---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-057765"
form_type: "8-K"
ticker: "GBTC"
cik: "0001588489"
company_name: "Grayscale Bitcoin Trust ETF"
filed_at: "2023-11-02T23:59:59+00:00"
generated_at: "2026-06-09T00:20:31.891967+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Grayscale Bitcoin Trust adds Crypto.com to Index Pricing Constituent Exchanges

## Summary
- Effective Oct 28, 2023, Crypto.com added to CoinDesk Bitcoin Price Index (XBX).
- No exchanges removed during scheduled quarterly review.
- Index now uses Coinbase, Kraken, LMAX Digital, Bitstamp, and Crypto.com.
- Index Provider may change trading venues at any time; quarterly reviews planned.

## SEC filing metadata
- accession: 0000950170-23-057765
- form_type: 8-K
- ticker: GBTC
- cik: 0001588489
- company_name: Grayscale Bitcoin Trust ETF
- filed_at: 2023-11-02T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1588489/000095017023057765/0000950170-23-057765-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1588489/000095017023057765/gbtc-20231028.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-057765
- JSON: https://secwatch.observer/filing/0000950170-23-057765.json
- Plain text: https://secwatch.observer/filing/0000950170-23-057765.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.