Proto LabsWBO:PRLB +1.23%66 OCF Margin % is 12.59% as of Mar. 2026, which is 36% below its 10-year median of 19.64. GuruFocus rates WBO:PRLB with a GF Score™ of 66/100 and a GF Value™ of €37.76 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 3,033 Industrial Products companies, Proto Labs ranks better than 74.91% on this metric.
The historical rank and industry rank for Proto Labs's OCF Margin % or its related term are showing as below:
WBO:PRLB'
s OCF Margin % Range Over the Past 10 Years
Min: 11.32 Med: 19.64 Max: 27.59
Current: 13.46
During the past 13 years, the highest OCF Margin % of Proto Labs was 27.59%. The lowest was 11.32%. And the median was 19.64%.
WBO:PRLB's OCF Margin % is ranked better than 74.91% of 3033
companies
in the Industrial Products industry
Industry Median: 6.97
vs WBO:PRLB: 13.46
Proto Labs OCF Margin % Related Terms
Proto Labs OCF Margin % Historical Data
* Premium members only.
The historical data trend for Proto Labs's OCF Margin % can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
WBO:PRLB vs RYZ, WOR, MEC: OCF Margin % Comparison
For the Metal Fabrication subindustry, Proto Labs's OCF Margin %, along with its competitors' market caps and OCF Margin % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Proto Labs OCF Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Proto Labs's OCF Margin % distribution charts can be found below:
* The bar in red indicates where Proto Labs's OCF Margin % falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Proto Labs (WBO:PRLB) has a OCF Margin % of 12.59% as of Mar. 2026. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Proto Labs and its competitors. This is 36% below median its historical median of 19.64. Over the past decade, Proto Labs' OCF Margin % has ranged from 11.32 to 27.59. According to the industry distribution chart, Proto Labs ranks #761 out of 3033 companies in the Industrial Products industry, placing it in the top 25.1%.
Is Proto Labs' OCF Margin % too high?
Proto Labs' current OCF Margin % of 12.59% is 36% below median its 10-year median of 19.64. Over the past 10 years, this metric has ranged from a low of 11.32 to a high of 27.59. The Industrial Products industry median OCF Margin % is 6.97. Proto Labs' value of 12.59% is 80.6% above this industry median. Based on the distribution chart, Proto Labs ranks #761 out of 3033 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Proto Labs has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Proto Labs' OCF Margin % compare to RYZ and WOR?
According to the Industrial Products industry distribution chart, Proto Labs ranks #761 out of 3033 companies for OCF Margin %. This puts Proto Labs in the upper half of its industry. The industry median OCF Margin % is 6.97. Proto Labs' value of 12.59% is 80.6% above this benchmark. Historically, Proto Labs' own OCF Margin % has ranged from 11.32 to 27.59 over the past decade. While the company's 10-year median is 19.64 vs. the industry median of 6.97, Proto Labs has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Margin % for an Industrial Products company?
The median OCF Margin % among Industrial Products companies is 6.97, based on 3,033 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Proto Labs's current OCF Margin % of 12.59% is 80.6% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Proto Labs and its competitors. For the Industrial Products industry, the median OCF Margin % is 6.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Proto Labs's current OCF Margin % is 12.59%, which is 36% below median its own 10-year median of 19.64. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Proto Labs stock overvalued right now?
Based on GuruFocus' analysis, Proto Labs (WBO:PRLB) is currently considered Significantly Overvalued. The stock's GF Value™ is €37.76, compared to a current price of €65.65 — trading 73.9% above its estimated fair value. The current OCF Margin % is 12.59%, which is 36% below median its 10-year median of 19.64 and 80.6% above the Industrial Products industry median of 6.97. Proto Labs' overall GF Score™ is 66/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Proto Labs (WBO:PRLB), the current OCF Margin % is 12.59% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Proto Labs (WBO:PRLB) Overvalued in 2026?
Based on GuruFocus' analysis, Proto Labs stock appears to be overvalued.
The current stock price of €65.65 is trading 73.9% above its estimated GF Value™ of €37.76.
GuruFocus considers Proto Labs to be Significantly Overvalued.
Key valuation signals for WBO:PRLB:
OCF Margin %: 12.59% (36% below median its 10-year median of 19.64)
GF Value™: €37.76 vs. price of €65.65 (73.9% above fair value)
Industry Position: 80.6% above the Industrial Products median (#761 of 3033)
No single metric tells the full story. See the WBO:PRLB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Proto Labs Inc is an on-demand manufacturer of custom parts for prototyping and short-run production. The company offers developers and engineers quick-turn production services to reduce the time to market. The Lab uses injection molding, computer numerical control machining, and 3-D printing, and sheet metal to manufacture custom parts for its clients. The company services clients' needs for prototype solutions, parts for testing procedures, bridge production capabilities during disruptions in manufacturing processes, limited-quantity requests, and end-of-life production support. Geographically, a majority of the company's revenue is derived from the United States and the rest from Europe.
66GF Score
Get the complete analysis for WBO:PRLB
OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
WBO:PRLB has been successfully added to your 
