Reinventing reserve management: governance, risk and agility in a fragmented global financial system

Why reserve management has to be agile

Global markets in 2025 saw divergence from historical patterns. With sticky global inflation and uneven global growth, prices can move sharply in response to a single policy headline, and liquidity feels thinner. Markets may appear calm for weeks, then suddenly risk appetite shifts and positions unwind.

Three shifts sit behind this new reality. First, trade policy has become a moving target. Tariffs and restrictions are back in play, and businesses are forced to plan for sudden changes to trade rules. Second, geopolitics is shaping financial markets more directly. Friendshoring, export controls and sanctions have underscored the value of resilience, access and reliable market plumbing. Third, familiar market relationships are less dependable. Correlations can flip, and currencies do not always follow rate differentials in a neat way when expectations and policy divergence take over.

For reserve managers, the message is simple. Safety and liquidity remain non-negotiable, but they are no longer enough on their own. Reserves also need to be managed with faster decision cycles, clear guardrails and stronger stress readiness.

This is the context for the transformation to Bank Indonesia’s FX Reserve Management Framework 5.0, introduced in 2025. The update focuses on three practical upgrades: stronger governance to move faster with clear accountability; a tighter risk framework to protect liquidity and resilience under stress; and faster implementation so the portfolio can adapt as market conditions change.

The role of FX reserves in BI’s policy mix

Foreign exchange reserves are not managed as a standalone investment pool. They are part of Bank Indonesia’s broader policy toolkit, supporting the implementation of monetary and exchange-rate policy, help fulfil external obligations and strengthen resilience by providing a buffer when global markets turn in adverse conditions.

These mandates explain why FX reserve management starts with safety and liquidity before optimising returns. Bank Indonesia’s guiding principle is to preserve value and ensure readiness to meet immediate obligations, while still aiming to generate optimal income within those constraints. In practice, this means the reserves’ functions must protect liquidity during stress, manage market risk even when high-quality bonds can be volatile, and respond quickly without compromising discipline.

The central bank’s Foreign Exchange Reserve Management Framework 5.0 was designed based on these principles. It does not chase return for its own sake. Instead, it sets clear boundary conditions and decision rules first, then manages the portfolio more actively within those guardrails.

Reinventing the playbook

Framework 5.0 is BI’s response to global situations where market regimes can change quickly. It combines clearer reserve adequacy thresholds, faster decision cycles, and a more integrated approach to managing liquidity and risk across the whole reserve portfolio.

The starting point is FX reserves adequacy, which is crucial for the central bank to indicate capacity to stabilise the exchange rate if the domestic currency comes under pressure, cover short-term external debts and imports during crisis, support financial stability against capital outflows, and strengthen credibility with investors. Under Framework 5.0, BI defines ‘enough reserves’ operationally, and establishes governance and portfolio structures that can respond more quickly when the environment shifts.

Adequacy guardrails: redefining ‘enough’

In today’s markets, reserve adequacy is not just a reporting number. It is a guardrail that protects policy space. If reserves fall too low, even a moderate shock can quickly become a confidence problem. That is why Framework 5.0 puts reserve adequacy at the centre of the operating model.

Framework 5.0 introduces two thresholds anchored to the International Monetary Fund’s Assessing Reserve Adequacy benchmark. Bank Indonesia sets a minimum threshold anchored to that benchmark, supported by a higher long-term buffer. You can think of this as a two-line system. The first line is the minimum that should not be breached. The second line is a higher buffer that reflects a more uncertain environment, and provides additional capacity to absorb shocks.

The adequacy benchmark matters because it considers multiple risk channels simultaneously, rather than just one. It reflects vulnerabilities, including trade shocks, capital outflow risks and short-term external liabilities. By anchoring the minimum threshold to this benchmark, Bank Indonesia makes the minimum level explicit and easier to monitor. Setting a higher long-term buffer helps avoid managing reserves at the edge, especially when shocks can be abrupt and market liquidity can disappear quickly.

In today’s markets, reserve adequacy is not just a reporting number. It is a guardrail that protects policy space

Framework 5.0 also strengthens the logic behind these thresholds by treating reserves as insurance. Holding reserves has a clear benefit. When external funding dries up or markets suddenly turn risk-off, reserves allow the central bank to provide liquidity and stabilise conditions. But reserves also carry a cost, as they are typically invested in safe, liquid assets that yield modest returns. The simple message is that the appropriate reserve level depends on the likelihood of a sudden stop in external funding, the potential damage it could cause, and the cost of maintaining a large buffer.

Most importantly, the two-threshold system is meant to guide decisions, not just describe the situation. When reserves are comfortably above the minimum, the portfolio can be managed with more flexibility while staying within safety (both credit and market risks) and liquidity requirements. As reserves approach the minimum, priorities tighten automatically. The focus shifts more strongly towards liquidity readiness and capital preservation, and risk-taking capacity declines. This makes the framework more disciplined because actions are anchored in predefined guardrails, rather than in discretionary judgement under stress.

In short, Framework 5.0 turns reserve adequacy into a working tool. The two thresholds provide clarity on what must be protected and the desired buffer size. They also strengthen confidence by showing that reserves are managed against explicit benchmarks that reflect real vulnerabilities, not vague comfort levels.

Making the framework workable

Clear adequacy thresholds are useful only if the organisation can act on them. In a fast-moving market, the biggest risk is not only a bad market move, but also slow or unclear decision-making. Framework 5.0, therefore, puts strong emphasis on governance, meaning who decides what, how often decisions are reviewed, and how actions are escalated when conditions change.

A key upgrade is the use of two decision horizons. The long-term horizon sets strategic direction, with a multi-year view reviewed regularly. The short-term horizon focuses on current changes, and is supported by more frequent reviews. This structure matters because markets can shift meaningfully within weeks or even days, not years. The long-term horizon keeps the portfolio anchored and avoids constant overreaction. The short-term horizon provides a formal mechanism to revisit assumptions and adjust positioning as the environment changes.

This is also where accountability becomes practical. With clearer decision cycles, BI can separate three types of decisions. Strategic decisions define the broad risk position and the main portfolio structure. Tactical decisions allow measured adjustments when the market regime shifts, for example, when volatility rises, liquidity becomes thinner or policy divergence increases. Execution decisions focus on implementing changes efficiently while staying within constraints. This separation reduces confusion and accelerates action because each governance layer knows its role and boundaries.

Governance is further strengthened by using clear triggers and escalation procedures. When conditions remain stable, the review cycle provides discipline and prevents noise-driven turnover. When risk indicators deteriorate or reserve adequacy approaches minimum thresholds, the system is designed to tighten priorities and accelerate co-ordination. The point is not to trade frequently. The point is to avoid being forced into ad hoc decisions during stress, when time is short and information is incomplete.

The outcome is speed with discipline. BI can respond faster while still following a structured process. This reduces both delayed action in a crisis and unnecessary turnover in normal times. In a fragmented market environment, that combination is essential because shocks often arrive suddenly and liquidity windows can be short.

Total-portfolio approach

One of the most significant practical shifts in Framework 5.0 is how Bank Indonesia manages its reserves internally. Traditionally, many central banks split reserves into separate tranches – for example, a liquidity tranche for immediate needs and an investment tranche for longer-term returns. The idea is sensible, but over time, it can create rigid silos. Each tranche develops its own rules, benchmarks and comfort zones, and moving assets across buckets can become slow and procedural.

Framework 5.0 moves away from that model. BI manages reserves with a total-portfolio approach, treating the reserve pool as a single integrated portfolio guided by a single strategic asset allocation. The advantage is that BI can assess liquidity, risk and returns in one coherent view, rather than optimising each silo separately. It also reduces mental accounting, where teams become overly protective of one bucket and overly aggressive in another, even when the overall portfolio position does not justify it.

A common concern is whether a total-portfolio approach weakens liquidity readiness. In Framework 5.0, it does not. Liquidity remains a hard requirement. The difference is that liquidity is protected by explicit liquidity parameters and operational tools, rather than by a rigid tranche structure. In practice, BI maintains a defined share of liquid assets that can be mobilised quickly under stress. This is supported by a preference for highly liquid instruments and a shorter-duration stance when needed, so the portfolio is not overly exposed to sharp rate moves at the wrong time.

This structure also supports faster implementation when the environment changes. If global rates jump, BI can shorten duration more quickly to protect capital. If currency risks change, the central bank can rebalance exposures without being constrained by silo boundaries. If liquidity needs rise, BI can increase liquid holdings without the friction of transferring assets across separate portfolios. In volatile regimes, the cost of slow execution can exceed the cost of moving slightly early.

Overall, the total-portfolio approach is not about taking more risk. It is about managing the same core mandate more flexibly and efficiently. Safety and liquidity remain the foundation, but BI can adjust positioning faster and more coherently across the whole reserve pool. In a world where liquidity windows can be short and correlations can break, that flexibility becomes a form of resilience.

Protecting value in a volatile environment

Managing reserves as a single integrated portfolio increases flexibility, but it also requires tighter, clearer risk discipline. Framework 5.0, therefore, emphasises practical, easy-to-act-on risk controls. The objective is straightforward. BI wants to preserve value and maintain liquidity readiness even when market moves are large, and correlations do not behave as expected.

A key focus is downside protection. In calm periods, many portfolios can look safe on average. The problem is what happens in the tail. When rates move sharply, risk sentiment collapses or liquidity thins, losses can rise quickly even in high-quality fixed income. Framework 5.0 responds by placing greater emphasis on stress behaviour and tail risk, not only on normal-time volatility. The framework encourages a portfolio design that can withstand adverse scenarios and perform well in the baseline.

This is also why duration management becomes more important. In a high-volatility environment, duration is a key driver of mark-to-market swings. Framework 5.0 enables faster duration adjustments when the interest-rate regime changes, preventing the portfolio from being locked into a position designed for the previous cycle. This is not about short-term trading. It is about aligning interest-rate exposure with the current risk environment so that the reserve portfolio remains stable and deployable.

As reserves approach the minimum, priorities tighten automatically. The focus shifts more strongly towards liquidity readiness and capital preservation, and risk-taking capacity declines

Currency and asset allocation are also managed with a clearer risk lens. Framework 5.0 strengthens the use of structured inputs when setting the strategic allocation, such as market size and investability, liquidity considerations and macrofinancial factors. The point is to avoid a purely historical approach that assumes the future will behave like the past. When market relationships are changing, allocation decisions should be grounded in forward-looking risk assessment and scenario planning.

Implementation discipline is the final part. A strong framework can still fail if execution is slow or fragmented. Under Framework 5.0, BI’s faster reviews and clearer governance help ensure that portfolio adjustments can be implemented in time, within limits and with a clear record of why the change was made. This matters because reserve management is not only about outcomes. It is also about credibility. The institution needs to explain that actions were consistent with the mandate and guardrails, especially under stress.

In short, Framework 5.0 strengthens risk controls in ways that match the new regime. It focuses on tail risk and stress resilience, supports more responsive duration and exposure management, and reinforces disciplined execution. This combination helps BI protect the reserve portfolio’s value while maintaining liquidity readiness.

Beyond market and liquidity considerations, Framework 5.0 also reinforces safeguards around credit risk, with a sharper focus on counterparty and issuer exposures. In a more volatile and less predictable global environment, traditional assumptions about creditworthiness can deteriorate quickly, even for long-standing high-grade names. Framework 5.0 therefore strengthens pre-trade and ongoing credit assessments, ensuring that exposures reflect not only headline ratings, but also forward-looking indicators such as funding stress, balance-sheet resilience and sovereign-linked vulnerabilities. This integrated approach ensures that every exposure contributes positively to the portfolio’s resilience, reinforcing BI’s ability to preserve capital and maintain liquidity even when credit conditions shift rapidly.

Expanding co-operation

Framework 5.0 is not only about internal portfolio choices. It also reflects a wider view that resilience can be strengthened through co-operation and better market access. In a fragmented global system, the quality and stability of the investor base matter. A broader, more stable base can support market depth and improve liquidity during stress, ultimately strengthening the financial system’s resilience.

Bank Indonesia has developed a dedicated investment facility to deepen co-operation with foreign central banks and strengthen Indonesia’s integration into the global financial system. The facility is designed to provide foreign central banks with more direct and efficient access to Indonesia’s domestic financial markets. The aim is long-term engagement built on trust and on central banks’ role as stable institutional investors.

This co-operation initiative supports market resilience in two ways. First, it broadens the foreign central bank investor base for Indonesian government securities, contributing to market depth and liquidity under both normal and stressed conditions. Second, it provides a more streamlined, end-to-end setup that can reduce operational friction. When processes are simpler and access is clearer, participation is more consistent, and liquidity is more reliable under market pressure.

The facility offers an integrated set of services that supports execution and operational efficiency. Beyond the operational layer, the strategic point is that co-operation strengthens the ecosystem around the reserve management function. It helps reinforce stable links between institutions, improves market functioning and supports resilience at a time when global finance is becoming more fragmented. In a more fragmented system, bilateral institutional links among central banks can partially offset declining market depth in certain jurisdictions.

What Framework 5.0 changes in practice

Framework 5.0 is not a concept document. It changes how decisions are made and how the portfolio is run when markets move quickly.

First, it clarifies priorities under stress. The adequacy thresholds act like guardrails. When reserves are comfortably above the minimum, BI has more room to optimise within the safety and liquidity mandate. As reserves approach the minimum, the portfolio position tightens automatically. Liquidity readiness and capital preservation become the dominant objectives, and risk-taking capacity is reduced. This reduces uncertainty within the institution during a fast-moving episode by clarifying what matters most.

Second, it reduces decision delay. Faster reviews and clearer governance mean BI does not need to wait for a multi-year strategy review to respond to a new regime. If the environment changes meaningfully, the central bank has a formal process to reassess assumptions and adjust positioning within a disciplined structure. In modern markets, the window to act can be short and slow implementation can be costly.

Third, it improves portfolio coherence. A total-portfolio approach enables Bank Indonesia to make a single integrated decision on liquidity, risk and return, rather than managing siloed tranches that can diverge. This helps BI rebalance more efficiently and avoid internal frictions. It also supports faster liquidity mobilisation, if needed, because the portfolio is managed with explicit liquidity requirements and tools.

Fourth, it strengthens credibility. Reserve management is ultimately about confidence. A framework that is clear internally, anchored in guardrails and supported by disciplined governance makes it easier to explain why Bank Indonesia takes certain actions. That matters not only for internal accountability, but also for how markets interpret BI’s resilience and readiness when conditions turn adverse.

Future challenges and opportunities

Even with a stronger framework, the operating environment is likely to remain demanding. Fragmentation and geopolitical risks can influence not only market prices, but also market functioning and operational considerations. Liquidity stress may remain episodic, reinforcing the value of strong liquidity buffers and stress-tested mobilisation capacity. Policy divergence across major economies can also keep rates and FX dynamics unstable, making scenario-based risk management and faster strategy reviews increasingly important.

The opportunity is that a more modern operating model provides BI with a stronger platform for managing these risks. With clearer adequacy guardrails, faster decision cycles, integrated portfolio management and stronger co-operation channels, reserve management can remain disciplined while also being more responsive to regime shifts.

Lessons to learn

Bank Indonesia’s experience offers three practical takeaways for reserve managers: make FX reserves adequacy operational, determine clear thresholds and set priorities before stress hits, and reduce ad hoc decisions; treat governance as part of the investment process because review cadence and decision rights matter as much as asset selection, speed without accountability is risky, but accountability without speed can be costly; and use integration to strengthen resilience, by managing reserves as one portfolio with strong risk discipline and co-operation that supports market depth, helping preserve policy space in a faster, more fragmented global system.