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

System1, Inc. is the larger business by last-quarter revenue ($51.9M vs $28.9M, roughly 1.8× Outset Medical, Inc.). System1, Inc. runs the higher net margin — -26.0% vs -67.5%, a 41.5% gap on every dollar of revenue. On growth, Outset Medical, Inc. posted the faster year-over-year revenue change (-2.0% vs -31.3%). Over the past eight quarters, Outset Medical, Inc.'s revenue compounded faster (1.2% CAGR vs -21.8%).

Outset Medical, Inc. is a medical technology company focused on developing and commercializing innovative dialysis solutions for patients living with kidney disease. Its flagship Tablo Hemodialysis System supports use in acute care facilities, outpatient clinics, and home settings, serving healthcare providers and patients across the U.S. and select international markets.

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.

OM vs SST — Head-to-Head

Bigger by revenue
SST
SST
1.8× larger
SST
$51.9M
$28.9M
OM
Growing faster (revenue YoY)
OM
OM
+29.3% gap
OM
-2.0%
-31.3%
SST
Higher net margin
SST
SST
41.5% more per $
SST
-26.0%
-67.5%
OM
Faster 2-yr revenue CAGR
OM
OM
Annualised
OM
1.2%
-21.8%
SST

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
OM
OM
SST
SST
Revenue
$28.9M
$51.9M
Net Profit
$-19.5M
$-13.5M
Gross Margin
42.4%
41.0%
Operating Margin
-61.1%
-33.6%
Net Margin
-67.5%
-26.0%
Revenue YoY
-2.0%
-31.3%
Net Profit YoY
24.0%
4.8%
EPS (diluted)
$0.33
$-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
OM
OM
SST
SST
Q4 25
$28.9M
$51.9M
Q3 25
$29.4M
$61.6M
Q2 25
$31.4M
$78.1M
Q1 25
$29.8M
$74.5M
Q4 24
$29.5M
$75.6M
Q3 24
$28.7M
$88.8M
Q2 24
$27.4M
$94.6M
Q1 24
$28.2M
$84.9M
Net Profit
OM
OM
SST
SST
Q4 25
$-19.5M
$-13.5M
Q3 25
$-17.8M
$-18.5M
Q2 25
$-18.5M
$-17.5M
Q1 25
$-25.8M
$-15.9M
Q4 24
$-25.6M
$-14.2M
Q3 24
$-27.9M
$-23.6M
Q2 24
$-34.5M
$-26.4M
Q1 24
$-39.9M
$-10.5M
Gross Margin
OM
OM
SST
SST
Q4 25
42.4%
41.0%
Q3 25
39.4%
36.9%
Q2 25
37.8%
35.7%
Q1 25
37.2%
38.2%
Q4 24
36.5%
42.1%
Q3 24
34.3%
28.0%
Q2 24
35.7%
27.6%
Q1 24
29.2%
21.9%
Operating Margin
OM
OM
SST
SST
Q4 25
-61.1%
-33.6%
Q3 25
-53.7%
-25.3%
Q2 25
-53.7%
-20.4%
Q1 25
-55.1%
-17.6%
Q4 24
-74.2%
-15.7%
Q3 24
-83.2%
-24.6%
Q2 24
-112.3%
-30.8%
Q1 24
-131.0%
-30.4%
Net Margin
OM
OM
SST
SST
Q4 25
-67.5%
-26.0%
Q3 25
-60.6%
-30.1%
Q2 25
-59.0%
-22.4%
Q1 25
-86.7%
-21.3%
Q4 24
-87.0%
-18.7%
Q3 24
-97.5%
-26.6%
Q2 24
-125.8%
-27.9%
Q1 24
-141.8%
-12.4%
EPS (diluted)
OM
OM
SST
SST
Q4 25
$0.33
$-3.58
Q3 25
$-1.00
$-2.30
Q2 25
$-1.04
$-2.23
Q1 25
$-3.66
$-0.21
Q4 24
$-7.21
$-3.41
Q3 24
$-8.02
$-3.37
Q2 24
$-9.96
$-3.80
Q1 24
$-11.77
$-0.16

Balance Sheet & Financial Strength

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

Metric
OM
OM
SST
SST
Cash + ST InvestmentsLiquidity on hand
$168.9M
$86.9M
Total DebtLower is stronger
$96.2M
$305.1M
Stockholders' EquityBook value
$127.0M
$30.5M
Total Assets
$264.5M
$405.0M
Debt / EquityLower = less leverage
0.76×
10.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
OM
OM
SST
SST
Q4 25
$168.9M
$86.9M
Q3 25
$178.6M
$54.6M
Q2 25
$184.1M
$63.6M
Q1 25
$189.0M
$43.9M
Q4 24
$158.7M
$63.6M
Q3 24
$175.6M
$69.1M
Q2 24
$194.8M
$75.7M
Q1 24
$226.9M
$69.9M
Total Debt
OM
OM
SST
SST
Q4 25
$96.2M
$305.1M
Q3 25
$259.2M
Q2 25
$263.3M
Q1 25
$267.4M
Q4 24
$197.4M
$255.1M
Q3 24
$259.2M
Q2 24
$263.3M
Q1 24
$268.6M
Stockholders' Equity
OM
OM
SST
SST
Q4 25
$127.0M
$30.5M
Q3 25
$142.4M
$42.7M
Q2 25
$154.8M
$58.2M
Q1 25
$169.9M
$67.2M
Q4 24
$26.8M
$80.3M
Q3 24
$47.8M
$90.3M
Q2 24
$68.6M
$109.4M
Q1 24
$93.2M
$131.7M
Total Assets
OM
OM
SST
SST
Q4 25
$264.5M
$405.0M
Q3 25
$277.3M
$385.2M
Q2 25
$288.8M
$429.2M
Q1 25
$301.2M
$419.2M
Q4 24
$275.8M
$459.1M
Q3 24
$292.9M
$479.3M
Q2 24
$314.5M
$511.3M
Q1 24
$346.2M
$521.1M
Debt / Equity
OM
OM
SST
SST
Q4 25
0.76×
10.01×
Q3 25
6.07×
Q2 25
4.53×
Q1 25
3.98×
Q4 24
7.36×
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
OM
OM
SST
SST
Operating Cash FlowLast quarter
$-9.5M
$-10.6M
Free Cash FlowOCF − Capex
$-9.7M
FCF MarginFCF / Revenue
-33.7%
Capex IntensityCapex / Revenue
0.8%
0.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-47.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
OM
OM
SST
SST
Q4 25
$-9.5M
$-10.6M
Q3 25
$-6.3M
$-2.1M
Q2 25
$-4.8M
$24.5M
Q1 25
$-25.7M
$-15.9M
Q4 24
$-16.5M
$772.0K
Q3 24
$-20.6M
$-5.0K
Q2 24
$-33.3M
$10.0M
Q1 24
$-45.9M
$-16.0M
Free Cash Flow
OM
OM
SST
SST
Q4 25
$-9.7M
Q3 25
$-6.5M
Q2 25
$-5.1M
Q1 25
$-25.8M
$-16.0M
Q4 24
$-16.5M
Q3 24
$-21.0M
$-36.0K
Q2 24
$-33.5M
Q1 24
$-46.3M
FCF Margin
OM
OM
SST
SST
Q4 25
-33.7%
Q3 25
-22.0%
Q2 25
-16.3%
Q1 25
-86.7%
-21.5%
Q4 24
-56.1%
Q3 24
-73.1%
-0.0%
Q2 24
-122.2%
Q1 24
-164.3%
Capex Intensity
OM
OM
SST
SST
Q4 25
0.8%
0.0%
Q3 25
0.5%
0.0%
Q2 25
0.9%
0.0%
Q1 25
0.4%
0.1%
Q4 24
0.1%
0.0%
Q3 24
1.4%
0.0%
Q2 24
0.4%
0.0%
Q1 24
1.3%
0.0%

Financial Flow Comparison

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

Revenue Breakdown by Segment

OM
OM

Consumables Product$13.5M47%
Service And Other Revenue$9.0M31%
Consoles Product$6.4M22%

SST
SST

Segment breakdown not available.

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