The Rail Is the Product: Tokenised Cash Funds and What the Checking Is Worth
A tokenised cash fund holds the same Treasury bills you already own, settles on a rail that runs continuously, and costs a little more. Whether to switch is very hard to answer honestly, because the two sides answer to different disclosure regimes: one publishes a standardised thirty-day yield, the other a seven-day sponsor rate; one a total expense ratio, the other a subsidised management fee with custody outside it. None of it is concealed. Our view is to change the question. This is a liquidity operations instrument, not a yield instrument, and it belongs in the treasury and collateral sleeve budgeted against settlement risk. The segment is $16.19bn across 87 products, roughly double a year ago, and one incumbent fund is still more than six times that. The premium is not a number: depending which two funds you compare it runs from nothing to more than forty basis points, and all the answers are defensible. Three on-chain funds resolve in our own data, each named like a share class of an existing fund and recorded as a wholly new one, and one ticker widely quoted for a tokenised Treasury fund resolves to an unrelated listed bond fund at $2.49bn.
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