What is PRLB's market cap?

$1.59B, based on the Nov 4 close of $66.48.

What is PRLB's P/E ratio?

45.3× trailing-twelve-month earnings of $35.02M.

Does PROTO LABS pay a dividend?

No regular cash dividend has been paid in the last year.

How much of PRLB is sold short?

653.2K shares, 2.8% of float, as of Oct 15, 2026.

What sector is PRLB in?

Materials, in the Materials Manufacturing industry.

NYSE · PRLBMaterialsMaterials Manufacturing

PROTO LABS, INC. (PRLB)

$66.48−3.79%

Close Nov 4, 2026 · split-adjusted

Nov 3, 2026$69.10▲ 29.23% in range

Nov 3, 2025Low $46.81 · High $98.68Nov 3, 2026

What changed · written from our data

As of Nov 4, 2026

PROTO LABS closed at $66.48 on Nov 4, down 3.79%, 32.6% below its 52-week closing high. Volume of 312.5K shares was 1.29× its 20-day average (above normal).

Split-adjusted performance: -31.7% over one month, -3.5% over six months, +24.3% over one year.

In the quarter ended Sep 30, 2026, revenue was $154.32M, up 14.0% from a year earlier, with a net margin of 7.6%.

Short interest was 653.2K shares at the Oct 15 settlement, down 11.7% from the prior report (2.8% of float, 3.2 days to cover).

Market cap$1.59B23.9M shares

Revenue · quarter$154.3M+14.0% YoY

Diluted EPS$0.48+60.0% YoY

P/E · TTM45.3×P/S 2.7×

Net margin7.6%Gross 44.5%

Dividend yieldNone

52-week range46.81 – 98.68−32.6% from high

Volume312.5K1.29× 20-day avg

Volatility · 60d56.3%Annualised

Short % of float2.8%3.2 days to cover

Net cash$151.1MCash $151.1M

Next earnings—Not scheduled

Split-adjusted performance

1W −26.9%1M −31.7%3M −24.4%6M −3.5%YTD +31.4%1Y +24.3%3Y +184.0%5Y −9.8%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Materials Manufacturing

Percentile among 116 companies (100 = best)

6-month momentum44

Revenue growth55

Net margin55

Value (low P/E)10

Size49

Industry medians: 6-month return −0.7%, revenue growth +10.1%, net margin 6.5%, P/E 21.5×.

Short interest

Details →

Shares short653.2K−11.7% vs prior

Days to cover3.2Settled Oct 15

% of float2.8%

Short vol. 10d59.5%of daily volume

Closest peers by size in Materials Manufacturing

Company	Price	Today	6M	Rev. growth	Net margin	P/E	Mkt cap
PRLBPROTO LABS	$66.48	−3.79%	−3.5%	+14.0%	7.6%	45.3	$1.59B
HLMNHillman Solutions	$8.78	+5.15%	+10.6%	+7.7%	1.4%	70.4	$1.71B	Compare
TRSTrimas	$39.40	+0.48%	−5.3%	+1.6%	7.7%	—	$1.41B	Compare
KALUKaiser Aluminum	$110.74	−6.23%	−38.6%	+44.0%	2.6%	8.3	$1.81B	Compare
TGLSTecnoglass Holdings	$42.81	+8.05%	−2.8%	+15.6%	8.3%	14.6	$1.90B	Compare
GTGoodyear Tire & Rubber	$4.55	+2.48%	−37.7%	−4.8%	−4.8%	—	$1.31B	Compare
WWWWolverine World Wide	$23.50	+8.65%	+36.2%	+6.8%	6.2%	17.8	$1.93B	Compare
ROCKGibraltar Industries	$43.58	+6.60%	+15.0%	+64.6%	1.6%	—	$1.29B	Compare
WSWorthington Steel	$40.48	+0.62%	−3.3%	+212.4%	−0.4%	—	$2.07B	Compare

News about PROTO LABS

All news →

Proto Labs (PRLB) Beats Q3 Earnings and Revenue EstimatesZacks Investment Research · 6d agoNeutral

Quick answers

What does PROTO LABS do?: 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.
What is PRLB's market cap?: $1.59B, based on the Nov 4 close of $66.48.
What is PRLB's P/E ratio?: 45.3× trailing-twelve-month earnings of $35.02M.
Does PROTO LABS pay a dividend?: No regular cash dividend has been paid in the last year.
How much of PRLB is sold short?: 653.2K shares, 2.8% of float, as of Oct 15, 2026.
What sector is PRLB in?: Materials, in the Materials Manufacturing industry.

About PROTO LABS

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.

HQ: Maple Plain, MN2,280 employeesListed Feb 24, 2012protolabs.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology