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21Shares Files S-1 for Spot SEI ETF Tracking CF Benchmarks Index

The move places a passive SEI trust before the SEC with staking treatment still unresolved.

Overview

  • Filed on August 28, the prospectus outlines a grantor trust that directly holds SEI, tracks the CF SEI‑Dollar Reference Rate, and does not use leverage or derivatives.
  • Coinbase Custody Trust Company is designated to hold the tokens, and Coinbase Inc. is named as the prime broker for trading activities.
  • The filing says a portion of SEI may be staked to earn rewards only if doing so avoids legal, regulatory, or tax risk, with no final decision made.
  • 21Shares’ bid enters a competitive queue that includes Canary Capital’s earlier SEI application and related Cboe submissions, with many altcoin ETF proposals pending SEC review into October.
  • SEI briefly climbed toward $0.31 after the news before slipping near $0.28, as spot and futures data pointed to selling pressure, declining open interest, and negative funding rates.