PRLB

Proto Labs, Inc. $81.98 1M -9.7% 3M +5.2% YTD +59.6% as of 2026-09-11

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▲ buy ▼ sell · size ≈ trade size · earnings ● beat ● miss · ring ◯ before open ◯ after close · ─ moving averages · click the buttons above to hide them

Model view — historical tendencies for the days ahead, not a forecast

Next 1 day

+0.1%

Next 1 week

-0.5%

Next 1 month

-1.4%

Seasonality

Weak window historically

Next 30 days (to Oct 14): -4.5% median, 38% of the last 13 years finished up.

20-year seasonality chart →

Mean reversion

Neutral — RSI(2) at 78

RSI(2) under 15 is oversold (this name has historically bounced); over 85 is overbought. Its dip-buy edge in history is -0.12%/day.

Mean-reversion stats →

1-month breakdown — Market · β 2.04 -0.3% · Seasonal tilt -1.0%

$13M/day volume 47% volatility +67% 1-year -71% from ATH

52-week range · 77% of the way up · -12% from the high

$45.10$93.00

Congressional trades in PRLB Full tracker →

4 members · 1 buys / 4 sells · $203K–$545K disclosed · latest filing Nov 9, 2020.

SELL	GG Greg Gianforte · traded Oct 28, 2020	$100K–$250K
BUY	GG Greg Gianforte · traded Sep 6, 2019	$100K–$250K
SELL	TM Thomas MacArthur · traded May 27, 2015	$1K–$15K
SELL	TT Thomas R Tillis · traded Feb 13, 2015	$1K–$15K
SELL	LF Lois Frankel · traded Apr 25, 2014	$1K–$15K