TLSTX vs. AMFEX
TLSTX (TIAA-CREF Life Funds Stock Index Fund) and AMFEX (AAMA Equity Fund) are both Large Cap Blend Equities funds. Over the past 5 years, TLSTX returned 11.63%/yr vs 10.69%/yr for AMFEX. Their 0.95 correlation means they have historically moved very closely together. TLSTX charges 0.09%/yr vs 1.17%/yr for AMFEX.
Performance
TLSTX vs. AMFEX - Performance Comparison
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Returns By Period
In the year-to-date period, TLSTX achieves a 9.68% return, which is significantly lower than AMFEX's 13.57% return.
TLSTX
- 1D
- 1.60%
- 1M
- -0.78%
- 6M
- 8.02%
- YTD
- 9.68%
- 1Y
- 20.86%
- 3Y*
- 18.46%
- 5Y*
- 11.63%
- 10Y*
- —
- ALL TIME*
- 15.50%
AMFEX
- 1D
- 0.80%
- 1M
- 0.71%
- 6M
- 8.82%
- YTD
- 13.57%
- 1Y
- 24.69%
- 3Y*
- 16.86%
- 5Y*
- 10.69%
- 10Y*
- —
- ALL TIME*
- 12.18%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
AMFEX AAMA Equity Fund | $0.00 | $0.00 | $0.00 |
| $0.00 | $0.00 | $0.00 |
TLSTX vs. AMFEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
TLSTX TIAA-CREF Life Funds Stock Index Fund | 9.68% | 17.08% | 23.66% | 25.90% | -19.24% | 25.61% | 20.74% | 15.48% |
AMFEX AAMA Equity Fund | 13.57% | 17.33% | 16.28% | 17.32% | -14.08% | 22.58% | 12.70% | 10.30% |
Correlation
The correlation between TLSTX and AMFEX is 0.87, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.87 |
Correlation (3Y) Balances recent behavior with more history. | 0.91 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.94 |
Correlation (All Time) Calculated using the full available price history since May 13, 2019 | 0.95 |
The correlation between TLSTX and AMFEX has been stable across timeframes, ranging from 0.87 to 0.95 - a consistent structural relationship.
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Return for Risk
TLSTX vs. AMFEX — Risk / Return Rank
TLSTX
AMFEX
TLSTX vs. AMFEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for TIAA-CREF Life Funds Stock Index Fund (TLSTX) and AAMA Equity Fund (AMFEX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| TLSTX | AMFEX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.81 | ||
| Sortino ratioReturn per unit of downside risk | -1.04 | ||
| Omega ratioGain probability vs. loss probability | 1.25 | 1.39 | -0.14 |
| Calmar ratioReturn relative to maximum drawdown | 2.09 | 3.69 | -1.61 |
| Martin ratioReturn relative to average drawdown | 9.05 | 15.37 | -6.32 |
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Drawdowns
TLSTX vs. AMFEX - Drawdown Comparison
The maximum TLSTX drawdown since its inception was -34.91%, which is greater than AMFEX's maximum drawdown of -30.41%. Use the drawdown chart below to compare losses from any high point for TLSTX and AMFEX.
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Drawdown Indicators
| TLSTX | AMFEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -34.91% | -30.41% | -4.50% |
Max Drawdown (1Y)Largest decline over 1 year | -8.86% | -6.07% | -2.79% |
Max Drawdown (3Y)Largest decline over 3 years | -19.30% | -15.23% | -4.07% |
Max Drawdown (5Y)Largest decline over 5 years | -25.12% | -21.21% | -3.91% |
Current DrawdownCurrent decline from peak | -1.78% | -0.42% | -1.36% |
Average DrawdownAverage peak-to-trough decline | -5.41% | -4.24% | -1.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.04% | 1.46% | +0.58% |
Volatility
TLSTX vs. AMFEX - Volatility Comparison
TIAA-CREF Life Funds Stock Index Fund (TLSTX) has a higher volatility of 3.37% compared to AAMA Equity Fund (AMFEX) at 2.37%. This indicates that TLSTX's price experiences larger fluctuations and is considered to be riskier than AMFEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TLSTX | AMFEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.37% | 2.37% | +1.00% |
Volatility (6M)Calculated over the trailing 6-month period | 10.19% | 7.74% | +2.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.05% | 10.10% | +2.95% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.05% | 14.22% | +2.83% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.96% | 16.84% | +3.12% |
TLSTX vs. AMFEX - Expense Ratio Comparison
TLSTX has a 0.09% expense ratio, which is lower than AMFEX's 1.17% expense ratio.
Dividends
TLSTX vs. AMFEX - Dividend Comparison
TLSTX's dividend yield for the trailing twelve months is around 5.00%, less than AMFEX's 10.56% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|---|
AMFEX AAMA Equity Fund | 10.56% | 11.99% | 9.19% | 0.92% | 4.82% | 0.22% | 0.44% | 0.78% | 0.83% |
TLSTX TIAA-CREF Life Funds Stock Index Fund | 5.00% | 5.48% | 2.73% | 2.22% | 3.82% | 1.38% | 1.84% | 2.24% | 0.00% |
Frequently Asked Questions
TLSTX and AMFEX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TLSTX has higher volatility (3.37%) compared to AMFEX (2.37%). In terms of maximum drawdown, TLSTX dropped -34.91% vs AMFEX's -30.41%.
AMFEX currently has the higher Sharpe Ratio (2.22 vs 1.42), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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