 25
3.98×
Q4 24
3.18×
Q3 24
2.87×
Q2 24
2.41×
Q1 24
2.04×

Cash Flow & Capital Efficiency

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

Metric
AUPH
AUPH
SST
SST
Operating Cash FlowLast quarter
$45.7M
$-10.6M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
0.0%
Cash ConversionOCF / Net Profit
0.22×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AUPH
AUPH
SST
SST
Q4 25
$45.7M
$-10.6M
Q3 25
$44.4M
$-2.1M
Q2 25
$44.2M
$24.5M
Q1 25
$1.3M
$-15.9M
Q4 24
$30.1M
$772.0K
Q3 24
$17.0M
$-5.0K
Q2 24
$15.8M
$10.0M
Q1 24
$-18.6M
$-16.0M
Free Cash Flow
AUPH
AUPH
SST
SST
Q4 25
Q3 25
Q2 25
Q1 25
$-16.0M
Q4 24
Q3 24
$-36.0K
Q2 24
Q1 24
FCF Margin
AUPH
AUPH
SST
SST
Q4 25
Q3 25
Q2 25
Q1 25
-21.5%
Q4 24
Q3 24
-0.0%
Q2 24
Q1 24
Capex Intensity
AUPH
AUPH
SST
SST
Q4 25
0.0%
Q3 25
0.0%
Q2 25
0.0%
Q1 25
0.1%
Q4 24
0.0%
Q3 24
0.0%
Q2 24
0.0%
Q1 24
0.0%
Cash Conversion
AUPH
AUPH
SST
SST
Q4 25
0.22×
Q3 25
1.41×
Q2 25
2.06×
Q1 25
0.06×
Q4 24
21.07×
Q3 24
1.19×
Q2 24
21.94×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

AUPH
AUPH

Products$74.2M96%
License Collaboration And Royalty Revenue$2.9M4%

SST
SST

Segment breakdown not available.

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