Tokenized Invesco Treasury fund shares go live as collateral on Kamino

Kamino, the Solana lending protocol, said on Aug. 18 that USTB — Superstate's tokenized share class of the Invesco Short Duration US Government Securities Fund — is now accepted as collateral in its onchain credit markets. Superstate posted its own thread announcing the same launch three minutes earlier, at 15:38 UTC. Solana's official account amplified Kamino's post.

Both companies put the fund's assets under management at roughly $950 million: Kamino cited "$950M AUM," Superstate "$950M+." Neither broke out how much of that sits in the tokenized share class as opposed to the fund overall — the number describes the Invesco fund, not the onchain float.

The structure, per Kamino and Superstate: Invesco manages the underlying portfolio of short-duration U.S. government securities; the token represents an interest in the fund; Superstate acts as transfer agent and supplies the onchain plumbing through its FundOS product; Kamino provides the borrowing layer. Vault Street is named as a supporting party at launch, with no further detail on its role. USTB joins GLXY, FWDI and USCC in what Kamino calls its Superstate Market. Superstate said more than $18 million in its tokenized assets are already posted as collateral on Kamino.

Access is restricted. Kamino describes USTB as available to "eligible investors" and appended a disclaimer that access may be blocked in certain jurisdictions under its terms. Kamino published a longer explainer at kamino.com/blog/invesco-short-duration-treasury-fund-on-kamino.

Key facts

• USTB live as Kamino collateral on Solana, announced 15:38–15:43 UTC, Aug. 18, 2026 (Superstate and Kamino posts on X)
• Fund AUM: $950M (Kamino) / $950M+ (Superstate) — the Invesco fund, not the token float
• Existing Superstate-tokenized collateral on Kamino: $18M+ (Superstate)
• Roles: Invesco, manager; Superstate, transfer agent and token infrastructure via FundOS; Kamino, credit layer; Vault Street, launch support (both accounts)
• Restricted to "eligible investors," with geo-blocking (Kamino disclaimer)

The real-world read

Everything here traces to the two companies announcing their own integration. Invesco's own account did not post about it, and no filing, custodian statement or independent confirmation accompanied the launch — Invesco is named as manager of the fund, not as a party to the DeFi deal.

Kamino's framing does visible work: the pitch that Invesco "manages $2.2 trillion" and distributes QQQ, "the second most traded ETF in the US," is true and irrelevant to a $950 million fund's onchain risk profile. Invesco's balance sheet does not backstop a Kamino position.

The omissions matter more than the figures. Neither company disclosed loan-to-value ratios, borrow caps, the oracle pricing USTB, or — most pointedly — how a permissioned, whitelist-restricted security gets liquidated when only eligible wallets can hold it. That is the central question for Treasury-backed collateral, and it went unanswered. The $18 million already posted is also a rounding error against $950 million.

Opinion, and whose

Reply accounts supplied the enthusiasm. @bullrunto wrote that "950m aum collateral unlocks more leverage than any memecoin ever will." @Moonrise_RISE said "Treasury shares as isolated collateral is the useful part" — though Kamino's posts do not state that USTB sits in an isolated market. Both are anonymous accounts, not parties to the deal.

Sources

• Kamino (@kamino, X/Nitter thread, Aug. 18, 2026) — launch confirmation, roles, $950M AUM, Superstate Market composition, eligibility disclaimer. This is the protocol's own promotional announcement.
• Superstate (@SuperstateInc, X/Nitter thread) — $950M+ AUM, $18M+ existing collateral, Vault Street. Also a first-party marketing post.
• Solana (@solana) — amplification only; adds no independent verification.
• Reply accounts (@bullrunto, @Moonrise_RISE, others) — unverified commentary, used only as attributed opinion.

Not financial advice.