{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-070593","form_type":"8-K","ticker":"ARCB","cik":"0000894405","company_name":"ARCBEST CORP /DE/","filed_at":"2026-06-04T21:13:34+00:00","discovered_at":"2026-06-04T21:14:00.252865+00:00","generated_at":"2026-06-04T21:21:27.360739+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 Q2 update: expects Asset-Based OR improvement of 600-700 bps sequentially","bullets":["May 2026 Asset-Based daily tonnage +5% YoY, revenue per shipment +14%, shipments/day -4%.","Asset-Light May daily revenue +32% YoY, shipments +14%, revenue per shipment +15%.","Q2 Asset-Light non-GAAP operating income guided at $3M-$5M; excludes $2M purchase accounting.","Asset-Based non-GAAP OR expected to improve ~600-700 bps from Q1, driven by pricing and cost actions.","Revenue per hundredweight (ex-fuel surcharge) flat in May for Asset-Based; fuel surcharge boosting revenue."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-070593","json":"https://secwatch.observer/filing/0001104659-26-070593.json","markdown":"https://secwatch.observer/filing/0001104659-26-070593.md","text":"https://secwatch.observer/filing/0001104659-26-070593.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/894405/000110465926070593/0001104659-26-070593-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/894405/000110465926070593/arcb-20260604x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T21:21:27.360739+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"}