---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-220464"
form_type: "8-K"
ticker: "BCHG"
cik: "0001732409"
company_name: "Grayscale Bitcoin Cash Trust (BCH)"
filed_at: "2025-09-26T23:59:59+00:00"
generated_at: "2026-05-17T05:34:39.315621+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# BCHG NAV valuation index changing to CoinDesk BCH CCIXber Reference Rate from Oct 1

## Summary
- Effective Oct 1, 2025, BCHG NAV will use the CoinDesk BCH CCIXber Reference Rate instead of the prior CoinDesk Bitcoin Cash Index (BCX).
- New index is a volume-weighted real-time price from Constituent Trading Platforms such as Crypto.com, Kraken, LMAX Digital, and Bitstamp.
- Index methodology includes outlier detection, inactivity adjustment, and manipulation resistance; exact algorithm is not publicly available.
- If the primary index is unavailable, the Sponsor will use a cascading fallback: Coin Metrics Secondary Index, then a Tertiary Pricing Option, then a good-faith estimate.
- No financial impact or change in Trust holdings was disclosed; the change is purely a valuation methodology update.

## SEC filing metadata
- accession: 0001193125-25-220464
- form_type: 8-K
- ticker: BCHG
- cik: 0001732409
- company_name: Grayscale Bitcoin Cash Trust (BCH)
- filed_at: 2025-09-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1732409/000119312525220464/0001193125-25-220464-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1732409/000119312525220464/bchg-20250926.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-220464
- JSON: https://secwatch.observer/filing/0001193125-25-220464.json
- Plain text: https://secwatch.observer/filing/0001193125-25-220464.txt

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