SG institutional OTC workspace
Run an SG institutional OTC workspace where classification, custody readiness, RFQ commit, settlement affirmation, booking, and reconciled evidence close stay on one operating record.
Overview
Institutional OTC workspace for Singapore. StableNexus orchestrates classification, custody scope, approval flow, commit handoff, settlement confirmation, booking visibility, and evidence close while counterparties, custodians, and settlement rails stay explicit.
StableNexus coordinates orchestration, workflow, approvals, normalization, callback recovery, and evidence packaging. Dealing, custody, settlement, and official posting remain partner-owned.
Operating map
Route coverage
Compressed route chips used by cards and the public case surface — derived from the 6 canonical chapters below, not a replacement for them.
- Classification and custody scope
- Quote approval and trade commit
- Settlement affirmation and booking
- Exception-led close and evidence
Canonical chapters
- Counterparty scope and SG classification
- Custody readiness
- Quote formation and execution approval
- Execution commit and settlement instruction
- Settlement affirmation and booking
- Reconciliation sign-off and evidence close
Lifecycle stages
What becomes true at each chapter and which docs-derived surfaces that chapter feeds.
| Chapter | What becomes true | Derived surfaces |
|---|---|---|
| Counterparty scope and SG classification | SG classification lane fixed, counterparty scope approved. | counterparty_readiness_state |
| Custody readiness | Custody scope confirmed, balance posture bound. | custody_readiness_state |
| Quote formation and execution approval | Bilateral quotes collected, selected quote approved. | quote_state |
| Execution commit and settlement instruction | Trade committed, settlement instruction published. | execution_commit_state, settlement_affirmation_state |
| Settlement affirmation and booking | Settlement affirmed, booking posted. | settlement_affirmation_state, booking_state |
| Reconciliation sign-off and evidence close | Reconciliation signed off, evidence closed and exported. | reconciliation_signoff_state, evidence_close_state |
Control overlays
| Overlay | Overlay ID | Contract source |
|---|---|---|
| Callback / status update posture | status_update_posture | Partner Control Plane |
| Signed acknowledgment | signed_acknowledgment_posture | Partner Control Plane |
| Poll or inquiry fallback | fallback_posture | Partner Control Plane |
| Idempotent replay / recovery | replay_recovery_posture | Partner Control Plane |
| Operator approval / sign-off gates | operator_gate_posture | Partner Control Plane |
Lifecycle state map
Evidence and exports
Primary artifact keys per chapter and who acknowledges them on the run record.
| Chapter | Primary artifacts | Who acknowledges |
|---|---|---|
| Counterparty scope and SG classification | classification_snapshot, counterparty_scope_record | Counterparty / OTC desk |
| Custody readiness | custody_scope_receipt, custody_balance_confirmation | Custodian |
| Quote formation and execution approval | rfq_quote_record, quote_selection_record | Institution team |
| Execution commit and settlement instruction | trade_commit_record, settlement_instruction_pack | Counterparty / OTC desk, Settlement / booking partner |
| Settlement affirmation and booking | settlement_affirmation_receipt, allocation_posting_record, booking_reference_pack | Custodian, Settlement / booking partner |
| Reconciliation sign-off and evidence close | reconciliation_match_report, exception_resolution_log, reconciliation_signoff_record, workspace_packet, closeout_evidence, archive_manifest | Institution team |
Evidence derivation
Setup reference
| Field | Explanation | Related terms |
|---|---|---|
| Trade notional | Sets the notional carried through affirmation, booking, settlement, and reconciliation. Determines the values shown across the workflow records. | |
| Execution path | Supports more than one execution path. Controls how the trade is sourced before settlement. | |
| Traded product | Fixed for this case. Scoped to one traded product or pair. | |
| Trade direction | Fixed for this case. Determines how settlement and booking are read. | |
| Custody model | Fixed for this case. Scoped to one custody model. Determines how custody confirmation is handled. | |
| Settlement pattern | Fixed for this case. Scoped to one settlement pattern. Determines how affirmation and settlement are recorded. | |
| Counterparty class | Fixed for this case. Scoped to one counterparty class. Determines which counterparty context appears in the workflow. | |
| Operating window | Operational timing for classification, custody confirmation, quote validity, settlement affirmation, and close. Drives cutoff, quote-expiry, and reconciliation sign-off timing across the workspace. | Operating window |
Support terms
- OTC
- Over-the-counter trading executed directly with a dealer or broker.
- DvP
- Delivery versus payment: the asset and cash legs settle together.
- Execution adapter
- A connected external venue, broker, or settlement function used in the workflow.
- Operating window
- The timing rule that determines when movement can proceed.
Boundary
This docs page owns the canonical readable structure. The public case page and projector consume the shared schema. Runtime owns emitted truth. /ops remains separate.