Why NPK International Inc. (NPKI) stock fell 16.5% on Friday, October 30, 2026

NPK International Inc. (NPKI) closed at $9.35, down 16.52% on Friday, October 30, 2026, on volume of 4,211,310 shares (5.6× its 3-month average); market value about $800.0M.

What happened: primary sources

Events Nexqual found for NPKI on Friday, October 30, 2026 or the trading day before (October 29, 2026):

• Oct 29, 2026: Reported Q3 2026 results: adjusted EPS $0.09 vs consensus $0.12 (miss), revenue $76.3M vs consensus $76.7M (miss). Guidance: Full-year 2026 revenue is anticipated in a range of $300 million to $305 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 NPKI

NPKI stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Earnings report: NPKI results, October 29, 2026. Other big moves that day: October 30, 2026.

Sources: SEC EDGAR, Nexqual Earnings Flash, analyst rating changes, Nexqual market data. Built November 4, 2026 at 11:37 UTC. Not investment advice.

Data source: Nexqual. Last updated: November 4, 2026 at 11:37 UTC. This page is informational and not investment advice.

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