PRLB (Proto Labs) Momentum Rank: 10 (As of Aug. 20, 2026) — 43% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

PRLB Proto Labs Inc PRLB
67 GF Score
Price $82.08
GF Value $46.27
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Proto Labs Momentum Rank?

Proto Labs PRLB -3.30% 67 Momentum Rank is 10 as of Aug. 20, 2026, which is 43% above its 10-year median of 7.00. GuruFocus rates PRLB with a GF Score™ of 67/100 and a GF Value™ of $46.27 (Significantly Overvalued). The stock has 7 warning signs investors should review.

Proto Labs has the Momentum Rank of 10.

Momentum Rank measures the strength and persistence of a stock's price movement over time, rated on a scale of 1 to 10.

For Momentum Rank, we considered the residual momentum concept that was widely studied by Blitz and his colleagues as well as by Nobel Prize laureates Fama and French. However, we did not find any significant differences in the performances of stocks with different ranks of residual momentum. Therefore, we use traditional momentum instead.

Momentum Rank is determined using the standardized momentum ratio and other momentum indicators. The standardized momentum ratio is the average of the performances from 12 months ago to 1 month ago and 6 months ago to 1 month ago, divided by the beta of the stock over the past 12 months. To calculate the momentum ratio today, we would use the average of the two performance numbers.

For momentum, we found that stock price performance does not have a monotonic correlation with the momentum ratio. The stocks with the highest momentum ratios perform worse than those at about the 70th percentile. Therefore, for the momentum rank, we ranked the stocks at about the 70th percentile of the momentum ratio as the highest at 10.

A higher score reflects strong price momentum and indicates greater potential for superior performance. Conversely, a lower score indicates that momentum is either too high or too low, and stocks tend to underperform.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.

PRLB vs RYZ, WOR, MEC: Momentum Rank Comparison

For the Metal Fabrication subindustry, Proto Labs's Momentum Rank, along with its competitors' market caps and Momentum Rank 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 Momentum Rank vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Proto Labs's Momentum Rank distribution charts can be found below:

* The bar in red indicates where Proto Labs's Momentum Rank falls into.


PRLB
67GF Score
Proto Labs Inc PRLB
Momentum Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about Momentum Rank →
What does a Momentum Rank of 10 mean?
Proto Labs (PRLB) has a Momentum Rank of 10 as of Aug. 20, 2026. Momentum Rank is determined using the standardized momentum ratio, measuring the speed and velocity of price changes in a stock. View historical data on Proto Labs and its competitors. This is 43% above median its historical median of 7.00. Over the past decade, Proto Labs' Momentum Rank has ranged from 1.00 to 10.00.
Is Proto Labs' Momentum Rank too high?
Proto Labs' current Momentum Rank of 10 is 43% above median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 1.00 to a high of 10.00. Overall, Proto Labs has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Proto Labs' Momentum Rank compare to RYZ and WOR?
Proto Labs' Momentum Rank of 10 can be compared against companies in the Industrial Products industry. Historically, Proto Labs' own Momentum Rank has ranged from 1.00 to 10.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Momentum Rank for an Industrial Products company?
A good Momentum Rank depends on the Industrial Products industry context. However, Momentum Rank should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Momentum Rank mean?
A high Momentum Rank can signal that a stock is expensive relative to its fundamentals. Momentum Rank is determined using the standardized momentum ratio, measuring the speed and velocity of price changes in a stock. View historical data on Proto Labs and its competitors. Proto Labs's current Momentum Rank is 10, which is 43% above median its own 10-year median of 7.00. 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 (PRLB) is currently considered Significantly Overvalued. The stock's GF Value™ is $46.27, compared to a current price of $82.08 — trading 77.4% above its estimated fair value. The current Momentum Rank is 10, which is 43% above median its 10-year median of 7.00. Proto Labs' overall GF Score™ is 67/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Momentum Rank calculated?
Momentum Rank is calculated from a company's financial statements. For Proto Labs (PRLB), the current Momentum Rank is 10 as of Aug. 20, 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 (PRLB) Overvalued in 2026?

Based on GuruFocus' analysis, Proto Labs stock appears to be overvalued. The current stock price of $82.08 is trading 77.4% above its estimated GF Value™ of $46.27. GuruFocus considers Proto Labs to be Significantly Overvalued.

Key valuation signals for PRLB:

  • Momentum Rank: 10 (43% above median its 10-year median of 7.00)
  • GF Value™: $46.27 vs. price of $82.08 (77.4% above fair value)
  • GF Score™: 67/100 with 7 warning signs

No single metric tells the full story. See the PRLB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Proto Labs Business Description

Address 5540 Pioneer Creek Drive, Maple Plain, MN, USA, 55359
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.
67GF Score

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Momentum Rank is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$82.08
Price
$46.27
GF Value