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💵 '''Cash flow matching''' is an [[Definition:Asset-liability management (ALM) | asset-liability management]] technique in which an [[Definition:Insurance company | insurer]] structures its [[Definition:Investment portfolio | investment portfolio]] so that the timing and amount of asset cash inflows — coupon payments, maturities, and scheduled principal returns — align closely with expected liability outflows such as [[Definition:Insurance claim | claim]] payments, policyholder benefits, and operating expenses. The approach is especially relevant for life insurers, annuity writers, and other carriers with long-duration, predictable liability streams, though [[Definition:Property and casualty insurance (P&C) | property and casualty]] companies also use it for structured settlement portfolios and workers' compensation run-off books.

⚙️ Portfolio managers begin by projecting the insurer's liability cash flows using [[Definition:Actuarial analysis | actuarial models]] that estimate when and how much the company will need to pay. They then select fixed-income securities — government bonds, investment-grade corporates, mortgage-backed instruments — whose cash flows mirror those liability projections period by period. A perfectly matched portfolio theoretically eliminates [[Definition:Interest rate risk | interest rate risk]] and reinvestment risk, because every dollar needed to pay a future obligation is already earmarked. In practice, perfect matching is rarely achievable, so insurers combine cash flow matching with [[Definition:Duration matching | duration matching]] and stress testing under various [[Definition:Interest rate risk | interest rate]] scenarios to keep mismatches within [[Definition:Risk tolerance | risk tolerance]] limits set by the board and [[Definition:Regulatory compliance | regulators]].

📈 Effective cash flow matching safeguards an insurer's ability to honor its promises without being forced to sell assets at unfavorable prices during market dislocations. Rating agencies and regulators view strong [[Definition:Asset-liability management (ALM) | ALM]] practices, including cash flow matching, as a sign of prudent financial management — a factor that feeds into [[Definition:Credit rating | credit ratings]] and [[Definition:Risk-based capital (RBC) | risk-based capital]] assessments. For life insurers managing guaranteed-rate products in volatile rate environments, the discipline of matching is not merely academic; it is the mechanism that keeps the balance sheet solvent when markets move sharply. As insurers increasingly allocate to less liquid alternatives for yield enhancement, maintaining a well-matched liquid core becomes even more critical.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Asset-liability management (ALM)]]
* [[Definition:Duration matching]]
* [[Definition:Interest rate risk]]
* [[Definition:Investment portfolio]]
* [[Definition:Risk-based capital (RBC)]]
* [[Definition:Statutory accounting principles (SAP)]]
{{Div col end}}

Definition:Cash flow matching - Revision history

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