secwatch.observer — SEC 8-K summary
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Issuer:     Grayscale Bitcoin Trust ETF (GBTC)
CIK:        0001588489
Form:       8-K
Filed at:   2022-02-04T23:59:59+00:00
Accession:  0001193125-22-028539
Event type: other_material
Sentiment:  neutral
Materiality: 0.50
Item codes: 1.01, 1.02, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Grayscale Bitcoin Trust switches Bitcoin valuation to CoinDesk XBX Index Price, dropping prior averaging
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- New Index Price removes additional daily averaging; uses raw 24-hour VWAP from CoinDesk XBX as of 4 pm NY time.
- Historical average difference between Old and New Index Price was 0.31% from Jan 2019 to Dec 2021.
- No change to index composition or exchange selection criteria; methodology aligns with publicly available XBX.
- Old Index License Agreement with TradeBlock terminated Jan 31, 2022; new agreement effective Feb 1, 2022.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1588489/000119312522028539/0001193125-22-028539-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1588489/000119312522028539/d466708d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-22-028539

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer