{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-024695","form_type":"8-K","ticker":"ARCB","cik":"0000894405","company_name":"ARCBEST CORP /DE/","filed_at":"2026-03-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.974498+00:00","generated_at":"2026-05-15T19:13:43.662044+00:00","sec_items":["7.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"ArcBest Q1 update: Asset-Based tonnage +6% QTD; Asset-Light revenue +6%; expects Q1 Asset-Light op income up to $2M","bullets":["Asset-Based: Feb billed revenue/day flat YoY, tonnage +2%; QTD tonnage +6%, revenue/CWT -5%.","Asset-Light: Feb revenue/day +8% YoY, shipments +12%; QTD revenue +6%, shipments +13%.","Q1 Asset-Based operating ratio expected to increase 100-200 bps sequentially, improvement vs typical 260 bps.","Q1 Asset-Light non-GAAP operating income up to $2M; excludes ~$3M purchase accounting amortization."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-024695","json":"https://secwatch.observer/filing/0001104659-26-024695.json","markdown":"https://secwatch.observer/filing/0001104659-26-024695.md","text":"https://secwatch.observer/filing/0001104659-26-024695.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/894405/000110465926024695/0001104659-26-024695-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/894405/000110465926024695/arcb-20260306x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T19:13:43.662044+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"}