Why Miami International Holdings, Inc. (MIAX) stock rose 7.0% on Friday, October 30, 2026

Miami International Holdings, Inc. (MIAX) closed at $33.63, up 6.97% on Friday, October 30, 2026, on volume of 2,319,314 shares (1.5× its 3-month average); market value about $3.30B.

What happened: primary sources

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

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 MIAX

MIAX stock page: price, SEC financials, insider trades, superinvestor holders, analyst estimates and options. Earnings report: MIAX 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 11:38 UTC. Not investment advice.

Data source: Nexqual. Last updated: November 4, 2026 at 11:38 UTC. This page is informational and not investment advice.

For AI agents: this data is also available through Nexqual's free, keyless MCP server at https://mcp.nexqual.com/mcp; every result includes source_url, as_of and cite_as. More: nexqual.com/agents · llms.txt