Index Crediting, Caps & Floors

Equity indexed annuities

Equity indexed annuities (EIAs) combine features of both variable and fixed annuities. Like a variable annuity, an EIA’s return is linked to an equity index such as the S&P 500. Like a fixed annuity, an EIA provides minimum guaranteed returns. EIAs generally aren’t considered securities because the investor doesn’t bear downside investment risk when the index declines.

🔑 EIA in the annuity family — master comparison

⚠️⚠️ WHICH ANNUITIES ARE SECURITIES — guaranteed exam question

• Even though an EIA is linked to an index (during both the accumulation and distribution phases), the investor’s gains are limited.

🔑 The three ways insurers limit index-linked returns

Insurance companies typically limit index-linked returns in one of three ways:

• Participation rate
• Cap (ceiling)
• Spread rate (margin, asset fee)

• ⚠️ An EIA may include any one of the above or a combination. For example, a participation rate and a cap may exist, but no spread rate. Or, a cap and spread rate exist, but no participation rate. Or, all three or just one. The combination of restrictions enforced depends on the contract between the investor and the insurance company.

Floors

In exchange for limiting index-linked gains, EIAs provide minimum growth guarantees. Specifically, EIAs include a floor of at least 0%*, and sometimes higher. A floor is the minimum growth rate guaranteed to the investor. A 0% floor means the investor won’t be credited with a negative return even if the linked index declines. Some EIAs offer floors as high as 3%, which can produce consistent positive credited returns. However, higher floors are usually paired with lower caps and participation rates and/or higher spread rates.

*Test questions may not specifically mention a floor. You should always assume a floor of 0% exists if a floor is not identified.

Worked example (verbatim)

An investor contributes to an equity-indexed annuity with a 70% participation rate, 8% cap, and a 1% floor. The linked index returns a positive 10% return over the specified period just before the contract is adjusted. What return will be credited to the investor’s annuity? A) 5.6% B) 7.0% C) 8.0% D) 10.0%

Answer = 7.0% Start with the participation rate. The index returned 10%, so the initial credited return is 7% (10% × 70%). Next, check the cap and the floor:

• The cap is the maximum credited return. Since 7% is below the 8% cap, the cap doesn’t change the result.
• The floor is the minimum credited return. Since 7% is above the 1% floor, the floor doesn’t change the result.

Bottom line: the investor is credited 7%.

🔑 Index crediting methods

How the insurance company measures the index return is another key contract feature. For example, does the contract measure returns from January 1 to December 31 and credit annually? Or does it use the highest or lowest index value during the period? The most common index crediting methods are:

• Annual reset
• Point-to-point
• High water mark
• Low water mark

• 📌 In every method: “Then any participation rate, cap, floor, and/or spread rate is applied.”

Verbatim examples

Annual reset — For example, suppose the contract starts on July 1, 2025 when the index is 4,000. On July 1, 2026 the index is 4,400. The 400-point increase is a 10% gain (400 / 4,000). After that, any participation rate, cap, floor, and/or spread rate is applied.

High water mark — For example, suppose the contract starts on July 1, 2025 when the index is 4,000. On July 1, 2026 the index is 4,400, but the index reached 4,600 in March 2026. Under high water mark, the insurer uses 4,600 (the highest value) instead of 4,400 (the ending value). The 600-point increase is a 15% gain (600 / 4,000). Then any participation rate, cap, floor, and/or spread rate is applied.

Low water mark — For example, suppose the contract starts on July 1, 2025 when the index is 4,000. On July 1, 2026 the index is 4,400, but the index fell to 3,500 in November 2025. Under low water mark, the insurer uses 3,500 (the lowest value) instead of 4,000 (the starting value). The change from 3,500 to 4,400 is 900 points, which is a 25.7% gain (900 / 3,500). Then any participation rate, cap, floor, and/or spread rate is applied.

Sidenote — Surrender charges

Annuities of all kinds are known for surrender charges, which are fees assessed if an investor withdraws funds before a specified period ends. For example, an investor begins contributing to a variable annuity at age 40 with a goal of annuitizing at age 65. They run into financial troubles at age 42 and request a withdrawal of half their contributions. In a scenario like this, insurance companies may impose surrender charges as high as 10%. The investor may also owe taxes and early withdrawal penalties on any gains.

In most circumstances, insurance companies impose surrender periods of at least 6 years, and often 10 years or more.

🔑 Surrender charge / surrender period facts (EXACT)

Key points

Equity indexed annuity (EIA)

• Annuity with both variable and fixed features
• Returns are linked to an equity index (e.g. S&P 500)
• Returns are guaranteed at a minimum level even if the index declines
• Not a security

EIA features

• Participation rate
  • Percent of index returns credited to the investor
• Cap (ceiling)
  • Maximum return granted regardless of index gains
• Floor
  • Minimum return granted regardless of index declines
• Spread rate (margin, asset fee)
  • Fees deducted from index returns

EIA crediting methods

• Annual reset
  • Beginning value vs. end value after 1 year
  • Typically reset at the anniversary of EIA contract signing
• Point-to-point
  • Beginning value vs. end value
  • Points may vary (monthly, annual, every few years)
• High water mark
  • Beginning value vs. highest index value over a specified period
• Low water mark
  • Low index value vs. ending value over a specified period

Surrender charges

• Fees assessed if withdrawing funds prior to surrender period elapsing

Sources

Primary/official references for the material in this chapter. Every link was fetched and returned HTTP 200 on 2026-08-15.