{"schema_version":"secwatch.filing_event.v1","accession":"0001438472-26-000040","form_type":"8-K","ticker":"MIAX","cik":"0001438472","company_name":"MIAMI INTERNATIONAL HOLDINGS, INC.","filed_at":"2026-08-05T20:14:43+00:00","discovered_at":"2026-08-05T20:16:00.271260+00:00","generated_at":"2026-08-05T20:16:37.859572+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"MIAX Q2 net revenue record $141M (+35% YoY); adjusted EBITDA $77M (+57%); updates FY guidance","bullets":["Q2 net revenue record $141.1M (+35% YoY); GAAP diluted EPS $0.40; adjusted diluted EPS $0.48.","Adjusted EBITDA $76.8M (+57% YoY); margin expanded to 54% from 47%.","Options segment net revenue $124.4M (+34%); average daily volume 11.0M contracts (+25% YoY); market share 16.5%.","Recorded $22.5M litigation settlement charge in options segment; International net revenue $5.7M (+151%) from TISE acquisition.","FY 2026 guidance: adjusted op ex $260-270M (down from $265-275M); D&A $35-39M (up); share-based comp $29-32M (up)."],"urls":{"canonical":"https://secwatch.observer/filing/0001438472-26-000040","json":"https://secwatch.observer/filing/0001438472-26-000040.json","markdown":"https://secwatch.observer/filing/0001438472-26-000040.md","text":"https://secwatch.observer/filing/0001438472-26-000040.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1438472/000143847226000040/0001438472-26-000040-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1438472/000143847226000040/miax-20260805.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-08-05T20:16:37.859572+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}