ISDA has published a consultation paper on using shares in tokenized money market funds (TMMFs) as eligible collateral under the ISDA Credit Support Annex, and is asking market participants to send feedback to [email protected] on standardization, format and implementation timelines.

The paper stops short of setting policy. ISDA states plainly: "This paper is not a final statement on tokenized assets under ISDA documentation." Instead, it identifies the legal and operational questions that desks, collateral managers and legal teams must resolve before TMMF shares can move through standard CSA workflows at scale.

What is at stake for collateral desks?

TMMFs combine the liquidity, stability and regulatory familiarity of traditional money market funds with the programmability and operational efficiency of digital assets. That combination has driven substantial interest in posting TMMF shares as collateral for financial market transactions — notably derivatives.

For collateral management operations, the appeal is concrete: distributed ledger technology has matured from experimental infrastructure into solutions capable of addressing longstanding inefficiencies in collateral management. Tokenized fund shares promise faster settlement, programmable transfers and reduced reconciliation overhead compared with conventional fund units used in collateral arrangements.

But eligibility under documentation is the gating question. An asset that clears a custodian's operational test still needs to clear the CSA's legal one.

What does the paper actually do?

ISDA frames three objectives:

• Raise awareness of the issues that may need consideration when taking or posting shares in TMMFs as collateral, depending on the structure of those TMMFs;
• Highlight which issues could be dealt with through standardization, including potential amendments to, or supplements of, standard-form ISDA documentation;
• Outline practical approaches market participants can use to address party-specific considerations arising from the operational or legal features of tokenized assets.

The distinction matters. Some problems — how to describe the collateral, how to handle substitution and valuation — may lend themselves to uniform contractual fixes. Others, tied to the specific structure of an individual TMMF or the operational setup of a tokenized platform, will remain party-specific and require bespoke drafting.

Where is ISDA asking for input?

The consultation poses three questions:

• Which provisions to amend. Section 4 of the paper, "Key Provisions of the ISDA Collateral Documentation," identifies areas where standardized amendments or clarifications could make ISDA collateral documentation accommodate TMMF share collateral more efficiently.
• What format those amendments should take. ISDA floats one example — a standardized supplement to the ISDA collateral documentation for a TMMF structured in a specific way — and asks whether that or another format is preferred.
• What timeline implementation should follow. The paper invites views on the appropriate timing for rolling out any standardized amendments.

ISDA also asks whether there are further matters on which it could helpfully convene the market.

Feedback goes to [email protected].

Mandated versus proposed

Nothing in the paper changes existing documentation today. CSAs as currently drafted govern collateral rights between counterparties; the paper neither mandates new eligibility criteria nor amends standard forms. What it does is map the terrain — separating the issues that standardization can absorb from those that will stay in the hands of negotiating parties.

Buy-side funds holding tokenized MMF shares, prime brokers accepting them, and derivatives counterparties on both sides of a CSA should read Section 4 as a checklist of the provisions their legal teams will need to confront regardless of what ISDA eventually standardizes.

Why the structure of the TMMF matters

The paper repeatedly conditions its analysis on "the structure of those TMMFs." Tokenization is not a single legal construct: a tokenized fund share may represent a different set of rights depending on the fund's jurisdiction, the recordkeeping architecture and the transfer mechanics built into the token. Those variables feed directly into collateral questions — perfection of security interest, enforceability in default, and the mechanics of exercising remedies over a tokenized asset.

This is why ISDA treats the work as incremental rather than definitive. The paper explicitly positions itself as a step toward facilitating TMMF use in collateral arrangements, not a completed framework.

What comes next

The consultation's outcome will shape whether TMMF collateral moves through a standardized supplement — analogous to how ISDA has handled other asset-class-specific documentation — or through a patchwork of bilateral riders. Market participants have an interest in answering before the drafting starts. ISDA's next publication, informed by the feedback received, will indicate whether standardized amendments to ISDA collateral documentation proceed, in what format, and on what timeline.