Definition
A cap rate is the maximum credit that an indexed annuity contract can receive from an underlying index over a specified crediting period, regardless of how much the index actually rises.
Why it matters
The cap rate is the primary mechanism through which an indexed annuity limits upside participation in the underlying index. Together with the participation rate and the spread, it determines the relationship between the index's measured behavior and what is credited to the contract. The cap rate is generally set by the carrier at issue and is subject to renewal-period adjustment within contractually defined limits.
How it works
A cap rate sets a ceiling on the index credit for a given crediting period — if the index rises 12% during a one-year point-to-point period and the cap rate is 8%, the credit applied is 8% rather than 12%. Where a participation rate is also in effect, the participation rate is applied first and the cap is applied to the resulting figure, or vice versa, depending on the contract's specific crediting formula. Cap rates differ across indexes within a single contract — a carrier may offer a higher cap on a volatility-controlled index and a lower cap on a reference index like the S&P 500. Carriers adjust cap rates over the life of the contract within renewal-rate guidelines, and the cap rate can rise or fall in response to rate environments, hedging costs, and carrier pricing decisions; the contractual minimum cap rate sets the floor below which the carrier cannot drop the rate.
In practice
For an individual evaluating a fixed indexed annuity, the cap rate at issue is one of three numbers — alongside the participation rate and the spread — that together define the indexed-credit ceiling for the first crediting period. The more important questions concern the renewal-rate behavior: what has the carrier's historical cap-rate trajectory looked like on comparable contracts, and what is the contractual minimum cap below which the rate cannot fall? A professional should provide the carrier's renewal-rate history and the contractual minimum cap as part of any indexed annuity evaluation. The relationship between caps on different indexes within the same contract also matters — a high cap on a volatility-controlled proprietary index and a low cap on a reference index like the S&P 500 produces a structurally different experience than the reverse.
In the Longevity Standard Framework
Cap rate is supporting vocabulary in the Longevity Standard framework — one of the parameter levers through which the crediting parameter drag cost structure operates. Crediting parameter drag is one of five values that the cost-structure claim property can take, alongside none, explicit fee, embedded spread, and guarantee charge. The cost-structure property determines how much of the structural pooling benefit reaches the participant, and for fixed indexed annuities and registered index-linked annuities the cap rate is one of the primary mechanical levers through which that determination is made — together with the participation rate and the crediting spread, the cap rate sets the relationship between the underlying index's measured behavior and the credit applied to the contract.
Related terms
- Participation rate
- Spread (crediting)
- Index crediting strategy
- Point-to-point crediting
- Annual reset
- Cost structure
- Crediting parameter drag
- Fixed indexed annuity