Why Proto Labs, Inc. (PRLB) stock fell 14.6% on Thursday, October 29, 2026

Proto Labs, Inc. (PRLB) closed at $77.64, down 14.60% on Thursday, October 29, 2026, on volume of 613,335 shares (3.0× its 3-month average); market value about $1.90B.

What happened: primary sources

Events Nexqual found for PRLB on Thursday, October 29, 2026 or the trading day before (October 28, 2026):

• Oct 29, 2026: Reported Q3 2026 results: adjusted EPS $0.63 vs consensus $0.60 (beat), revenue $154.3M vs consensus $149.3M (beat). Guidance: For Q4 2026, the Company expects revenue between $143.0 million and $151.0 million. source

These are listed as context. A filing or rating change on the same day is not proof that it caused the move; read the source.

More on PRLB

PRLB stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Other big moves that day: October 29, 2026.

Sources: SEC EDGAR, Nexqual Earnings Flash, analyst rating changes, Nexqual market data. Built October 29, 2026 at 23:42 UTC. Not investment advice.

Data source: Nexqual. Last updated: October 29, 2026 at 23:42 UTC. This page is informational and not investment advice.

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