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Side-by-side financial comparison of CASTLE BIOSCIENCES INC (CSTL) and VEECO INSTRUMENTS INC (VECO). Click either name above to swap in a different company.

VEECO INSTRUMENTS INC is the larger business by last-quarter revenue ($165.0M vs $83.7M, roughly 2.0× CASTLE BIOSCIENCES INC). VEECO INSTRUMENTS INC runs the higher net margin — 0.7% vs -17.4%, a 18.0% gap on every dollar of revenue. On growth, CASTLE BIOSCIENCES INC posted the faster year-over-year revenue change (-4.9% vs -9.4%). Over the past eight quarters, CASTLE BIOSCIENCES INC's revenue compounded faster (-1.9% CAGR vs -2.8%).

Castle Biosciences Inc. is a commercial-stage diagnostic firm that develops and markets proprietary, clinically actionable tests for dermatological conditions such as melanoma and other skin cancers, plus rare diseases. It operates mainly in the U.S. healthcare market, focusing on segments with high unmet need for more accurate diagnostics to guide treatment choices.

Veeco Instruments Inc. is a global capital equipment supplier, headquartered in the U.S., that designs and builds processing systems used in semiconductor and compound semiconductor manufacturing, data storage and scientific markets for applications such as advanced packaging, photonics, power electronics and display technologies.

CSTL vs VECO — Head-to-Head

Bigger by revenue
VECO
VECO
2.0× larger
VECO
$165.0M
$83.7M
CSTL
Growing faster (revenue YoY)
CSTL
CSTL
+4.5% gap
CSTL
-4.9%
-9.4%
VECO
Higher net margin
VECO
VECO
18.0% more per $
VECO
0.7%
-17.4%
CSTL
Faster 2-yr revenue CAGR
CSTL
CSTL
Annualised
CSTL
-1.9%
-2.8%
VECO

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
CSTL
CSTL
VECO
VECO
Revenue
$83.7M
$165.0M
Net Profit
$-14.5M
$1.1M
Gross Margin
36.7%
Operating Margin
-0.8%
Net Margin
-17.4%
0.7%
Revenue YoY
-4.9%
-9.4%
Net Profit YoY
43.8%
-92.6%
EPS (diluted)
$-0.49
$0.02

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
CSTL
CSTL
VECO
VECO
Q1 26
$83.7M
Q4 25
$87.0M
$165.0M
Q3 25
$83.0M
$165.9M
Q2 25
$86.2M
$166.1M
Q1 25
$88.0M
$167.3M
Q4 24
$86.3M
$182.1M
Q3 24
$85.8M
$184.8M
Q2 24
$87.0M
$175.9M
Net Profit
CSTL
CSTL
VECO
VECO
Q1 26
$-14.5M
Q4 25
$1.1M
Q3 25
$-501.0K
$10.6M
Q2 25
$4.5M
$11.7M
Q1 25
$-25.8M
$11.9M
Q4 24
$15.0M
Q3 24
$2.3M
$22.0M
Q2 24
$8.9M
$14.9M
Gross Margin
CSTL
CSTL
VECO
VECO
Q1 26
Q4 25
79.0%
36.7%
Q3 25
77.5%
40.8%
Q2 25
79.5%
41.4%
Q1 25
81.4%
40.9%
Q4 24
81.3%
40.6%
Q3 24
81.8%
42.9%
Q2 24
83.3%
42.9%
Operating Margin
CSTL
CSTL
VECO
VECO
Q1 26
Q4 25
-4.4%
-0.8%
Q3 25
-8.2%
6.4%
Q2 25
-4.9%
7.4%
Q1 25
-31.7%
8.5%
Q4 24
4.7%
2.1%
Q3 24
5.9%
13.2%
Q2 24
5.8%
9.5%
Net Margin
CSTL
CSTL
VECO
VECO
Q1 26
-17.4%
Q4 25
0.7%
Q3 25
-0.6%
6.4%
Q2 25
5.2%
7.1%
Q1 25
-29.4%
7.1%
Q4 24
8.2%
Q3 24
2.6%
11.9%
Q2 24
10.3%
8.5%
EPS (diluted)
CSTL
CSTL
VECO
VECO
Q1 26
$-0.49
Q4 25
$-0.06
$0.02
Q3 25
$-0.02
$0.17
Q2 25
$0.15
$0.20
Q1 25
$-0.90
$0.20
Q4 24
$0.32
$0.25
Q3 24
$0.08
$0.36
Q2 24
$0.31
$0.25

Balance Sheet & Financial Strength

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

Metric
CSTL
CSTL
VECO
VECO
Cash + ST InvestmentsLiquidity on hand
$63.8M
$163.5M
Total DebtLower is stronger
$10.1M
$226.0M
Stockholders' EquityBook value
$461.4M
$885.5M
Total Assets
$547.8M
$1.3B
Debt / EquityLower = less leverage
0.02×
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSTL
CSTL
VECO
VECO
Q1 26
$63.8M
Q4 25
$299.5M
$163.5M
Q3 25
$287.5M
$193.2M
Q2 25
$275.9M
$188.9M
Q1 25
$275.2M
$174.9M
Q4 24
$293.1M
$145.6M
Q3 24
$95.0M
$163.2M
Q2 24
$85.6M
$174.2M
Total Debt
CSTL
CSTL
VECO
VECO
Q1 26
$10.1M
Q4 25
$10.1M
$226.0M
Q3 25
$10.0M
$225.7M
Q2 25
$10.0M
$225.4M
Q1 25
$10.0M
$250.0M
Q4 24
$10.0M
$276.2M
Q3 24
$10.0M
$275.9M
Q2 24
$10.0M
$275.6M
Stockholders' Equity
CSTL
CSTL
VECO
VECO
Q1 26
$461.4M
Q4 25
$470.9M
$885.5M
Q3 25
$467.0M
$876.0M
Q2 25
$455.4M
$856.2M
Q1 25
$440.3M
$811.9M
Q4 24
$455.8M
$770.8M
Q3 24
$441.1M
$746.5M
Q2 24
$423.9M
$715.0M
Total Assets
CSTL
CSTL
VECO
VECO
Q1 26
$547.8M
Q4 25
$578.6M
$1.3B
Q3 25
$562.8M
$1.3B
Q2 25
$544.7M
$1.3B
Q1 25
$501.7M
$1.3B
Q4 24
$531.2M
$1.3B
Q3 24
$514.6M
$1.3B
Q2 24
$487.3M
$1.2B
Debt / Equity
CSTL
CSTL
VECO
VECO
Q1 26
0.02×
Q4 25
0.02×
0.26×
Q3 25
0.02×
0.26×
Q2 25
0.02×
0.26×
Q1 25
0.02×
0.31×
Q4 24
0.02×
0.36×
Q3 24
0.02×
0.37×
Q2 24
0.02×
0.39×

Cash Flow & Capital Efficiency

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

Metric
CSTL
CSTL
VECO
VECO
Operating Cash FlowLast quarter
$-22.1M
$24.9M
Free Cash FlowOCF − Capex
$21.7M
FCF MarginFCF / Revenue
13.1%
Capex IntensityCapex / Revenue
2.0%
Cash ConversionOCF / Net Profit
22.38×
TTM Free Cash FlowTrailing 4 quarters
$53.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSTL
CSTL
VECO
VECO
Q1 26
$-22.1M
Q4 25
$26.9M
$24.9M
Q3 25
$22.6M
$15.5M
Q2 25
$20.8M
$9.0M
Q1 25
$-6.0M
$20.0M
Q4 24
$24.4M
$28.4M
Q3 24
$23.3M
$17.6M
Q2 24
$24.0M
$8.5M
Free Cash Flow
CSTL
CSTL
VECO
VECO
Q1 26
Q4 25
$19.7M
$21.7M
Q3 25
$7.8M
$13.0M
Q2 25
$11.6M
$5.4M
Q1 25
$-10.8M
$13.2M
Q4 24
$16.8M
$23.2M
Q3 24
$17.0M
$13.6M
Q2 24
$18.8M
$5.5M
FCF Margin
CSTL
CSTL
VECO
VECO
Q1 26
Q4 25
22.7%
13.1%
Q3 25
9.4%
7.8%
Q2 25
13.4%
3.3%
Q1 25
-12.2%
7.9%
Q4 24
19.5%
12.7%
Q3 24
19.8%
7.4%
Q2 24
21.6%
3.1%
Capex Intensity
CSTL
CSTL
VECO
VECO
Q1 26
Q4 25
8.3%
2.0%
Q3 25
17.9%
1.6%
Q2 25
10.7%
2.2%
Q1 25
5.4%
4.0%
Q4 24
8.8%
2.8%
Q3 24
7.4%
2.2%
Q2 24
6.0%
1.7%
Cash Conversion
CSTL
CSTL
VECO
VECO
Q1 26
Q4 25
22.38×
Q3 25
1.47×
Q2 25
4.60×
0.77×
Q1 25
1.67×
Q4 24
1.90×
Q3 24
10.29×
0.80×
Q2 24
2.69×
0.57×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CSTL
CSTL

Segment breakdown not available.

VECO
VECO

Asia Pacific Excluding China$89.9M54%
Other$44.8M27%
Compound Semiconductor$20.1M12%
Data Storage$10.2M6%

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