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Side-by-side financial comparison of SmartStop Self Storage REIT, Inc. (SMA) and STEM, INC. (STEM). Click either name above to swap in a different company.

SmartStop Self Storage REIT, Inc. is the larger business by last-quarter revenue ($78.4M vs $47.1M, roughly 1.7× STEM, INC.). SmartStop Self Storage REIT, Inc. runs the higher net margin — 3.8% vs -33.9%, a 37.7% gap on every dollar of revenue. On growth, SmartStop Self Storage REIT, Inc. posted the faster year-over-year revenue change (29.4% vs -15.6%). Over the past eight quarters, STEM, INC.'s revenue compounded faster (36.1% CAGR vs 17.3%).

SmartStop Self Storage REIT, Inc. is a real estate investment trust focused on owning, operating, and acquiring high-quality self-storage properties. Its portfolio covers multiple U.S. states and Canadian provinces, offering secure, flexible storage solutions for residential customers storing personal belongings and commercial clients storing inventory or seasonal goods.

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.

SMA vs STEM — Head-to-Head

Bigger by revenue
SMA
SMA
1.7× larger
SMA
$78.4M
$47.1M
STEM
Growing faster (revenue YoY)
SMA
SMA
+44.9% gap
SMA
29.4%
-15.6%
STEM
Higher net margin
SMA
SMA
37.7% more per $
SMA
3.8%
-33.9%
STEM
Faster 2-yr revenue CAGR
STEM
STEM
Annualised
STEM
36.1%
17.3%
SMA

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
SMA
SMA
STEM
STEM
Revenue
$78.4M
$47.1M
Net Profit
$3.0M
$-16.0M
Gross Margin
61.2%
48.9%
Operating Margin
24.0%
-17.7%
Net Margin
3.8%
-33.9%
Revenue YoY
29.4%
-15.6%
Net Profit YoY
2080.0%
68.8%
EPS (diluted)
$-4.40

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
SMA
SMA
STEM
STEM
Q4 25
$78.4M
$47.1M
Q3 25
$70.4M
$38.2M
Q2 25
$66.8M
$38.4M
Q1 25
$65.4M
$32.5M
Q4 24
$60.6M
$55.8M
Q3 24
$60.2M
$29.3M
Q2 24
$59.2M
$34.0M
Q1 24
$57.0M
$25.5M
Net Profit
SMA
SMA
STEM
STEM
Q4 25
$3.0M
$-16.0M
Q3 25
$5.2M
$-23.8M
Q2 25
$-4.8M
$202.5M
Q1 25
$-5.5M
$-25.0M
Q4 24
$-150.0K
$-51.1M
Q3 24
$-6.2M
$-148.3M
Q2 24
$-705.0K
$-582.3M
Q1 24
$-1.6M
$-72.3M
Gross Margin
SMA
SMA
STEM
STEM
Q4 25
61.2%
48.9%
Q3 25
60.9%
35.5%
Q2 25
59.3%
33.4%
Q1 25
64.1%
32.4%
Q4 24
66.3%
-4.4%
Q3 24
64.8%
21.2%
Q2 24
66.4%
27.6%
Q1 24
65.1%
-95.0%
Operating Margin
SMA
SMA
STEM
STEM
Q4 25
24.0%
-17.7%
Q3 25
18.1%
-33.6%
Q2 25
15.4%
-34.8%
Q1 25
26.3%
-65.0%
Q4 24
29.4%
-84.4%
Q3 24
29.4%
-493.2%
Q2 24
29.9%
-1705.5%
Q1 24
28.0%
-267.0%
Net Margin
SMA
SMA
STEM
STEM
Q4 25
3.8%
-33.9%
Q3 25
7.4%
-62.2%
Q2 25
-7.2%
527.8%
Q1 25
-8.3%
-76.9%
Q4 24
-0.2%
-91.6%
Q3 24
-10.3%
-506.3%
Q2 24
-1.2%
-1712.6%
Q1 24
-2.9%
-283.9%
EPS (diluted)
SMA
SMA
STEM
STEM
Q4 25
$-4.40
Q3 25
$0.09
$-2.84
Q2 25
$-0.16
$-1.79
Q1 25
$-0.35
$-0.15
Q4 24
$-15.29
Q3 24
$-0.26
$-18.24
Q2 24
$-0.16
$-71.81
Q1 24
$-0.20
$-0.46

Balance Sheet & Financial Strength

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

Metric
SMA
SMA
STEM
STEM
Cash + ST InvestmentsLiquidity on hand
$54.2M
$48.9M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.2B
$-249.4M
Total Assets
$2.4B
$308.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SMA
SMA
STEM
STEM
Q4 25
$54.2M
$48.9M
Q3 25
$47.8M
$43.1M
Q2 25
$37.7M
$40.8M
Q1 25
$35.2M
$58.6M
Q4 24
$23.1M
$56.3M
Q3 24
$36.7M
$75.4M
Q2 24
$34.7M
$89.6M
Q1 24
$39.2M
$112.8M
Stockholders' Equity
SMA
SMA
STEM
STEM
Q4 25
$1.2B
$-249.4M
Q3 25
$1.2B
$-235.7M
Q2 25
$1.2B
$-214.1M
Q1 25
$303.0M
$-417.5M
Q4 24
$325.7M
$-398.4M
Q3 24
$343.9M
$-344.1M
Q2 24
$365.8M
$-203.2M
Q1 24
$384.8M
$371.6M
Total Assets
SMA
SMA
STEM
STEM
Q4 25
$2.4B
$308.9M
Q3 25
$2.4B
$362.6M
Q2 25
$2.3B
$379.2M
Q1 25
$2.1B
$405.1M
Q4 24
$2.0B
$437.4M
Q3 24
$1.9B
$537.8M
Q2 24
$1.9B
$691.5M
Q1 24
$1.9B
$1.3B

Cash Flow & Capital Efficiency

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

Metric
SMA
SMA
STEM
STEM
Operating Cash FlowLast quarter
$85.0M
$8.2M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
28.61×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SMA
SMA
STEM
STEM
Q4 25
$85.0M
$8.2M
Q3 25
$52.1M
$11.4M
Q2 25
$8.0M
$-21.3M
Q1 25
$10.6M
$8.5M
Q4 24
$64.0M
$-14.7M
Q3 24
$21.7M
$-9.4M
Q2 24
$17.3M
$-11.9M
Q1 24
$14.4M
$-621.0K
Cash Conversion
SMA
SMA
STEM
STEM
Q4 25
28.61×
Q3 25
9.96×
Q2 25
-0.11×
Q1 25
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

SMA
SMA

Self Storage Rental Revenue$62.0M79%
Other$11.9M15%
Ancillary Operating Revenue$2.9M4%
Asset Management1$1.7M2%

STEM
STEM

Segment breakdown not available.

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