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Side-by-side financial comparison of STEM, INC. (STEM) 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 $47.1M, roughly 1.9× STEM, INC.). UNITED STATES LIME & MINERALS INC runs the higher net margin — 34.7% vs -33.9%, a 68.6% gap on every dollar of revenue. On growth, UNITED STATES LIME & MINERALS INC posted the faster year-over-year revenue change (9.8% vs -15.6%). Over the past eight quarters, STEM, INC.'s revenue compounded faster (36.1% CAGR vs 10.8%).

StemCells, Inc. is a public biopharmaceutical company headquartered in Newark, California, that is developing purified human neural stem cells (HuCNS-SCs) in the hopes of treating central nervous system disorders and paralysis. StemCells' HuCNS-SCs have the ability to differentiate into the three main types of cells found in the central nervous system: neurons, astrocytes and oligodendrocytes.

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.

STEM vs USLM — Head-to-Head

Bigger by revenue
USLM
USLM
1.9× larger
USLM
$87.9M
$47.1M
STEM
Growing faster (revenue YoY)
USLM
USLM
+25.4% gap
USLM
9.8%
-15.6%
STEM
Higher net margin
USLM
USLM
68.6% more per $
USLM
34.7%
-33.9%
STEM
Faster 2-yr revenue CAGR
STEM
STEM
Annualised
STEM
36.1%
10.8%
USLM

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
STEM
STEM
USLM
USLM
Revenue
$47.1M
$87.9M
Net Profit
$-16.0M
$30.5M
Gross Margin
48.9%
48.0%
Operating Margin
-17.7%
41.0%
Net Margin
-33.9%
34.7%
Revenue YoY
-15.6%
9.8%
Net Profit YoY
68.8%
13.2%
EPS (diluted)
$-4.40
$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
STEM
STEM
USLM
USLM
Q4 25
$47.1M
$87.9M
Q3 25
$38.2M
$102.0M
Q2 25
$38.4M
$91.5M
Q1 25
$32.5M
$91.3M
Q4 24
$55.8M
$80.1M
Q3 24
$29.3M
$89.4M
Q2 24
$34.0M
$76.5M
Q1 24
$25.5M
$71.7M
Net Profit
STEM
STEM
USLM
USLM
Q4 25
$-16.0M
$30.5M
Q3 25
$-23.8M
$38.8M
Q2 25
$202.5M
$30.8M
Q1 25
$-25.0M
$34.1M
Q4 24
$-51.1M
$27.0M
Q3 24
$-148.3M
$33.4M
Q2 24
$-582.3M
$26.1M
Q1 24
$-72.3M
$22.4M
Gross Margin
STEM
STEM
USLM
USLM
Q4 25
48.9%
48.0%
Q3 25
35.5%
51.2%
Q2 25
33.4%
45.8%
Q1 25
32.4%
50.6%
Q4 24
-4.4%
44.3%
Q3 24
21.2%
48.2%
Q2 24
27.6%
45.5%
Q1 24
-95.0%
42.7%
Operating Margin
STEM
STEM
USLM
USLM
Q4 25
-17.7%
41.0%
Q3 25
-33.6%
45.3%
Q2 25
-34.8%
39.0%
Q1 25
-65.0%
43.7%
Q4 24
-84.4%
38.8%
Q3 24
-493.2%
42.6%
Q2 24
-1705.5%
39.1%
Q1 24
-267.0%
35.9%
Net Margin
STEM
STEM
USLM
USLM
Q4 25
-33.9%
34.7%
Q3 25
-62.2%
38.0%
Q2 25
527.8%
33.7%
Q1 25
-76.9%
37.4%
Q4 24
-91.6%
33.7%
Q3 24
-506.3%
37.3%
Q2 24
-1712.6%
34.0%
Q1 24
-283.9%
31.3%
EPS (diluted)
STEM
STEM
USLM
USLM
Q4 25
$-4.40
$1.06
Q3 25
$-2.84
$1.35
Q2 25
$-1.79
$1.07
Q1 25
$-0.15
$1.19
Q4 24
$-15.29
$-2.20
Q3 24
$-18.24
$1.16
Q2 24
$-71.81
$0.91
Q1 24
$-0.46
$3.92

Balance Sheet & Financial Strength

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

Metric
STEM
STEM
USLM
USLM
Cash + ST InvestmentsLiquidity on hand
$48.9M
$371.1M
Total DebtLower is stronger
$0
Stockholders' EquityBook value
$-249.4M
$630.8M
Total Assets
$308.9M
$681.0M
Debt / EquityLower = less leverage
0.00×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
STEM
STEM
USLM
USLM
Q4 25
$48.9M
$371.1M
Q3 25
$43.1M
$349.5M
Q2 25
$40.8M
$319.9M
Q1 25
$58.6M
$300.6M
Q4 24
$56.3M
$278.0M
Q3 24
$75.4M
$255.0M
Q2 24
$89.6M
$222.5M
Q1 24
$112.8M
$207.0M
Total Debt
STEM
STEM
USLM
USLM
Q4 25
$0
Q3 25
$0
Q2 25
$0
Q1 25
$0
Q4 24
$0
Q3 24
$0
Q2 24
$0
Q1 24
$0
Stockholders' Equity
STEM
STEM
USLM
USLM
Q4 25
$-249.4M
$630.8M
Q3 25
$-235.7M
$602.3M
Q2 25
$-214.1M
$563.3M
Q1 25
$-417.5M
$532.2M
Q4 24
$-398.4M
$497.7M
Q3 24
$-344.1M
$474.2M
Q2 24
$-203.2M
$441.1M
Q1 24
$371.6M
$415.3M
Total Assets
STEM
STEM
USLM
USLM
Q4 25
$308.9M
$681.0M
Q3 25
$362.6M
$652.8M
Q2 25
$379.2M
$607.4M
Q1 25
$405.1M
$585.3M
Q4 24
$437.4M
$543.2M
Q3 24
$537.8M
$521.8M
Q2 24
$691.5M
$484.2M
Q1 24
$1.3B
$464.0M
Debt / Equity
STEM
STEM
USLM
USLM
Q4 25
0.00×
Q3 25
0.00×
Q2 25
0.00×
Q1 25
0.00×
Q4 24
0.00×
Q3 24
0.00×
Q2 24
0.00×
Q1 24
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
STEM
STEM
USLM
USLM
Operating Cash FlowLast quarter
$8.2M
$45.6M
Free Cash FlowOCF − Capex
$25.7M
FCF MarginFCF / Revenue
29.2%
Capex IntensityCapex / Revenue
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
STEM
STEM
USLM
USLM
Q4 25
$8.2M
$45.6M
Q3 25
$11.4M
$45.9M
Q2 25
$-21.3M
$34.0M
Q1 25
$8.5M
$39.4M
Q4 24
$-14.7M
$38.6M
Q3 24
$-9.4M
$39.0M
Q2 24
$-11.9M
$21.2M
Q1 24
$-621.0K
$27.2M
Free Cash Flow
STEM
STEM
USLM
USLM
Q4 25
$25.7M
Q3 25
$31.3M
Q2 25
$20.8M
Q1 25
$24.6M
Q4 24
$27.6M
Q3 24
$33.9M
Q2 24
$16.8M
Q1 24
$20.3M
FCF Margin
STEM
STEM
USLM
USLM
Q4 25
29.2%
Q3 25
30.7%
Q2 25
22.7%
Q1 25
26.9%
Q4 24
34.4%
Q3 24
37.9%
Q2 24
21.9%
Q1 24
28.4%
Capex Intensity
STEM
STEM
USLM
USLM
Q4 25
22.6%
Q3 25
14.4%
Q2 25
14.5%
Q1 25
16.3%
Q4 24
13.8%
Q3 24
5.8%
Q2 24
5.7%
Q1 24
9.5%
Cash Conversion
STEM
STEM
USLM
USLM
Q4 25
1.49×
Q3 25
1.18×
Q2 25
-0.11×
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.

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