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Side-by-side financial comparison of FS Bancorp, Inc. (FSBW) and Pulmonx Corp (LUNG). Click either name above to swap in a different company.

FS Bancorp, Inc. is the larger business by last-quarter revenue ($40.0M vs $20.6M, roughly 1.9× Pulmonx Corp). On growth, FS Bancorp, Inc. posted the faster year-over-year revenue change (12.0% vs -8.7%). Over the past eight quarters, FS Bancorp, Inc.'s revenue compounded faster (6.2% CAGR vs -0.5%).

FS Bancorp, Inc. is a U.S.-headquartered bank holding company that serves as the parent of 1st Security Bank of Washington. It offers a full range of personal and commercial banking solutions including deposit products, mortgage loans, small business financing and construction loans, primarily catering to customers in the Pacific Northwest, with core segments covering retail banking, commercial banking and residential lending.

Pulmonx Corp is a global medical tech firm focused on interventional pulmonology solutions. It develops minimally invasive endobronchial valves to treat severe COPD and emphysema, with products sold across North America, Europe, and Asia-Pacific for patients with advanced lung conditions.

FSBW vs LUNG — Head-to-Head

Bigger by revenue
FSBW
FSBW
1.9× larger
FSBW
$40.0M
$20.6M
LUNG
Growing faster (revenue YoY)
FSBW
FSBW
+20.7% gap
FSBW
12.0%
-8.7%
LUNG
Faster 2-yr revenue CAGR
FSBW
FSBW
Annualised
FSBW
6.2%
-0.5%
LUNG

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
FSBW
FSBW
LUNG
LUNG
Revenue
$40.0M
$20.6M
Net Profit
$-13.7M
Gross Margin
77.9%
Operating Margin
25.8%
-40.9%
Net Margin
-66.3%
Revenue YoY
12.0%
-8.7%
Net Profit YoY
5.5%
EPS (diluted)
$1.11
$-0.33

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
FSBW
FSBW
LUNG
LUNG
Q1 26
$20.6M
Q4 25
$40.0M
$22.6M
Q3 25
$39.3M
$21.5M
Q2 25
$37.3M
$23.9M
Q1 25
$36.1M
$22.5M
Q4 24
$35.7M
$23.8M
Q3 24
$37.2M
$20.4M
Q2 24
$36.3M
$20.8M
Net Profit
FSBW
FSBW
LUNG
LUNG
Q1 26
$-13.7M
Q4 25
$-10.4M
Q3 25
$9.2M
$-14.0M
Q2 25
$7.7M
$-15.2M
Q1 25
$8.0M
$-14.4M
Q4 24
$-13.2M
Q3 24
$10.3M
$-14.1M
Q2 24
$9.0M
$-15.3M
Gross Margin
FSBW
FSBW
LUNG
LUNG
Q1 26
77.9%
Q4 25
77.6%
Q3 25
74.7%
Q2 25
72.1%
Q1 25
72.5%
Q4 24
74.0%
Q3 24
73.7%
Q2 24
73.7%
Operating Margin
FSBW
FSBW
LUNG
LUNG
Q1 26
-40.9%
Q4 25
25.8%
-43.8%
Q3 25
29.5%
-66.9%
Q2 25
26.2%
-62.0%
Q1 25
26.2%
-64.6%
Q4 24
27.6%
-56.5%
Q3 24
26.5%
-69.3%
Q2 24
31.3%
-75.2%
Net Margin
FSBW
FSBW
LUNG
LUNG
Q1 26
-66.3%
Q4 25
-46.1%
Q3 25
23.4%
-64.9%
Q2 25
20.7%
-63.6%
Q1 25
22.2%
-64.1%
Q4 24
-55.4%
Q3 24
27.6%
-69.4%
Q2 24
24.7%
-73.7%
EPS (diluted)
FSBW
FSBW
LUNG
LUNG
Q1 26
$-0.33
Q4 25
$1.11
$-0.25
Q3 25
$1.18
$-0.34
Q2 25
$0.99
$-0.38
Q1 25
$1.01
$-0.36
Q4 24
$0.88
$-0.33
Q3 24
$1.29
$-0.36
Q2 24
$1.13
$-0.39

Balance Sheet & Financial Strength

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

Metric
FSBW
FSBW
LUNG
LUNG
Cash + ST InvestmentsLiquidity on hand
$28.2M
$61.6M
Total DebtLower is stronger
$37.3M
Stockholders' EquityBook value
$307.7M
$45.8M
Total Assets
$3.2B
$120.0M
Debt / EquityLower = less leverage
0.82×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FSBW
FSBW
LUNG
LUNG
Q1 26
$61.6M
Q4 25
$28.2M
$69.8M
Q3 25
$61.3M
$76.5M
Q2 25
$33.2M
$75.5M
Q1 25
$62.7M
$74.6M
Q4 24
$31.6M
$70.9M
Q3 24
$40.3M
$63.3M
Q2 24
$33.0M
$63.5M
Total Debt
FSBW
FSBW
LUNG
LUNG
Q1 26
$37.3M
Q4 25
$37.1M
Q3 25
$37.1M
Q2 25
$37.1M
Q1 25
$37.2M
Q4 24
$37.2M
Q3 24
$37.2M
Q2 24
$37.2M
Stockholders' Equity
FSBW
FSBW
LUNG
LUNG
Q1 26
$45.8M
Q4 25
$307.7M
$54.1M
Q3 25
$300.5M
$60.0M
Q2 25
$297.2M
$69.1M
Q1 25
$298.8M
$77.7M
Q4 24
$295.8M
$85.8M
Q3 24
$288.9M
$93.9M
Q2 24
$284.0M
$101.2M
Total Assets
FSBW
FSBW
LUNG
LUNG
Q1 26
$120.0M
Q4 25
$3.2B
$129.3M
Q3 25
$3.2B
$138.3M
Q2 25
$3.2B
$147.2M
Q1 25
$3.1B
$150.7M
Q4 24
$3.0B
$162.8M
Q3 24
$3.0B
$167.4M
Q2 24
$2.9B
$172.6M
Debt / Equity
FSBW
FSBW
LUNG
LUNG
Q1 26
0.82×
Q4 25
0.69×
Q3 25
0.62×
Q2 25
0.54×
Q1 25
0.48×
Q4 24
0.43×
Q3 24
0.40×
Q2 24
0.37×

Cash Flow & Capital Efficiency

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

Metric
FSBW
FSBW
LUNG
LUNG
Operating Cash FlowLast quarter
$72.3M
Free Cash FlowOCF − Capex
$51.9M
FCF MarginFCF / Revenue
129.8%
Capex IntensityCapex / Revenue
50.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$107.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FSBW
FSBW
LUNG
LUNG
Q1 26
Q4 25
$72.3M
$-7.1M
Q3 25
$44.6M
$-8.2M
Q2 25
$7.1M
$-3.9M
Q1 25
$8.2M
$-13.2M
Q4 24
$50.8M
$-6.7M
Q3 24
$-891.0K
$-7.2M
Q2 24
$9.9M
$-5.8M
Free Cash Flow
FSBW
FSBW
LUNG
LUNG
Q1 26
Q4 25
$51.9M
$-7.1M
Q3 25
$41.6M
$-8.3M
Q2 25
$5.9M
$-4.0M
Q1 25
$7.8M
$-13.5M
Q4 24
$49.2M
$-6.8M
Q3 24
$-1.5M
$-7.7M
Q2 24
$9.6M
$-6.2M
FCF Margin
FSBW
FSBW
LUNG
LUNG
Q1 26
Q4 25
129.8%
-31.4%
Q3 25
105.9%
-38.4%
Q2 25
15.7%
-16.6%
Q1 25
21.7%
-60.0%
Q4 24
137.7%
-28.8%
Q3 24
-4.1%
-37.6%
Q2 24
26.6%
-30.0%
Capex Intensity
FSBW
FSBW
LUNG
LUNG
Q1 26
Q4 25
50.9%
0.1%
Q3 25
7.7%
0.4%
Q2 25
3.5%
0.2%
Q1 25
1.0%
1.3%
Q4 24
4.6%
0.5%
Q3 24
1.7%
2.0%
Q2 24
0.8%
2.3%
Cash Conversion
FSBW
FSBW
LUNG
LUNG
Q1 26
Q4 25
Q3 25
4.86×
Q2 25
0.92×
Q1 25
1.02×
Q4 24
Q3 24
-0.09×
Q2 24
1.11×

Financial Flow Comparison

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

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