TLXIX vs. PTDIX

Last updated Jun 26, 2026

TLXIX (TIAA-CREF Lifecycle Index 2045 Fund) and PTDIX (Principal LifeTime 2040 Fund) are both Target Retirement Date funds. Over the past 10 years, TLXIX returned 12.00%/yr vs 10.73%/yr for PTDIX. With a 0.98 correlation, they move nearly in lockstep. TLXIX charges 0.10%/yr vs 0.01%/yr for PTDIX.

Performance

TLXIX vs. PTDIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in TIAA-CREF Lifecycle Index 2045 Fund (TLXIX) and Principal LifeTime 2040 Fund (PTDIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TLXIX achieves a 9.02% return, which is significantly higher than PTDIX's 5.76% return. Over the past 10 years, TLXIX has outperformed PTDIX with an annualized return of 12.00%, while PTDIX has yielded a comparatively lower 10.73% annualized return.

TLXIX

• 1D: 0.08%
• 1M: -1.01%
• YTD: 9.02%
• 6M: 8.21%
• 1Y: 21.60%
• 3Y*: 17.76%
• 5Y*: 9.30%
• 10Y*: 12.00%

PTDIX

• 1D: 0.23%
• 1M: -0.73%
• YTD: 5.76%
• 6M: 5.10%
• 1Y: 15.13%
• 3Y*: 16.10%
• 5Y*: 7.59%
• 10Y*: 10.73%

*Multi-year figures are annualized to reflect compound growth (CAGR)

TLXIX vs. PTDIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TLXIX TIAA-CREF Lifecycle Index 2045 Fund	9.02%	20.13%	14.63%	20.06%	-17.26%	16.63%	17.02%	25.84%	-6.96%	18.87%
PTDIX Principal LifeTime 2040 Fund	5.76%	15.59%	17.43%	18.33%	-18.13%	15.35%	16.04%	24.91%	-7.95%	20.69%

Correlation

The correlation between TLXIX and PTDIX is 0.98 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.98
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since Oct 1, 2009	0.98

The correlation between TLXIX and PTDIX has been stable across timeframes, ranging from 0.97 to 0.98 - a consistent structural relationship.

Return for Risk

TLXIX vs. PTDIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

TLXIX

TLXIX Risk / Return Rank: 59
TLXIX Sharpe Ratio Rank: 58
TLXIX Sortino Ratio Rank: 55
TLXIX Omega Ratio Rank: 57
TLXIX Calmar Ratio Rank: 59
TLXIX Martin Ratio Rank: 68

PTDIX

PTDIX Risk / Return Rank: 39
PTDIX Sharpe Ratio Rank: 35
PTDIX Sortino Ratio Rank: 34
PTDIX Omega Ratio Rank: 36
PTDIX Calmar Ratio Rank: 39
PTDIX Martin Ratio Rank: 50

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

TLXIX vs. PTDIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for TIAA-CREF Lifecycle Index 2045 Fund (TLXIX) and Principal LifeTime 2040 Fund (PTDIX). 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.

	TLXIX	PTDIX	Difference
Sharpe ratio: Return per unit of total volatility	1.86	1.44	+0.42
Sortino ratio: Return per unit of downside risk	2.57	2.04	+0.54
Omega ratio: Gain probability vs. loss probability	1.34	1.27	+0.08
Calmar ratio: Return relative to maximum drawdown	2.56	2.04	+0.52
Martin ratio: Return relative to average drawdown	11.07	8.83	+2.24

TLXIX vs. PTDIX - Sharpe Ratio Comparison

The current TLXIX Sharpe Ratio is 1.86, which is comparable to the PTDIX Sharpe Ratio of 1.44. The chart below compares the historical Sharpe Ratios of TLXIX and PTDIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

TLXIX vs. PTDIX - Drawdown Comparison

The maximum TLXIX drawdown since its inception was -31.08%, smaller than the maximum PTDIX drawdown of -54.38%. Use the drawdown chart below to compare losses from any high point for TLXIX and PTDIX.

Drawdown Indicators

	TLXIX	PTDIX	Difference
Max Drawdown Largest peak-to-trough decline	-31.08%	-54.38%	+23.30%
Max Drawdown (1Y) Largest decline over 1 year	-8.45%	-7.32%	-1.13%
Max Drawdown (3Y) Largest decline over 3 years	-14.27%	-13.05%	-1.22%
Max Drawdown (5Y) Largest decline over 5 years	-24.97%	-25.43%	+0.46%
Max Drawdown (10Y) Largest decline over 10 years	-31.08%	-30.02%	-1.06%
Current Drawdown Current decline from peak	-2.17%	-1.89%	-0.28%
Average Drawdown Average peak-to-trough decline	-4.02%	-7.48%	+3.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.95%	1.69%	+0.26%

Volatility

TLXIX vs. PTDIX - Volatility Comparison

TIAA-CREF Lifecycle Index 2045 Fund (TLXIX) has a higher volatility of 4.92% compared to Principal LifeTime 2040 Fund (PTDIX) at 4.21%. This indicates that TLXIX's price experiences larger fluctuations and is considered to be riskier than PTDIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TLXIX	PTDIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.92%	4.21%	+0.71%
Volatility (6M) Calculated over the trailing 6-month period	9.69%	8.63%	+1.06%
Volatility (1Y) Calculated over the trailing 1-year period	11.70%	10.44%	+1.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.08%	13.59%	+0.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.12%	13.80%	+1.32%

TLXIX vs. PTDIX - Expense Ratio Comparison

TLXIX has a 0.10% expense ratio, which is higher than PTDIX's 0.01% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

TLXIX vs. PTDIX - Dividend Comparison

TLXIX's dividend yield for the trailing twelve months is around 2.97%, less than PTDIX's 9.27% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PTDIX Principal LifeTime 2040 Fund	9.27%	9.80%	12.28%	4.40%	8.61%	8.92%	6.01%	7.26%	9.28%	6.07%	4.86%	6.73%
TLXIX TIAA-CREF Lifecycle Index 2045 Fund	2.97%	3.24%	2.33%	2.07%	2.49%	2.51%	1.77%	2.25%	2.69%	0.16%	2.59%	2.47%

Frequently Asked Questions

Can I hold both TLXIX and PTDIX in my portfolio?

With a correlation of 0.98, TLXIX and PTDIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, TLXIX or PTDIX?

TLXIX has higher volatility (4.92%) compared to PTDIX (4.21%). In terms of maximum drawdown, TLXIX dropped -31.08% vs PTDIX's -54.38%.

Which has better risk-adjusted returns?

TLXIX currently has the higher Sharpe Ratio (1.86 vs 1.44), 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.