LSEG and DiSH cash. A tasty souffle or an Eton mess?

Olaf Ransome

Founder, 3C Advisory  |  Published on LiquidityFinder

To unlock the potential of new digital assets in wholesale banking, we need a great solution for the means of payment. When LSEG announced DiSH, its Digital Settlement House, I thought it deserved a closer look.

On 15 January this year, London Stock Exchange Group launched its Digital Settlement House: LSEG DiSH. It is an open-access platform designed to deliver programmatic, instantaneous settlement across both on-chain and traditional payment networks, 24 hours a day. The settlement mechanism is DiSH Cash, a ledger-based representation of commercial bank deposits held across a network of member banks, supporting multiple currencies and jurisdictions. It is not a stablecoin.

The launch followed a proof of concept on the Canton Network conducted alongside Digital Asset and a consortium of financial institutions, and sits within LSEG's Post Trade Solutions division, the business in which eleven global banks including Bank of America, Barclays, Citi, Deutsche Bank, HSBC and JP Morgan collectively took a 20% stake in October 2025. Those names matter; they are both stakeholders and the anticipated first users of the service.

My view on developments in matters "new digital assets" in the wholesale banking space, is that in order to unlock all the potential benefits, we need a great solution for the means of payment.

By great, I mean, among other things, a solution which supports each of the three things P we want to do with a means of payment: P for payment, PvP for payment vs. payment i.e. FX, and DvP for delivery vs. payment, i.e. securities settlement. With that we need the ability to scale and service the global financial services industry. Millions of transactions and movements every day.

I have also chanted out loud that I believe tokenised deposits are useless outside the four walls of the issuing bank. With that I would allow for a private garden on the public blockchain with permissioned access.

I would add that today in TradFI we have existing systems which are great at any one of those three things P. Certainly for payments, I think it is unlikely that a new payment system can be significantly more effective. Our challenge even before we do things "new digital assets" is intraday liquidity management; so a solution which allows us to do all three things P is a welcome development.

Detail

For a more detailed view on what I think nirvana looks like, please take a look at the series of papers I wrote on things liquidity last year. This link will take you to the box set.

So, when LSEG recently announced its DiSH, Digital Settlement House, offering, a 24/7 platform for settlements and payments, I thought this one deserved a closer look.

How DiSH works

The means of payment in the DiSH structure is DiSH Cash. This is represented "on chain" based on money paid into participating commercial banks. The ledger balance at DiSH then drives the ability to settle trades and make payments. DiSH will settle things PvP, i.e. FX, as well as things DvP, i.e. securities.

What changes hands is a DiSH balance, so if Bank A settles a FX trade selling CHF 100 vs. USD 120 with Bank B, then A's DiSH balances reduce by 100 in CHF and increase by 120 in USD. At that moment in time, nothing moves in the underlying commercial banks. This concept is really not any different from having a currency account at Euroclear, or multiple currency accounts at CLS Bank, albeit that the former only services securities and the latter only FX.

Today, intraday liquidity management is difficult, and the associated buffers are expensive. We have to have currency balances in multiple places and there is pretty much no way to move them in real-time. In wholesale markets, there is no means to do an FX trade with instant settlement, so we have a reliance on correspondent banks and custodians providing intra-day overdrafts. 99.9% of all the people in financial services have absolutely zero or nearly zero understanding of the side-effects of those overdrafts in terms of their impact on the liquidity buffers banks need to hold. They are huge in terms of size and, as a consequence, cost.

DiSH coordinates with external systems (e.g. an FX platform or a DLT securities platform). Only when both sides of the trade are ready does DiSH move DiSH Cash and signal the asset movement, ensuring atomic settlement.

So, DiSH Cash appears to be a single pool of money, a SPooL; enabling what I have described above, servicing all things P. That alone is a positive -- having a SPooL is a real enabler, as it simplifies intraday liquidity management.

Does the approach work?

On a first pass view, if the underlying network is a private chain, then that would meet the conditions for providing settlement finality. Good. 

Now on to things money, aka the means of payment. One evergreen question around things digital is: "Who has a claim on what?"

LSEG is not itself an issuer of DiSH Cash, so holders do not have a claim against LSEG as they might with a correspondent bank. DiSH Cash is a representation of balances at commercial banks.

There is nuance here. DiSH is not per se an FMI, it is just a coordinator. So economically and, by design, legally, any DiSH balance is a claim on one or more underlying commercial bank accounts, not a claim on LSEG itself. LSEG is the operator and validator, not "your bank".

Here is what I understand. Let's start with some balances:

Somewhere in the DiSH network, participants collectively hold 300 USD of deposits at member banks (Wells + Citi + JPM). DiSH reflects this as 300 USD of DiSH Cash on its ledger. Through onboarding and funding, each participant's DiSH position is mapped to deposits at one or more specific banks. The mapping can be many-to-one or many-to-many.

Now some transactions take place. For simplicity, let's stick with payments. Charlie pays Fred 20 and Barney 30. Nothing moves at Wells, Citi or JPM. Fred's balance in USD DiSH is now 120, Barney's is 130, and Charlie's is zero.

The wallet-to-wallet question: If Fred has 120 DiSH, backed 1:1 by fiat but with no clarity on exactly where -- that is a red flag. Risk calculations would need to include those cash balances in credit risk numbers.

Olaf Ransome
Founder, 3C Advisory

In summary

Let's say those are the positions at close of business. There is no claim on LSEG. What should Fred and Barney show in their balance sheets?

I would expect the new business approval process to look very hard at this. If Fred says "I have 120 DiSH, it is backed 1:1 by fiat, I just don't know where exactly," that is a red flag. The risk calculations would need to include those cash balances in the credit risk numbers.

Then would come the question of what happens when Fred wants to move that 120. Let's start with something simple: Fred wants to move 120 back to his fiat account at Wells. He does not have an account with either Citi or JPM. Who instructs what to whom?

With DiSH being based on tokenised commercial bank money, I'll repeat what I wrote at the start: tokenised deposits are useless outside the four walls of the issuing bank.

With all things bleeding edge in financial services, there is every risk that I haven't understood properly, or just missed a few salient points, or come to an implausible conclusion. If any of these things are true, please call me out on them.

Please feel free to get in contact via LiquidityFinder here.

Olaf Ransome

Olaf is a liquidity and financial services expert and the founder of 3C Advisory. You can message Olaf directly here.

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