---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-330994"
form_type: "8-K"
ticker: "ETH"
cik: "0002020455"
company_name: "Grayscale Ethereum Staking Mini ETF"
filed_at: "2025-12-23T23:59:59+00:00"
generated_at: "2026-05-16T12:20:08.174354+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Grayscale Ethereum Mini Trust ETF adds Bitstamp to index pricing sources

## Summary
- Index provider added Bitstamp by Robinhood to CoinDesk Ether Price Index effective Dec 21, 2025.
- No trading platforms removed; now six constituent platforms: Coinbase, Kraken, Crypto.com, LMAX Digital, Gemini, Bitstamp.
- Change resulted from scheduled quarterly review; Bitstamp met minimum liquidity requirement.
- Index methodology unchanged; future changes may occur at any time or during quarterly reviews.

## SEC filing metadata
- accession: 0001193125-25-330994
- form_type: 8-K
- ticker: ETH
- cik: 0002020455
- company_name: Grayscale Ethereum Staking Mini ETF
- filed_at: 2025-12-23T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2020455/000119312525330994/0001193125-25-330994-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2020455/000119312525330994/eth-20251221.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-330994
- JSON: https://secwatch.observer/filing/0001193125-25-330994.json
- Plain text: https://secwatch.observer/filing/0001193125-25-330994.txt

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