ABOR Solution

Settlement date matters because accounting state is not always the same as investment state. A trade may be executed and visible in the IBOR before the security or cash has settled. A sale may change exposure before the accounting record recognizes settled proceeds. A corporate action may be announced before entitlement, election, cash movement, or position change is fully reflected. The ABOR has to preserve those timing differences instead of flattening them.

Tax lots and cost basis make the ABOR more granular than a summary balance. Partial sales, transfers, amortization, accretion, corporate actions, FX effects, and adjustments can change the accounting record at lot level. Without lot-level history, realized gain or loss, book value, and reporting support become difficult to explain.

Accruals connect instrument terms and fund expenses to accounting periods. Coupon interest, dividends, financing charges, management fees, performance fees, legal fees, administration fees, and other expenses may be earned, incurred, received, paid, estimated, reversed, or adjusted on different dates. The ABOR should carry calculation basis, period, source, approval state, and close impact.

Reconciliation is the trust layer. An ABOR solution should compare accounting state against custodian, bank, broker, administrator, pricing, internal, and ledger records. Breaks should be classified, owned, resolved, adjusted, or escalated. A close process without break evidence leaves the accounting record exposed to later reconstruction.

The subledger-to-GL handoff is a boundary, not a file dump. The ABOR may contain detailed trade, lot, cash, accrual, and valuation records. The general ledger may consume summarized journal entries or balances. The handoff should preserve enough lineage for finance, accounting, audit, and reporting teams to trace a summary back to source activity and approvals.

Source capture brings together accounting-relevant activity. Trades, allocations, settlements, cash movements, prices, FX rates, income events, expenses, corporate actions, collateral movements, transfers, administrator records, bank files, custodian records, and internal adjustments all affect the accounting book. Each record should retain source system, timestamp, raw payload, normalized fields, and processing status.

Accounting treatment converts operating events into accounting events. The solution maps account, entity, portfolio, fund, instrument, tax lot, currency, settlement date, accrual rule, valuation input, fee rule, and reporting treatment. An event that is valid for operations may still be incomplete for accounting if settlement, cash, price, lot, or approval evidence is missing.

Reconciliation tests the accounting state against external and internal evidence. Cash reconciliation confirms whether accounting cash agrees to bank, custodian, settlement, and payment records. Position reconciliation confirms whether settled holdings agree to custodian, broker, administrator, CSD, or ledger records. Transaction reconciliation checks execution, allocation, confirmation, settlement, fee, and adjustment records. Valuation checks test price, FX, source, tolerance, and override status.

Adjustment control is where ABOR discipline is visible. Price overrides, cash corrections, lot adjustments, accrual reversals, fee changes, corporate action treatments, and manual journal support should not be hidden edits. Each change should have reason, owner, evidence, approval, timestamp, and close impact.

Close controls determine which records can be used. The system should show open breaks, unresolved timing items, accepted estimates, material exceptions, approved overrides, closed periods, and downstream output eligibility. The close state should be clear enough that later reviewers can understand what was known when the record was published.

Publication sends accounting state to the correct consumers. Outputs may include ABOR views, subledger records, journal summaries, trial balance support, NAV support, regulatory reporting inputs, audit packages, management reporting, and data warehouse feeds. The strongest ABOR output is traceable back to source events, reconciliation, adjustments, and approvals.