{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-26-028454","form_type":"8-K","ticker":"VST","cik":"0001692819","company_name":"Vistra Corp.","filed_at":"2026-07-14T21:29:37+00:00","discovered_at":"2026-07-14T21:32:00.232176+00:00","generated_at":"2026-07-14T21:32:06.297483+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Vistra clears 10,924 MW in PJM 2028/2029 capacity auction at $325/MW-day","bullets":["Cleared 10,924 MW at $325.00/MW-day in PJM 2028/2029 capacity auction.","Uniform clearing price across all zones: RTO, COMED, DEOK, EMAAC, MAAC, ATSI, DOM.","Auction results for planning year 2028/2029; no guidance change provided."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-26-028454","json":"https://secwatch.observer/filing/0001140361-26-028454.json","markdown":"https://secwatch.observer/filing/0001140361-26-028454.md","text":"https://secwatch.observer/filing/0001140361-26-028454.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1692819/000114036126028454/0001140361-26-028454-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1692819/000114036126028454/ef20077988_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-14T21:32:06.297483+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"}