Proto LabsWBO:PRLB -0.30%68 3-Year ROIIC % is 10.16 as of Dec. 2025, which is 141% above its 10-year median of 4.22. GuruFocus rates WBO:PRLB with a GF Score™ of 68/100 and a GF Value™ of €38.65 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 2,937 Industrial Products companies, Proto Labs ranks better than 62.04% on this metric.
3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year.
Proto Labs's 3-Year ROIIC % for the quarter that ended in Dec. 2025 was 10.16%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
The industry rank for Proto Labs's 3-Year ROIIC % or its related term are showing as below:
WBO:PRLB's 3-Year ROIIC % is ranked better than 62.04% of 2937
companies
in the Industrial Products industry
Industry Median: 3.4
vs WBO:PRLB: 10.16
Proto Labs (WBO:PRLB) 3-Year ROIIC % Explanation
Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.
High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
Be Aware
It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.
Proto Labs 3-Year ROIIC % Related Terms
Proto Labs 3-Year ROIIC % Historical Data
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The historical data trend for Proto Labs's 3-Year ROIIC % 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: 3-Year ROIIC % Comparison
For the Metal Fabrication subindustry, Proto Labs's 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % 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 3-Year ROIIC % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Proto Labs's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Proto Labs's 3-Year ROIIC % falls into.
Proto Labs's 3-Year ROIIC % for the quarter that ended in Dec. 2025 is calculated as:
3-Year ROIIC %
=
3-Year Incremental Net Operating Profit After Taxes (NOPAT)**
/
3-Year Incremental Invested Capital**
=
( 15.3007088 (Dec. 2025) - 25.438 (Dec. 2022) )
/
( 506.768 (Dec. 2025) - 644.093 (Dec. 2022) )
=
-10.1372912
/
-137.325
=
7.38%***
* 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.
** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.
Proto Labs (WBO:PRLB) has a 3-Year ROIIC % of 10.16 as of Dec. 2025. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Proto Labs and its competitors. This is 141% above median its historical median of 4.22. According to the industry distribution chart, Proto Labs ranks #1115 out of 2937 companies in the Industrial Products industry, placing it in the top 38%.
Is Proto Labs' 3-Year ROIIC % too high?
Proto Labs' current 3-Year ROIIC % of 10.16 is 141% above median its 10-year median of 4.22. The Industrial Products industry median 3-Year ROIIC % is 3.40. Proto Labs' value of 10.16 is 198.8% above this industry median. Based on the distribution chart, Proto Labs ranks #1115 out of 2937 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Proto Labs has a GF Score™ of 68/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Proto Labs' 3-Year ROIIC % compare to RYZ and WOR?
According to the Industrial Products industry distribution chart, Proto Labs ranks #1115 out of 2937 companies for 3-Year ROIIC %. This puts Proto Labs in the upper half of its industry. The industry median 3-Year ROIIC % is 3.40. Proto Labs' value of 10.16 is 198.8% above this benchmark. While the company's 10-year median is 4.22 vs. the industry median of 3.40, 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 3-Year ROIIC % for an Industrial Products company?
The median 3-Year ROIIC % among Industrial Products companies is 3.40, based on 2,937 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year ROIIC % significantly above this median, while those in the bottom quartile fall well below. However, 3-Year ROIIC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Proto Labs's current 3-Year ROIIC % of 10.16 is 198.8% 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 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Proto Labs and its competitors. For the Industrial Products industry, the median 3-Year ROIIC % is 3.40 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Proto Labs's current 3-Year ROIIC % is 10.16, which is 141% above median its own 10-year median of 4.22. 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 €38.65, compared to a current price of €66.80 — trading 72.8% above its estimated fair value. The current 3-Year ROIIC % is 10.16, which is 141% above median its 10-year median of 4.22 and 198.8% above the Industrial Products industry median of 3.40. Proto Labs' overall GF Score™ is 68/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Proto Labs (WBO:PRLB), the current 3-Year ROIIC % is 10.16 as of Dec. 2025. 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 €66.80 is trading 72.8% above its estimated GF Value™ of €38.65.
GuruFocus considers Proto Labs to be Significantly Overvalued.
Key valuation signals for WBO:PRLB:
3-Year ROIIC %: 10.16 (141% above median its 10-year median of 4.22)
GF Value™: €38.65 vs. price of €66.80 (72.8% above fair value)
Industry Position: 198.8% above the Industrial Products median (#1115 of 2937)
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.
68GF Score
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