Why Ambiq Micro, Inc. (AMBQ) stock rose 18.7% on Monday, November 9, 2026

Ambiq Micro, Inc. (AMBQ) closed at $45.77, up 18.70% on Monday, November 9, 2026, on volume of 897,302 shares (1.9× its 3-month average); market value about $1.10B.

What happened: primary sources

Events Nexqual found for AMBQ on Monday, November 9, 2026 or the trading day before (November 6, 2026):

• Nov 9, 2026: One of 4 Semiconductors stocks among the day's biggest gainers (AOSL, INDI, AMBQ, MPWR), with no comparable group among the biggest losers

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 AMBQ

AMBQ stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Other big moves that day: November 9, 2026.

Sources: SEC EDGAR, Nexqual Earnings Flash, analyst rating changes, Nexqual market data. Built November 10, 2026 at 16:24 UTC. Not investment advice.

Data source: Nexqual. Last updated: November 10, 2026 at 16:24 UTC. This page is informational and not investment advice.

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