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Side-by-side financial comparison of SOLENO THERAPEUTICS INC (SLNO) and System1, Inc. (SST). Click either name above to swap in a different company.

SOLENO THERAPEUTICS INC is the larger business by last-quarter revenue ($66.0M vs $51.9M, roughly 1.3× System1, Inc.). SOLENO THERAPEUTICS INC runs the higher net margin — 39.4% vs -26.0%, a 65.4% gap on every dollar of revenue.

SOLENO THERAPEUTICS INC is a clinical-stage biopharmaceutical company specializing in developing novel therapies for rare endocrine, metabolic, and neurodevelopmental disorders. Its lead product candidate targets Prader-Willi syndrome, a rare genetic condition, with key patient markets across North America and the European Union.

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.

SLNO vs SST — Head-to-Head

Bigger by revenue
SLNO
SLNO
1.3× larger
SLNO
$66.0M
$51.9M
SST
Higher net margin
SLNO
SLNO
65.4% more per $
SLNO
39.4%
-26.0%
SST

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
SLNO
SLNO
SST
SST
Revenue
$66.0M
$51.9M
Net Profit
$26.0M
$-13.5M
Gross Margin
98.3%
41.0%
Operating Margin
33.5%
-33.6%
Net Margin
39.4%
-26.0%
Revenue YoY
-31.3%
Net Profit YoY
134.0%
4.8%
EPS (diluted)
$0.47
$-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
SLNO
SLNO
SST
SST
Q4 25
$51.9M
Q3 25
$66.0M
$61.6M
Q2 25
$32.7M
$78.1M
Q1 25
$74.5M
Q4 24
$75.6M
Q3 24
$88.8M
Q2 24
$94.6M
Q1 24
$84.9M
Net Profit
SLNO
SLNO
SST
SST
Q4 25
$-13.5M
Q3 25
$26.0M
$-18.5M
Q2 25
$-4.7M
$-17.5M
Q1 25
$-15.9M
Q4 24
$-14.2M
Q3 24
$-23.6M
Q2 24
$-26.4M
Q1 24
$-10.5M
Gross Margin
SLNO
SLNO
SST
SST
Q4 25
41.0%
Q3 25
98.3%
36.9%
Q2 25
97.9%
35.7%
Q1 25
38.2%
Q4 24
42.1%
Q3 24
28.0%
Q2 24
27.6%
Q1 24
21.9%
Operating Margin
SLNO
SLNO
SST
SST
Q4 25
-33.6%
Q3 25
33.5%
-25.3%
Q2 25
-20.0%
-20.4%
Q1 25
-17.6%
Q4 24
-15.7%
Q3 24
-24.6%
Q2 24
-30.8%
Q1 24
-30.4%
Net Margin
SLNO
SLNO
SST
SST
Q4 25
-26.0%
Q3 25
39.4%
-30.1%
Q2 25
-14.4%
-22.4%
Q1 25
-21.3%
Q4 24
-18.7%
Q3 24
-26.6%
Q2 24
-27.9%
Q1 24
-12.4%
EPS (diluted)
SLNO
SLNO
SST
SST
Q4 25
$-3.58
Q3 25
$0.47
$-2.30
Q2 25
$-0.09
$-2.23
Q1 25
$-0.21
Q4 24
$-3.41
Q3 24
$-3.37
Q2 24
$-3.80
Q1 24
$-0.16

Balance Sheet & Financial Strength

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

Metric
SLNO
SLNO
SST
SST
Cash + ST InvestmentsLiquidity on hand
$498.9M
$86.9M
Total DebtLower is stronger
$305.1M
Stockholders' EquityBook value
$494.8M
$30.5M
Total Assets
$599.9M
$405.0M
Debt / EquityLower = less leverage
10.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SLNO
SLNO
SST
SST
Q4 25
$86.9M
Q3 25
$498.9M
$54.6M
Q2 25
$286.8M
$63.6M
Q1 25
$43.9M
Q4 24
$63.6M
Q3 24
$69.1M
Q2 24
$75.7M
Q1 24
$69.9M
Total Debt
SLNO
SLNO
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
SLNO
SLNO
SST
SST
Q4 25
$30.5M
Q3 25
$494.8M
$42.7M
Q2 25
$240.1M
$58.2M
Q1 25
$67.2M
Q4 24
$80.3M
Q3 24
$90.3M
Q2 24
$109.4M
Q1 24
$131.7M
Total Assets
SLNO
SLNO
SST
SST
Q4 25
$405.0M
Q3 25
$599.9M
$385.2M
Q2 25
$332.3M
$429.2M
Q1 25
$419.2M
Q4 24
$459.1M
Q3 24
$479.3M
Q2 24
$511.3M
Q1 24
$521.1M
Debt / Equity
SLNO
SLNO
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
SLNO
SLNO
SST
SST
Operating Cash FlowLast quarter
$43.5M
$-10.6M
Free Cash FlowOCF − Capex
$43.5M
FCF MarginFCF / Revenue
65.8%
Capex IntensityCapex / Revenue
0.0%
0.0%
Cash ConversionOCF / Net Profit
1.67×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SLNO
SLNO
SST
SST
Q4 25
$-10.6M
Q3 25
$43.5M
$-2.1M
Q2 25
$-12.6M
$24.5M
Q1 25
$-15.9M
Q4 24
$772.0K
Q3 24
$-5.0K
Q2 24
$10.0M
Q1 24
$-16.0M
Free Cash Flow
SLNO
SLNO
SST
SST
Q4 25
Q3 25
$43.5M
Q2 25
$-12.6M
Q1 25
$-16.0M
Q4 24
Q3 24
$-36.0K
Q2 24
Q1 24
FCF Margin
SLNO
SLNO
SST
SST
Q4 25
Q3 25
65.8%
Q2 25
-38.6%
Q1 25
-21.5%
Q4 24
Q3 24
-0.0%
Q2 24
Q1 24
Capex Intensity
SLNO
SLNO
SST
SST
Q4 25
0.0%
Q3 25
0.0%
0.0%
Q2 25
0.0%
0.0%
Q1 25
0.1%
Q4 24
0.0%
Q3 24
0.0%
Q2 24
0.0%
Q1 24
0.0%
Cash Conversion
SLNO
SLNO
SST
SST
Q4 25
Q3 25
1.67×
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

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