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Understanding PSO: Financial Transaction Automation and Risk Management
Moving money between financial institutions or businesses is more complex—and riskier—than it first appears. Beyond transferring funds, teams must ensure timely receipt, accurate settlement, and efficient use of liquidity. It is much like managing a busy road network so every vehicle reaches its destination without congestion or collisions.
Pre-settlement optimization (PSO) is a set of technologies and processes designed to address these challenges. This article explains what it means, how it works, and why it matters as automation and risk management become increasingly important.
What is PSO? Preparing a transaction before settlement
Pre-settlement optimization prepares funds or assets before a transaction settles. Participants place cash, securities, or other assets in the system in advance, so that the resources required for settlement are ready. Think of it as checking that you have everything you need before an important exam.
Financial institutions segregate collateral and prefund cash to reduce the risk of failure at the moment of exchange. In a securities transaction, this exchange may use delivery versus payment (DvP), which links delivery of securities to payment. Preparing the collateral and cash in advance helps both legs complete successfully.
This reduces liquidity risk—the possibility that a transaction fails because funds are unavailable at settlement. It also strengthens the wider payment network. Recording and checking terms such as amounts, maturity dates, settlement times, and interest rates in smart contracts can enable near-zero-touch operations, with much less manual administration.
How does PSO work in practice?
PSO brings together several steps to improve the reliability and efficiency of financial transactions.
1. Segregate collateral before settlement
Cash, securities, or stablecoins intended for settlement are placed in a separate account in advance. They are kept apart from other transactions and operating funds. The principle is similar to setting money aside in a dedicated payment account: those funds are reserved for the specified transaction.
2. Prefund the required cash
Cash is deposited into the system by a specified deadline and made available for immediate settlement. Preparing funds in advance helps prevent a transaction from being canceled because the payer lacks liquidity at the critical moment.
3. Assess risk and monitor conditions automatically
Smart contracts continually check whether transaction conditions are met. Collateral availability, changes in value resulting from exchange-rate movements, maturity dates, and participants’ ability to pay are verified in real time. If conditions are not satisfied or a risk signal appears, the system can issue an alert or halt settlement. Automated monitoring reduces the need for continuous manual supervision.
4. Record settlement automatically
Transaction details are recorded on a blockchain or distributed ledger as settlement takes place. This reduces manual recordkeeping and associated human error. Tamper-resistant records also provide an objective, traceable basis for investigating later disputes or discrepancies.
5. Connect modules and external systems
PSO systems can connect to banks, clearing houses, and other financial institutions through APIs and oracle or interoperability networks, such as Chainlink CCIP. Integrating financial positions, asset holdings, and transaction records allows modules to coordinate without requiring separate manual approval at every step.
What makes near-zero-touch operations possible?
Near-zero-touch describes operations in which the system handles most processes automatically, with minimal direct intervention. PSO supports this through several mechanisms:
Smart contracts: Transaction terms and rules are expressed in code. Execution occurs only when predefined conditions are satisfied, helping ensure that eligible collateral enters the settlement process.
Real-time monitoring and controls: The system monitors collateral and cash before settlement. If it detects a risk of failure, it can halt the transaction or use a predefined alternative processing route.
Event-driven execution: Payment and settlement procedures run when specific events occur, such as a deadline being reached or collateral being deposited. Alerts and interruption mechanisms respond to anomalies.
Atomic processing: Connected institutions share data in real time, and all parts of an atomic transaction succeed or fail together. This avoids leaving a transaction partially completed.
The result is a coordinated workflow—from preparation and verification to payment and recordkeeping—that minimizes delays and errors caused by manual intervention.
Examples of pre-settlement optimization
The principles behind PSO are already used across financial markets and settlement systems.
1. CLS Settlement: reducing foreign exchange settlement risk
CLS (Continuous Linked Settlement) illustrates the value of preparing funding and coordinating settlement. Participating institutions arrange the required currency funding ahead of settlement sessions. Payment versus payment (PvP) links the two currency payments and reduces the risk that one party pays while the other fails to deliver—known as Herstatt risk. This is an important safeguard for the global financial system. (Reference: CLS Group)
2. Blockchain-based multi-CBDC networks
Pre-settlement preparation also plays an important role in multi-CBDC initiatives involving central banks and global financial institutions. Participants make digital currency or stablecoin funds available in advance, while smart contracts verify the settlement conditions. Atomic execution aims to reduce risk and improve liquidity efficiency. (Related reading: BIS — Project Helvetia)
3. Real-time energy trading
PSO techniques also extend beyond financial markets to real-time energy trading, described here as Energy Live Dispatch (ELD). Generators register available supply, prices, and delivery terms, and provide collateral or deposits in advance to reduce settlement failure risk. These preparations support automated blockchain-based settlement and more reliable market operations.
Comparing traditional and Web3 approaches
Both traditional and Web3 systems share the same objective: reduce risk and prepare funds and collateral before settlement. Their implementation differs substantially.
Area | Traditional systems | Web3 systems |
|---|---|---|
Collateral and cash management | Separate accounts at centralized institutions, manual administration, and fragmented information. | Automated deposits and segregation through smart contracts, with integrated on-chain management. |
Verification and approval | Manual approvals and complex, time-consuming procedures. | Smart contracts automatically verify conditions and execute approvals. |
Risk monitoring | Event collection and manual intervention, with limited real-time visibility. | Round-the-clock automated monitoring using on-chain and oracle data. |
Payment and settlement | Centralized batch processing, with potential delays. | Atomic transactions that coordinate settlement between participants in real time. |
Transparency and auditability | Internal records, limited external access, and periodic audits. | Tamper-resistant blockchain records that support real-time tracing and verification. |
Operator involvement | Manual or partially automated workflows that depend on staff and remain exposed to human error. | Near-zero-touch automation with minimal intervention and fewer manual errors. |
Traditional systems face processing delays, operational workload, and constraints on real-time risk management. Web3 approaches strengthen automation, transparency, scalability, and continuous verification, creating new possibilities for payments and digital asset markets.
The benefits of PSO
PSO goes beyond simply depositing money in advance. It combines preparation, controls, and automation to address financial risks while improving the use of funds.
Operational efficiency: Less manual handling reduces human error and operational risk, which can lower costs.
Lower liquidity costs: Netting and multilateral offsetting reduce the funds needed for settlement and the liquidity participants must hold.
More reliable settlement: Automated controls and collateral eligibility checks help contain the consequences of a participant’s failure to settle.
Transparent monitoring and auditability: Transaction and settlement records stored on a blockchain can be inspected and audited, providing a dependable basis for resolving disputes.
An important part of digital financial infrastructure
PSO combines early risk controls, efficient funding, and highly automated operations. Real-time automation and transparency in Web3 environments can address limitations of traditional processes.
These approaches are expanding across global finance, digital assets, and real-world markets such as energy and commodities. Pre-settlement verification and automation are becoming essential practices for reliable, modern payment systems.
To learn more about PSO or discuss a partnership, contact our team.
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