An irrevocable letter of credit lodged by CME with Singapore Exchange’s derivatives clearing house was larger than the cash and securities supplied by SGX-DC’s own clearing members to its clearing fund at June 30, 2026. CME’s collateral under the Mutual Offset Settlement Agreement was S$517.8 million. Member clearing-fund and other deposits totalled S$493.049 million. The letter of credit exceeded that pool by S$24.751 million, or 5.0 per cent.[1]
The comparison does not mean the two resources are interchangeable or that one replaces the other. They support different obligations in SGX’s clearing architecture. Its significance is that a bilateral cross-exchange arrangement produced a contingent collateral amount comparable with — and slightly larger than — the entire disclosed member-funded default pool. That scale is easy to miss because the assets and corresponding liabilities do not appear on SGX Group’s statement of financial position.[1]
The two collateral pools
SGX’s Note 36 says clearing members lodged S$440.400 million in cash and S$52.649 million of quoted government securities for clearing-fund and other deposit purposes. Adding those amounts gives S$493.049 million. The same note records S$517.8 million of irrevocable letters of credit lodged by Chicago Mercantile Exchange with SGX-DC to meet collateral requirements under the Mutual Offset Settlement Agreement.[1]
Subtracting S$493.049 million from S$517.8 million produces S$24.751 million. Dividing the difference by the member fund gives 5.02 per cent. The calculation is a scale comparison, not a claim that SGX could freely combine the resources in every default scenario. Access, sequencing, eligible losses and legal triggers depend on the clearing rules and the mutual-offset agreement.[1]
A letter of credit is not cash already sitting in an SGX bank account. It is a bank-backed commitment payable under specified conditions. Government securities are also different from cash, with market value and liquidation considerations. The annual report groups these instruments as assets held in trust or contingent assets and explains that neither they nor corresponding liabilities are included in the group balance sheet.[1]
A reciprocal structure, not a one-way exposure
The annual report discloses the other side of the arrangement in contingent liabilities. SGX-DC had issued S$491.871 million of unsecured guarantees to banks for standby letters of credit that the banks issued to CME for members’ open positions on CME. SGX says those guarantees are supported by members’ collateral balances.[1]
The two figures are close but not identical. CME lodged S$517.8 million with SGX-DC, while SGX-DC’s guarantees connected to CME positions were S$491.871 million. The S$25.929 million difference should not be interpreted as profit, surplus protection or a net receivable. They are separate contingent instruments tied to open positions and collateral requirements, and the report does not present them as amounts to be netted.[1]
The arrangement illustrates how cross-market clearing links create obligations that sit beside conventional member margin and default funds. Participants can use connected markets, but the infrastructures must manage exposures that move across legal entities and banking instruments. The public balance sheet alone cannot reveal the full gross scale because trust assets, contingent assets and related liabilities are excluded under the stated accounting treatment.[1]
The much larger margin base
SGX-DC required S$14.3876 billion of margin at June 30. Clearing members had lodged S$13.588740 billion in cash and S$3.725251 billion in quoted government securities, a total of S$17.313991 billion. That was S$2.926391 billion, or 20.3 per cent, above the disclosed required margin amount.[1]
This does not necessarily represent excess collateral that members could immediately withdraw. Requirements can vary by account, product, intraday risk and eligible collateral; securities are reported at fair value; and clearing houses can call additional collateral. The calculation simply reconciles the totals in Note 36 and shows that the Mutual Offset letter of credit belongs to a different, much smaller layer than ordinary position margin.[1]
SGX says cash margin is placed with banks and/or in reverse repurchase agreements. Interest is credited to clearing members, with a portion paid to SGX-DC as an administrative fee. That detail matters because collateral management has both risk and economic dimensions. The clearing house safeguards and invests cash under its framework while allocating interest, rather than treating the entire deposit as its own operating funding.[1]
Why off-balance-sheet does not mean absent
The phrase “off balance sheet” is often used as if it implied concealment or weak accounting. Here the annual report explicitly identifies the treatment and lists the amounts. SGX says the group’s clearing subsidiaries hold the assets in trust or as contingent assets and excludes both assets and corresponding liabilities from the statement of financial position. The issue is presentation and legal ownership, not missing disclosure.[1]
For analysts, the consequence is that conventional balance-sheet ratios do not capture the gross collateral administered by the clearing houses. Adding the assets to SGX’s corporate assets would be equally misleading because corresponding obligations and restrictions must also be recognised conceptually. Clearing collateral is not freely deployable shareholder capital.[1]
The contingent guarantees require a separate liquidity reading. SGX states that the timing of settlement cannot be determined because an obligation would arise from future events outside the group’s control. It also reported S$1.2452 billion of committed bank credit facilities for clearing and settlement risk management. Those facilities should not be described as a dedicated reserve solely for the CME arrangement; they support the broader clearing liquidity framework.[1]
Why this is not the S$17.3bn member-margin story
A separate SGX investigation reconstructed the much larger pool of cash and government securities lodged by derivatives-clearing members and explained why those assets are not exchange-owned corporate cash. This article examines a different layer: reciprocal contingent instruments connecting SGX-DC and CME under the Mutual Offset Settlement Agreement. Ordinary member margin secures clearing positions under SGX’s general framework; the letter of credit and related guarantees support specified cross-exchange obligations.[1]
The distinction changes the reader payoff. The member-margin article asks who owns and benefits from a large collateral pool. This investigation asks how a bilateral infrastructure link can create off-balance-sheet contingent resources comparable with the member-funded clearing-fund pool, and what remains unknown about draw conditions, issuer concentration and waterfall sequencing. The same annual report supplies both facts, but they are not materially interchangeable.[1]
What the comparison reveals
The key finding is institutional scale. A single named cross-exchange collateral instrument was larger than the disclosed cash-and-securities pool contributed by SGX-DC members to the clearing fund. That does not show that the mutual-offset arrangement is riskier than the member base. It shows that bilateral infrastructure links can be as financially significant as the familiar default-fund layer.[1]
The member clearing fund is designed to mutualise specified losses after other resources in a default waterfall. The CME letter of credit serves the collateral requirements of a particular agreement. Without the agreement and rulebook provisions, an outsider cannot determine the exact order in which each would be available, the exposures each covers or the circumstances in which the bank instruments could be drawn.[1]
A fuller public account would identify the issuing-bank concentration, maturity and renewal profile of the letters of credit, eligible currencies, stress methodology, haircuts and the relation between the S$517.8 million lodged by CME and the S$491.871 million of SGX-DC guarantees. Publishing those mechanics need not expose operationally sensitive details; aggregate concentration and governance information would be sufficient for market users to understand resilience.[1]
The conclusion would change if the disclosed member deposits were not the relevant clearing-fund denominator for the mutual-offset comparison, or if other dedicated funded resources should be included. SGX’s default waterfall includes its own contributions and assessments beyond the deposits tabulated in Note 36. This article therefore does not claim that S$493.049 million is the total loss-absorbing capacity of SGX-DC.[1]
For brokers clearing across jurisdictions, the practical lesson is that counterparty analysis must extend beyond headline margin and corporate capital. It should map trust assets, letters of credit, guarantees, default funds, liquidity facilities and the legal sequence connecting them. SGX’s disclosure allows one part of that map to be reconstructed: CME’s S$517.8 million mutual-offset letter of credit exceeded member clearing-fund deposits by 5.0 per cent, while a near-matching S$491.871 million guarantee exposure ran in the opposite direction.[1]
Sources & further reading
- Singapore Exchange Annual Report 2026 Singapore Exchange · 29 Sep 2026 · Accessed 9 Nov 2026