Saudi vs UAE: Digital Securities Settlement Infrastructure Comparison

Saudi Arabia’s Tadawul-Edaa DLT settlement infrastructure and the UAE’s ADX-NASDAQ digital securities partnership represent the two most advanced exchange-integrated settlement systems in the Middle East. Both jurisdictions have invested heavily in modernizing post-trade infrastructure through distributed ledger technology, but their architectural approaches, regulatory oversight models, and integration strategies differ significantly. Saudi Arabia processes approximately SAR 12-18 million in daily digital securities volume through T+0 atomic settlement on R3 Corda, while the UAE’s ADX digital securities platform, operational since late 2024, processes approximately AED 8-15 million daily through a NASDAQ-powered DLT settlement layer.

Architecture Comparison

Saudi Arabia: Tadawul-Edaa Integrated Model

Saudi Arabia’s settlement architecture integrates DLT directly into the existing exchange and depository infrastructure:

Exchange Layer: Tadawul’s digital securities platform extends the X-Stream INET trading engine to handle digital securities orders through the same matching engine as conventional securities, ensuring consistent price discovery and CMA market surveillance coverage.

Settlement Layer: R3 Corda-based atomic settlement provides T+0 delivery-versus-payment. Trade execution and settlement occur simultaneously — tokens and payment are exchanged atomically, eliminating counterparty risk during the settlement window. Digital riyal or SAR stablecoins serve as the payment leg.

Depository Layer: Edaa serves as central depository for all exchange-listed digital securities, maintaining the registrar function while integrating blockchain-based record-keeping with conventional CSD operations.

UAE: ADX-NASDAQ Partnership Model

The UAE’s settlement architecture uses a technology partnership model:

Exchange Layer: Abu Dhabi Securities Exchange (ADX) operates the primary digital securities exchange, using NASDAQ’s market technology for order matching and price discovery. The Dubai Financial Market (DFM) is developing a separate digital securities capability.

Settlement Layer: NASDAQ’s DLT settlement technology provides near-instantaneous settlement (T+0 target, though some transactions settle at T+1 depending on complexity). The settlement system uses an enterprise blockchain layer distinct from Corda.

Depository Layer: The Abu Dhabi Securities Clearing Company (ADSCC) handles clearing for digital securities, operating separately from its conventional clearing functions rather than integrating the two systems.

Settlement Finality Comparison

Saudi Arabia’s atomic settlement provides stronger settlement finality because the DvP guarantee is enforced at the protocol level — either both legs settle or neither does. The UAE’s settlement, while targeting T+0, includes application-layer settlement logic that allows for rare settlement failures requiring manual intervention.

Regulatory Oversight Comparison

Saudi Arabia: The CMA provides unified regulatory oversight for all settlement infrastructure, with SAMA co-regulating the payment leg. The joint CMA-SAMA framework ensures coordinated oversight of both the securities and payment components of settlement. Saudi Arabia’s FATF membership (since 2019) ensures that settlement AML/CFT monitoring meets international standards.

UAE: Settlement oversight is split across multiple regulators — VARA for virtual assets in Dubai, the Securities and Commodities Authority (SCA) for federal-level securities regulation, ADGM’s Financial Services Regulatory Authority for Abu Dhabi Global Market entities, and the Central Bank of the UAE for payment clearing. This multi-regulator structure creates coordination complexity that Saudi Arabia’s dual-regulator model (CMA-SAMA) avoids.

Blockchain Protocol Selection

Saudi Arabia’s selection of R3 Corda reflects a deliberate architectural decision aligned with the CMA’s Securities Tokenization Standards:

• Privacy: Corda’s point-to-point transaction model ensures that settlement data is shared only between counterparties, meeting data privacy requirements under Saudi Arabia’s PDPL
• Enterprise integration: Corda’s Java/Kotlin architecture integrates with Tadawul’s existing enterprise systems
• Regulatory visibility: Corda’s notary mechanism provides the CMA with full transaction visibility without broadcasting settlement data to all network participants
• Identity integration: Corda natively supports identity-attached transactions, meeting FATF travel rule requirements

The UAE’s ADX-NASDAQ partnership uses NASDAQ’s proprietary DLT technology, which provides similar enterprise features but with less public documentation of its architectural capabilities. The proprietary nature of NASDAQ’s DLT layer creates vendor dependency that Saudi Arabia’s open-protocol approach (R3 Corda is open-source) avoids.

Custody Integration with Settlement

Saudi Arabia’s custody-settlement integration through Edaa provides a unified post-trade infrastructure that the UAE’s separated model does not match. When a trade settles atomically on Tadawul, Edaa’s register updates simultaneously — creating a single source of truth for ownership records.

Market Infrastructure Scale

Saudi Arabia’s settlement infrastructure operates within the context of the $2.7 trillion Tadawul exchange — the 9th largest globally by market capitalization according to the World Federation of Exchanges, with 400+ listed companies and SAR 4.76 billion in average daily trading value as of January 2026. Tadawul adopted T+2 settlement in April 2017 and the convergence roadmap now targets migration of all Tadawul settlement to DLT by 2028, meaning the settlement infrastructure must scale to handle full daily conventional trading volume plus digital securities volume. The February 1, 2026 abolition of the Qualified Foreign Investor (QFI) system — with foreign investor holdings at SAR 376.94 billion — is expected to increase settlement volumes further.

The UAE’s ADX has a market capitalization of approximately AED 2.8 trillion ($760 billion), with DFM adding approximately AED 600 billion ($163 billion). Combined UAE exchange settlement volume is approximately one-third of Saudi Arabia’s, giving Tadawul’s DLT infrastructure a significantly larger scaling challenge — but also a larger reward in terms of settlement cost savings and market efficiency gains.

Cross-Border Settlement

Both jurisdictions are developing cross-border settlement capabilities:

Saudi Arabia: Project Aber (SAMA-Central Bank of UAE bilateral CBDC experiment), BIS mBridge participation, and the CMA’s international cooperation framework with 11 bilateral agreements lay the foundation for cross-border atomic settlement of tokenized securities.

UAE: ADX’s planned interoperability with regional exchanges, VARA’s engagement with international virtual asset regulators, and participation in BIS innovation hub projects position the UAE for cross-border settlement capability.

The GCC Securities Regulators Forum’s Digital Assets Working Group is developing cross-border settlement standards that would enable interoperability between Saudi and UAE settlement systems — potentially allowing a tokenized sukuk listed on Tadawul to settle atomically through ADX for UAE-based investors, and vice versa.

Innovation Pipeline

Saudi Arabia’s settlement innovation pipeline includes:

• Sovereign digital sukuk settlement (2027) — requiring infrastructure capable of handling SAR 5 billion in initial issuance volume
• Digital-traditional convergence — unified settlement for all securities by 2028
• Commodity token settlement with physical delivery triggers
• Multi-chain settlement supporting multiple CMA-approved protocols

The UAE’s pipeline includes DFM digital securities launch, NASDAQ-powered smart contract settlement expansion, and ADGM’s planned tokenized fund settlement infrastructure.

Conclusions

Saudi Arabia’s settlement infrastructure advantage reflects the Kingdom’s strategy of integrating DLT directly into national exchange infrastructure rather than layering it alongside existing systems. The CMA’s convergence vision — where DLT settlement becomes the default for all Saudi securities — creates a long-term infrastructure advantage that the UAE’s partnership-based approach may not match. However, the UAE’s multi-exchange structure provides competitive optionality for market participants seeking diverse trading venues.

For entities evaluating settlement infrastructure capabilities, Saudi Arabia’s Tadawul-Edaa integration offers the most advanced atomic settlement in the Gulf, backed by Vision 2030 institutional commitment and the CMA’s comprehensive regulatory framework. The investor protection standards embedded in the settlement layer — including the custodian of last resort mechanism and mandatory insurance coverage — provide institutional-grade safety that supports the Kingdom’s objective of attracting sovereign wealth fund and pension fund participation in tokenized securities markets.

PIF Tokenization Exploration and Sovereign Settlement Capacity

Saudi Arabia’s settlement infrastructure advantage is amplified by the Public Investment Fund’s exploration of tokenization for portfolio company equity and sovereign debt instruments. PIF — managing approximately $1 trillion in assets — has engaged with Tadawul and Edaa on the technical requirements for tokenizing shares of listed PIF portfolio companies, which would require settlement infrastructure capable of handling institutional-scale block trades with atomic DvP guarantees. The UAE’s ADX-NASDAQ infrastructure, while capable, lacks the integrated CSD model that Edaa provides — meaning PIF-scale tokenization would require additional institutional infrastructure layers in the UAE that Saudi Arabia already has in place.

The Saudi Digital Academy has trained 60 settlement operations professionals through its “Digital Capital Markets Infrastructure” certification program, ensuring that Edaa and Tadawul have the human capital to operate the expanding DLT settlement infrastructure. The Saudi Blockchain Lab’s ongoing protocol optimization research — focused on R3 Corda throughput scaling to handle projected SAR 15-20 billion daily settlement volume by 2028 — provides the technical research pipeline that keeps Saudi Arabia’s settlement infrastructure at the frontier of exchange-integrated DLT capability.

The CMA’s international cooperation agreements with the UAE SCA, ESMA, and 9 other regulators provide the regulatory channels through which cross-border settlement interoperability between Saudi and UAE systems will eventually be achieved. The GCC Securities Regulators Forum’s Digital Assets Working Group is developing technical specifications for cross-border atomic settlement, with Saudi Arabia’s R3 Corda infrastructure and the UAE’s NASDAQ DLT system as the two primary networks requiring interoperability.

Institutional Infrastructure and Sovereign Backing

The settlement infrastructure comparison extends beyond technical specifications to the institutional depth supporting each system. Saudi Arabia’s settlement infrastructure benefits from PIF’s sovereign backing through the Saudi Exchange Group — Tadawul, Edaa, and Muqassa operating under unified governance. This vertical integration enables the digital-traditional convergence roadmap to proceed as a coordinated infrastructure upgrade. The UAE’s settlement infrastructure is distributed across separate entities (ADX, DFM, Nasdaq Dubai) without comparable unified governance.

The Saudi Blockchain Lab’s dedicated settlement research — including Corda throughput optimization targeting SAR 15-20 billion in daily capacity — provides technical advisory that directly informs Edaa’s infrastructure development. The Lab’s 35 researchers and 47 published papers represent a concentrated research effort that no UAE institution matches for settlement-specific blockchain research.

Elm Company’s Nafath digital identity platform provides unified investor identity verification across the Saudi settlement ecosystem, ensuring consistent KYC standards for all participants in Tadawul’s digital platform. The Saudi Digital Academy has trained 60 professionals in digital capital markets infrastructure operations, building the operational workforce for Edaa’s expanding DLT settlement capabilities.

The sovereign digital sukuk program (SAR 5 billion, 2027 launch) will test Saudi settlement infrastructure at sovereign issuance scale — a validation that the UAE has not yet attempted with its digital securities infrastructure. The planned retail distribution through STC Bank (12 million customers) and Rasan (3.5 million users) would generate settlement volumes that demonstrate the infrastructure’s capacity for mass-market tokenized securities operations.

Saudi Arabia’s FATF membership (since 2019) and the FATF’s 2024 “largely compliant” mutual evaluation provide independent validation of the Kingdom’s AML/CFT standards governing settlement operations. The CMA’s investor protection framework — including the Edaa custodian-of-last-resort mechanism and SAR 65M custody insurance mandate — creates settlement infrastructure protections that exceed both UAE requirements and international benchmarks established by the SEC and ESMA.

The Saudi FinTech Strategy 2025 targets SAR 50 billion in tokenized securities by 2030 — requiring settlement infrastructure that handles institutional-scale volumes with zero settlement failures. Edaa’s current track record — SAR 4.2 billion in cumulative pilot settlement volume with zero failures — demonstrates the infrastructure reliability that this target demands. The Fintech Saudi ecosystem coordinates between settlement infrastructure and the 12 broker-dealers connected to Tadawul’s digital platform, ensuring that front-end trading capabilities align with back-end settlement capacity.

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