{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-108396","form_type":"8-K","ticker":"ETH","cik":"0002020455","company_name":"Grayscale Ethereum Staking Mini ETF","filed_at":"2026-03-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.006725+00:00","generated_at":"2026-05-15T11:59:19.494519+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Grayscale Ethereum Staking Mini ETF to switch NAV pricing to CoinDesk Ether Benchmark Rate from April 1","bullets":["Effective April 1, 2026, NAV will use CoinDesk Ether Benchmark Rate instead of CoinDesk Ether Price Index (ETX).","New benchmark is volume-weighted from 11 platforms: Binance, Bitstamp by Robinhood, Bullish, Bybit, Crypto.com, Gate, Gemini, HashKey, Kraken, LMAX Digital, OKX.","Methodology includes outlier detection, inactivity de-weighting, and manipulation resistance to reduce impact of anomalous trades.","If Index is unavailable, cascading fallback: Coin Metrics Real-Time Rate, principal market price, then Sponsor's good-faith estimate."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-108396","json":"https://secwatch.observer/filing/0001193125-26-108396.json","markdown":"https://secwatch.observer/filing/0001193125-26-108396.md","text":"https://secwatch.observer/filing/0001193125-26-108396.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2020455/000119312526108396/0001193125-26-108396-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2020455/000119312526108396/eth-20260316.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T11:59:19.494519+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"}