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Proto Labs Inc (PRLB) Stock Fundamental Analysis & AI Rating 2026

PRLB NYSE Fabricated Structural Metal Products MN CIK: 0001443669
Recently Updated • Analysis: Apr 14, 2026 • SEC Data: 2025-12-31
HOLD
72% Conf
Pending
Analysis scheduled

📊 PRLB Key Takeaways

Revenue: $533.1M
Net Margin: 4.0%
Free Cash Flow: $59.7M
Current Ratio: 3.49x
Debt/Equity: 0.00x
EPS: $0.88
AI Rating: HOLD with 72% confidence
Proto Labs Inc (PRLB) receives a HOLD rating with 72% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $533.1M, net profit margin of 4.0%, and return on equity (ROE) of 3.2%, Proto Labs Inc demonstrates mixed fundamentals in the Materials sector. Below is our complete PRLB stock analysis for 2026.

Is Proto Labs Inc (PRLB) a Good Investment?

Claude

Proto Labs demonstrates fortress-like financial health with zero meaningful debt, excellent liquidity, and strong free cash flow generation ($59.7M), yet is hampered by thin operating margins (4.7%) and minimal returns on capital (ROE 3.2%, ROA 2.8%), suggesting operational inefficiencies despite healthy 44.5% gross margins. The company's moderate 6.4% revenue growth and capital intensity in a competitive fabricated metal products industry limit visibility to sustainable profit expansion.

Why Buy Proto Labs Inc Stock? PRLB Key Strengths

Claude
  • + Pristine balance sheet with negligible debt ($149K long-term debt) and 0.00x debt-to-equity ratio, providing maximum financial flexibility
  • + Exceptional liquidity with 3.49x current ratio and 3.27x quick ratio plus $110.8M cash position
  • + Strong free cash flow generation of $59.7M representing 11.2% FCF margin, indicating high-quality earnings conversion
  • + Healthy gross margin of 44.5% demonstrates competitive positioning and cost control at product level
  • + 33.3% YoY EPS growth showing effective capital management and shareholder value creation

PRLB Stock Risks: Proto Labs Inc Investment Risks

Claude
  • ! Thin operating (4.7%) and net margins (4.0%) indicate operational challenges or competitive pricing pressure in manufacturing
  • ! Very low returns on capital (ROE 3.2%, ROA 2.8%) suggest significant excess capital not being deployed productively
  • ! Moderate 6.4% YoY revenue growth may constrain profit expansion and sustainability of EPS growth momentum
  • ! SIC 3440 (Fabricated Structural Metal Products) operates in cyclical, capital-intensive, commodity-like industry with secular headwinds

Key Metrics to Watch

Claude
  • * Operating margin trajectory - expansion critical to justify asset base
  • * Revenue growth acceleration needed to improve operating leverage
  • * ROE/ROA improvement demonstrating more efficient capital deployment
  • * Free cash flow sustainability and working capital management
  • * Gross margin maintenance amid competitive and input cost pressures

Proto Labs Inc (PRLB) Financial Metrics & Key Ratios

Revenue
$533.1M
Net Income
$21.2M
EPS (Diluted)
$0.88
Free Cash Flow
$59.7M
Total Assets
$763.4M
Cash Position
$110.8M

💡 AI Analyst Insight

Strong liquidity with a 3.49x current ratio provides a solid financial cushion.

PRLB Profit Margin, ROE & Profitability Analysis

Gross Margin 44.5%
Operating Margin 4.7%
Net Margin 4.0%
ROE 3.2%
ROA 2.8%
FCF Margin 11.2%

PRLB vs Materials Sector: How Proto Labs Inc Compares

How Proto Labs Inc compares to Materials sector averages

Net Margin
PRLB 4.0%
vs
Sector Avg 10.0%
PRLB Sector
ROE
PRLB 3.2%
vs
Sector Avg 14.0%
PRLB Sector
Current Ratio
PRLB 3.5x
vs
Sector Avg 1.6x
PRLB Sector
Debt/Equity
PRLB 0.0x
vs
Sector Avg 0.6x
PRLB Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Proto Labs Inc Stock Overvalued? PRLB Valuation Analysis 2026

Based on fundamental analysis, Proto Labs Inc has mixed fundamental signals relative to the Materials sector in 2026.

Return on Equity
3.2%
Sector avg: 14%
Net Profit Margin
4.0%
Sector avg: 10%
Revenue Growth
N/A
Year-over-year
Debt/Equity
0.00x
Sector avg: 0.6x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Proto Labs Inc Balance Sheet: PRLB Debt, Cash & Liquidity

Current Ratio
3.49x
Quick Ratio
3.27x
Debt/Equity
0.00x
Debt/Assets
11.7%
Interest Coverage
N/A
Long-term Debt
$149.0K

PRLB Revenue & Earnings Growth: 5-Year Financial Trend

PRLB 5-year financial data: Year 2021: Revenue $488.1M, Net Income $63.7M, EPS $2.35. Year 2022: Revenue $488.4M, Net Income $50.9M, EPS $1.89. Year 2023: Revenue $503.9M, Net Income $33.4M, EPS $1.21. Year 2024: Revenue $503.9M, Net Income -$103.5M, EPS $-3.77. Year 2025: Revenue $533.1M, Net Income $17.2M, EPS $0.66.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Proto Labs Inc's revenue has shown modest growth of 9% over the 5-year period. The most recent EPS of $0.66 reflects profitable operations.

PRLB Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
11.2%
Free cash flow / Revenue

PRLB Quarterly Earnings & Performance

Quarterly financial performance data for Proto Labs Inc including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q3 2025 $125.6M $3.6M $0.29
Q2 2025 $125.6M $3.6M $0.18
Q1 2025 $126.2M $3.6M $0.15
Q3 2024 $125.6M -$383.0K $0.29
Q2 2024 $122.3M -$383.0K $-0.01
Q1 2024 $125.9M $2.7M $0.10
Q3 2023 $121.7M -$383.0K $0.14
Q2 2023 $122.3M -$383.0K $-0.01

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Proto Labs Inc Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$74.5M
Cash generated from operations
Stock Buybacks
$43.0M
Shares repurchased (TTM)
Capital Expenditures
$14.8M
Investment in assets
Dividends
None
No dividend program

PRLB SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Proto Labs Inc (CIK: 0001443669)

📋 Recent SEC Filings

Date Form Document Action
Apr 8, 2026 DEF 14A prlb-20260407.htm View →
Feb 27, 2026 4 xslF345X05/wk-form4_1772227016.xml View →
Feb 27, 2026 4 xslF345X05/wk-form4_1772226994.xml View →
Feb 27, 2026 4 xslF345X05/wk-form4_1772226970.xml View →
Feb 27, 2026 4 xslF345X05/wk-form4_1772226945.xml View →

Frequently Asked Questions about PRLB

What is the AI rating for PRLB?

Proto Labs Inc (PRLB) has an AI rating of HOLD with 72% confidence, based on fundamental analysis of SEC EDGAR filings.

What are PRLB's key strengths?

Claude: Pristine balance sheet with negligible debt ($149K long-term debt) and 0.00x debt-to-equity ratio, providing maximum financial flexibility. Exceptional liquidity with 3.49x current ratio and 3.27x quick ratio plus $110.8M cash position.

What are the risks of investing in PRLB?

Claude: Thin operating (4.7%) and net margins (4.0%) indicate operational challenges or competitive pricing pressure in manufacturing. Very low returns on capital (ROE 3.2%, ROA 2.8%) suggest significant excess capital not being deployed productively.

What is PRLB's revenue and growth?

Proto Labs Inc reported revenue of $533.1M.

Does PRLB pay dividends?

Proto Labs Inc does not currently pay dividends.

Where can I find PRLB SEC filings?

Official SEC filings for Proto Labs Inc (CIK: 0001443669) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is PRLB's EPS?

Proto Labs Inc has a diluted EPS of $0.88.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is PRLB a good stock to buy right now?

Based on our AI fundamental analysis in April 2026, Proto Labs Inc has a HOLD rating with 72% confidence. Review the strengths and risks sections above before making a decision. This is not investment advice.

Is PRLB stock overvalued or undervalued?

Valuation metrics for PRLB: ROE of 3.2% (sector avg: 14%), net margin of 4.0% (sector avg: 10%). Compare these metrics with sector averages to assess valuation.

Should I buy PRLB stock in 2026?

Our dual AI analysis gives Proto Labs Inc a combined HOLD rating for 2026. Revenue is data pending, with profitability at or below sector average. Always conduct your own research.

What is PRLB's free cash flow?

Proto Labs Inc's operating cash flow is $74.5M, with capital expenditures of $14.8M. FCF margin is 11.2%.

How does PRLB compare to other Materials stocks?

Vs Materials sector averages: Net margin 4.0% (avg: 10%), ROE 3.2% (avg: 14%), current ratio 3.49 (avg: 1.6).

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: Apr 14, 2026 | Data as of: 2025-12-31 | Powered by Claude AI