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Research files · tokenized RWA

Ketju research: Coinbase USD Stablecoin Yield Fund (CUSHY)

Adverse research assessmentPublished by Ketju Research

This file describes the economic claim, control, loss, and exit evidence. Firm-shelf policy is a separate conclusion; client action and amount belong to the advisor. Not investment, legal, tax, or compliance advice.

Research summary

CUSHY is a share of Coinbase Tokenized Stablecoin Yield Feeder Fund Ltd, a Cayman company that Coinbase Asset Management runs to lend stablecoins and buy credit. It targets SOFR plus 4 to 7 percentage points and showed a 30-day yield of 7.54% on Superstate’s page. Superstate is transfer agent and issues the token on Solana and Base. The Form D, filed 23 June 2026, reports $25 million sold to two investors, and two Solana wallets hold 240,000 of the 250,000 tokens. The Form D claims Rule 506(c) and the Investment Company Act section 3(c)(7) exclusion, so only qualified purchasers may buy. The minimum is $100,000, which the manager may raise, lower, or waive. Subscriptions are monthly and redemptions quarterly: a request made in one calendar quarter is paid on a dealing day in the next. The assessment is adverse. Model clients are not qualified purchasers. For one who is, CUSHY pays a spread for lending to crypto borrowers, charges 0.75% plus 10% of returns, returns money once a quarter, and has two holders; the token adds allowlisted transfers, not an earlier exit.

Observable review triggers

  • Coinbase Asset Management or Superstate publishes the offering memorandum and it changes the investor class, fees, or redemption terms
  • The fund opens to accredited investors under section 3(c)(1)
  • The fund gates or delays a quarterly redemption, or a borrower default cuts NAV
  • The Solana mint authority or the Base owner key moves to a multisig with a delay

Facts on file

Research assessment
Adverse
Client selection
Not considered
Exposure
tokenized RWA
Chains examined
Solana, Base
Instruments
CUSHY
Reviewed
Next review

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