vs

Side-by-side financial comparison of System1, Inc. (SST) and UNITED STATES LIME & MINERALS INC (USLM). Click either name above to swap in a different company.

UNITED STATES LIME & MINERALS INC is the larger business by last-quarter revenue ($87.9M vs $51.9M, roughly 1.7× System1, Inc.). UNITED STATES LIME & MINERALS INC runs the higher net margin — 34.7% vs -26.0%, a 60.7% gap on every dollar of revenue. On growth, UNITED STATES LIME & MINERALS INC posted the faster year-over-year revenue change (9.8% vs -31.3%). Over the past eight quarters, UNITED STATES LIME & MINERALS INC's revenue compounded faster (10.8% CAGR vs -21.8%).

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.

United States Lime & Minerals Inc is a leading US-based natural resources enterprise that produces high-calcium lime, dolomitic lime, limestone and related mineral products. Its core client segments cover infrastructure construction, steel manufacturing, agricultural soil amendment, environmental emission control and industrial processing, serving customers across North America.

SST vs USLM — Head-to-Head

Bigger by revenue
USLM
USLM
1.7× larger
USLM
$87.9M
$51.9M
SST
Growing faster (revenue YoY)
USLM
USLM
+41.1% gap
USLM
9.8%
-31.3%
SST
Higher net margin
USLM
USLM
60.7% more per $
USLM
34.7%
-26.0%
SST
Faster 2-yr revenue CAGR
USLM
USLM
Annualised
USLM
10.8%
-21.8%
SST

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
SST
SST
USLM
USLM
Revenue
$51.9M
$87.9M
Net Profit
$-13.5M
$30.5M
Gross Margin
41.0%
48.0%
Operating Margin
-33.6%
41.0%
Net Margin
-26.0%
34.7%
Revenue YoY
-31.3%
9.8%
Net Profit YoY
4.8%
13.2%
EPS (diluted)
$-3.58
$1.06

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
SST
SST
USLM
USLM
Q4 25
$51.9M
$87.9M
Q3 25
$61.6M
$102.0M
Q2 25
$78.1M
$91.5M
Q1 25
$74.5M
$91.3M
Q4 24
$75.6M
$80.1M
Q3 24
$88.8M
$89.4M
Q2 24
$94.6M
$76.5M
Q1 24
$84.9M
$71.7M
Net Profit
SST
SST
USLM
USLM
Q4 25
$-13.5M
$30.5M
Q3 25
$-18.5M
$38.8M
Q2 25
$-17.5M
$30.8M
Q1 25
$-15.9M
$34.1M
Q4 24
$-14.2M
$27.0M
Q3 24
$-23.6M
$33.4M
Q2 24
$-26.4M
$26.1M
Q1 24
$-10.5M
$22.4M
Gross Margin
SST
SST
USLM
USLM
Q4 25
41.0%
48.0%
Q3 25
36.9%
51.2%
Q2 25
35.7%
45.8%
Q1 25
38.2%
50.6%
Q4 24
42.1%
44.3%
Q3 24
28.0%
48.2%
Q2 24
27.6%
45.5%
Q1 24
21.9%
42.7%
Operating Margin
SST
SST
USLM
USLM
Q4 25
-33.6%
41.0%
Q3 25
-25.3%
45.3%
Q2 25
-20.4%
39.0%
Q1 25
-17.6%
43.7%
Q4 24
-15.7%
38.8%
Q3 24
-24.6%
42.6%
Q2 24
-30.8%
39.1%
Q1 24
-30.4%
35.9%
Net Margin
SST
SST
USLM
USLM
Q4 25
-26.0%
34.7%
Q3 25
-30.1%
38.0%
Q2 25
-22.4%
33.7%
Q1 25
-21.3%
37.4%
Q4 24
-18.7%
33.7%
Q3 24
-26.6%
37.3%
Q2 24
-27.9%
34.0%
Q1 24
-12.4%
31.3%
EPS (diluted)
SST
SST
USLM
USLM
Q4 25
$-3.58
$1.06
Q3 25
$-2.30
$1.35
Q2 25
$-2.23
$1.07
Q1 25
$-0.21
$1.19
Q4 24
$-3.41
$-2.20
Q3 24
$-3.37
$1.16
Q2 24
$-3.80
$0.91
Q1 24
$-0.16
$3.92

Balance Sheet & Financial Strength

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

Metric
SST
SST
USLM
USLM
Cash + ST InvestmentsLiquidity on hand
$86.9M
$371.1M
Total DebtLower is stronger
$305.1M
$0
Stockholders' EquityBook value
$30.5M
$630.8M
Total Assets
$405.0M
$681.0M
Debt / EquityLower = less leverage
10.01×
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SST
SST
USLM
USLM
Q4 25
$86.9M
$371.1M
Q3 25
$54.6M
$349.5M
Q2 25
$63.6M
$319.9M
Q1 25
$43.9M
$300.6M
Q4 24
$63.6M
$278.0M
Q3 24
$69.1M
$255.0M
Q2 24
$75.7M
$222.5M
Q1 24
$69.9M
$207.0M
Total Debt
SST
SST
USLM
USLM
Q4 25
$305.1M
$0
Q3 25
$259.2M
$0
Q2 25
$263.3M
$0
Q1 25
$267.4M
$0
Q4 24
$255.1M
$0
Q3 24
$259.2M
$0
Q2 24
$263.3M
$0
Q1 24
$268.6M
$0
Stockholders' Equity
SST
SST
USLM
USLM
Q4 25
$30.5M
$630.8M
Q3 25
$42.7M
$602.3M
Q2 25
$58.2M
$563.3M
Q1 25
$67.2M
$532.2M
Q4 24
$80.3M
$497.7M
Q3 24
$90.3M
$474.2M
Q2 24
$109.4M
$441.1M
Q1 24
$131.7M
$415.3M
Total Assets
SST
SST
USLM
USLM
Q4 25
$405.0M
$681.0M
Q3 25
$385.2M
$652.8M
Q2 25
$429.2M
$607.4M
Q1 25
$419.2M
$585.3M
Q4 24
$459.1M
$543.2M
Q3 24
$479.3M
$521.8M
Q2 24
$511.3M
$484.2M
Q1 24
$521.1M
$464.0M
Debt / Equity
SST
SST
USLM
USLM
Q4 25
10.01×
0.00×
Q3 25
6.07×
0.00×
Q2 25
4.53×
0.00×
Q1 25
3.98×
0.00×
Q4 24
3.18×
0.00×
Q3 24
2.87×
0.00×
Q2 24
2.41×
0.00×
Q1 24
2.04×
0.00×

Cash Flow & Capital Efficiency

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

Metric
SST
SST
USLM
USLM
Operating Cash FlowLast quarter
$-10.6M
$45.6M
Free Cash FlowOCF − Capex
$25.7M
FCF MarginFCF / Revenue
29.2%
Capex IntensityCapex / Revenue
0.0%
22.6%
Cash ConversionOCF / Net Profit
1.49×
TTM Free Cash FlowTrailing 4 quarters
$102.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SST
SST
USLM
USLM
Q4 25
$-10.6M
$45.6M
Q3 25
$-2.1M
$45.9M
Q2 25
$24.5M
$34.0M
Q1 25
$-15.9M
$39.4M
Q4 24
$772.0K
$38.6M
Q3 24
$-5.0K
$39.0M
Q2 24
$10.0M
$21.2M
Q1 24
$-16.0M
$27.2M
Free Cash Flow
SST
SST
USLM
USLM
Q4 25
$25.7M
Q3 25
$31.3M
Q2 25
$20.8M
Q1 25
$-16.0M
$24.6M
Q4 24
$27.6M
Q3 24
$-36.0K
$33.9M
Q2 24
$16.8M
Q1 24
$20.3M
FCF Margin
SST
SST
USLM
USLM
Q4 25
29.2%
Q3 25
30.7%
Q2 25
22.7%
Q1 25
-21.5%
26.9%
Q4 24
34.4%
Q3 24
-0.0%
37.9%
Q2 24
21.9%
Q1 24
28.4%
Capex Intensity
SST
SST
USLM
USLM
Q4 25
0.0%
22.6%
Q3 25
0.0%
14.4%
Q2 25
0.0%
14.5%
Q1 25
0.1%
16.3%
Q4 24
0.0%
13.8%
Q3 24
0.0%
5.8%
Q2 24
0.0%
5.7%
Q1 24
0.0%
9.5%
Cash Conversion
SST
SST
USLM
USLM
Q4 25
1.49×
Q3 25
1.18×
Q2 25
1.10×
Q1 25
1.16×
Q4 24
1.43×
Q3 24
1.17×
Q2 24
0.81×
Q1 24
1.21×

Financial Flow Comparison

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

Related Comparisons