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Side-by-side financial comparison of STEM, INC. (STEM) and WESTAMERICA BANCORPORATION (WABC). Click either name above to swap in a different company.

WESTAMERICA BANCORPORATION is the larger business by last-quarter revenue ($63.3M vs $47.1M, roughly 1.3× STEM, INC.). WESTAMERICA BANCORPORATION runs the higher net margin — 43.9% vs -33.9%, a 77.8% gap on every dollar of revenue. On growth, WESTAMERICA BANCORPORATION posted the faster year-over-year revenue change (-9.0% vs -15.6%). Over the past eight quarters, STEM, INC.'s revenue compounded faster (36.1% CAGR vs -8.6%).

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.

Westamerica Bancorporation is a regional bank holding company headquartered in California, U.S. It operates via its wholly owned banking subsidiary to provide full-spectrum retail and commercial banking services, including deposit products, business and consumer loans, wealth management, and payment services, primarily serving individual consumers, SMEs and local institutional clients in northern and central California.

STEM vs WABC — Head-to-Head

Bigger by revenue
WABC
WABC
1.3× larger
WABC
$63.3M
$47.1M
STEM
Growing faster (revenue YoY)
WABC
WABC
+6.6% gap
WABC
-9.0%
-15.6%
STEM
Higher net margin
WABC
WABC
77.8% more per $
WABC
43.9%
-33.9%
STEM
Faster 2-yr revenue CAGR
STEM
STEM
Annualised
STEM
36.1%
-8.6%
WABC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
STEM
STEM
WABC
WABC
Revenue
$47.1M
$63.3M
Net Profit
$-16.0M
$27.8M
Gross Margin
48.9%
Operating Margin
-17.7%
59.8%
Net Margin
-33.9%
43.9%
Revenue YoY
-15.6%
-9.0%
Net Profit YoY
68.8%
-12.3%
EPS (diluted)
$-4.40
$1.12

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
WABC
WABC
Q4 25
$47.1M
$63.3M
Q3 25
$38.2M
$63.7M
Q2 25
$38.4M
$64.6M
Q1 25
$32.5M
$66.4M
Q4 24
$55.8M
$69.6M
Q3 24
$29.3M
$74.1M
Q2 24
$34.0M
$74.3M
Q1 24
$25.5M
$75.8M
Net Profit
STEM
STEM
WABC
WABC
Q4 25
$-16.0M
$27.8M
Q3 25
$-23.8M
$28.3M
Q2 25
$202.5M
$29.1M
Q1 25
$-25.0M
$31.0M
Q4 24
$-51.1M
$31.7M
Q3 24
$-148.3M
$35.1M
Q2 24
$-582.3M
$35.5M
Q1 24
$-72.3M
$36.4M
Gross Margin
STEM
STEM
WABC
WABC
Q4 25
48.9%
Q3 25
35.5%
Q2 25
33.4%
Q1 25
32.4%
Q4 24
-4.4%
Q3 24
21.2%
Q2 24
27.6%
Q1 24
-95.0%
Operating Margin
STEM
STEM
WABC
WABC
Q4 25
-17.7%
59.8%
Q3 25
-33.6%
59.5%
Q2 25
-34.8%
60.5%
Q1 25
-65.0%
63.0%
Q4 24
-84.4%
62.8%
Q3 24
-493.2%
64.5%
Q2 24
-1705.5%
64.8%
Q1 24
-267.0%
65.2%
Net Margin
STEM
STEM
WABC
WABC
Q4 25
-33.9%
43.9%
Q3 25
-62.2%
44.3%
Q2 25
527.8%
45.0%
Q1 25
-76.9%
46.7%
Q4 24
-91.6%
45.6%
Q3 24
-506.3%
47.3%
Q2 24
-1712.6%
47.8%
Q1 24
-283.9%
48.0%
EPS (diluted)
STEM
STEM
WABC
WABC
Q4 25
$-4.40
$1.12
Q3 25
$-2.84
$1.12
Q2 25
$-1.79
$1.12
Q1 25
$-0.15
$1.16
Q4 24
$-15.29
$1.19
Q3 24
$-18.24
$1.31
Q2 24
$-71.81
$1.33
Q1 24
$-0.46
$1.37

Balance Sheet & Financial Strength

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

Metric
STEM
STEM
WABC
WABC
Cash + ST InvestmentsLiquidity on hand
$48.9M
Total DebtLower is stronger
Stockholders' EquityBook value
$-249.4M
$933.5M
Total Assets
$308.9M
$6.0B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
STEM
STEM
WABC
WABC
Q4 25
$48.9M
Q3 25
$43.1M
Q2 25
$40.8M
Q1 25
$58.6M
Q4 24
$56.3M
Q3 24
$75.4M
Q2 24
$89.6M
Q1 24
$112.8M
Stockholders' Equity
STEM
STEM
WABC
WABC
Q4 25
$-249.4M
$933.5M
Q3 25
$-235.7M
$931.6M
Q2 25
$-214.1M
$921.8M
Q1 25
$-417.5M
$923.1M
Q4 24
$-398.4M
$890.0M
Q3 24
$-344.1M
$909.0M
Q2 24
$-203.2M
$815.6M
Q1 24
$371.6M
$791.7M
Total Assets
STEM
STEM
WABC
WABC
Q4 25
$308.9M
$6.0B
Q3 25
$362.6M
$5.9B
Q2 25
$379.2M
$5.8B
Q1 25
$405.1M
$6.0B
Q4 24
$437.4M
$6.1B
Q3 24
$537.8M
$6.2B
Q2 24
$691.5M
$6.3B
Q1 24
$1.3B
$6.5B

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
WABC
WABC
Operating Cash FlowLast quarter
$8.2M
$121.9M
Free Cash FlowOCF − Capex
$119.7M
FCF MarginFCF / Revenue
189.0%
Capex IntensityCapex / Revenue
3.5%
Cash ConversionOCF / Net Profit
4.38×
TTM Free Cash FlowTrailing 4 quarters
$213.4M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
STEM
STEM
WABC
WABC
Q4 25
$8.2M
$121.9M
Q3 25
$11.4M
$29.4M
Q2 25
$-21.3M
$23.5M
Q1 25
$8.5M
$42.4M
Q4 24
$-14.7M
$141.6M
Q3 24
$-9.4M
$40.6M
Q2 24
$-11.9M
$19.0M
Q1 24
$-621.0K
$52.2M
Free Cash Flow
STEM
STEM
WABC
WABC
Q4 25
$119.7M
Q3 25
$28.7M
Q2 25
$22.8M
Q1 25
$42.2M
Q4 24
$139.8M
Q3 24
$40.1M
Q2 24
$18.6M
Q1 24
$52.1M
FCF Margin
STEM
STEM
WABC
WABC
Q4 25
189.0%
Q3 25
45.1%
Q2 25
35.3%
Q1 25
63.5%
Q4 24
201.0%
Q3 24
54.1%
Q2 24
25.0%
Q1 24
68.7%
Capex Intensity
STEM
STEM
WABC
WABC
Q4 25
3.5%
Q3 25
1.1%
Q2 25
1.1%
Q1 25
0.3%
Q4 24
2.5%
Q3 24
0.7%
Q2 24
0.6%
Q1 24
0.2%
Cash Conversion
STEM
STEM
WABC
WABC
Q4 25
4.38×
Q3 25
1.04×
Q2 25
-0.11×
0.81×
Q1 25
1.37×
Q4 24
4.47×
Q3 24
1.16×
Q2 24
0.54×
Q1 24
1.43×

Financial Flow Comparison

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

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