LIRKX vs. STLFX

Last updated Jun 4, 2026

LIRKX (BlackRock LifePath Index Retirement Fund) and STLFX (BlackRock LifePath Dynamic 2050 Fund) are both Target Retirement Date funds from BlackRock. Over the past 10 years, LIRKX returned 6.01%/yr vs 11.19%/yr for STLFX. Their correlation of 0.87 suggests significant overlap in exposure. LIRKX charges 0.09%/yr vs 0.49%/yr for STLFX.

Performance

LIRKX vs. STLFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock LifePath Index Retirement Fund (LIRKX) and BlackRock LifePath Dynamic 2050 Fund (STLFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LIRKX achieves a 5.84% return, which is significantly lower than STLFX's 13.13% return. Over the past 10 years, LIRKX has underperformed STLFX with an annualized return of 6.01%, while STLFX has yielded a comparatively higher 11.19% annualized return.

LIRKX

• 1D: 0.19%
• 1M: 2.20%
• YTD: 5.84%
• 6M: 6.09%
• 1Y: 14.71%
• 3Y*: 10.18%
• 5Y*: 4.26%
• 10Y*: 6.01%

STLFX

• 1D: 0.38%
• 1M: 5.27%
• YTD: 13.13%
• 6M: 14.07%
• 1Y: 28.27%
• 3Y*: 16.89%
• 5Y*: 8.54%
• 10Y*: 11.19%

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

LIRKX vs. STLFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LIRKX BlackRock LifePath Index Retirement Fund	5.84%	12.48%	6.08%	11.48%	-15.21%	6.75%	11.46%	15.90%	-3.50%	10.75%
STLFX BlackRock LifePath Dynamic 2050 Fund	13.13%	20.03%	5.73%	22.31%	-18.73%	18.12%	14.82%	26.48%	-8.22%	21.73%

Correlation

The correlation between LIRKX and STLFX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.87
Correlation (All Time) Calculated using the full available price history since Jun 1, 2011	0.87

The correlation between LIRKX and STLFX has been stable across timeframes, ranging from 0.86 to 0.91 - a consistent structural relationship.

Return for Risk

LIRKX vs. STLFX — Risk / Return Rank

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

LIRKX

LIRKX Risk / Return Rank: 81
LIRKX Sharpe Ratio Rank: 82
LIRKX Sortino Ratio Rank: 82
LIRKX Omega Ratio Rank: 81
LIRKX Calmar Ratio Rank: 77
LIRKX Martin Ratio Rank: 84

STLFX

STLFX Risk / Return Rank: 56
STLFX Sharpe Ratio Rank: 52
STLFX Sortino Ratio Rank: 49
STLFX Omega Ratio Rank: 48
STLFX Calmar Ratio Rank: 62
STLFX Martin Ratio Rank: 68

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.

LIRKX vs. STLFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock LifePath Index Retirement Fund (LIRKX) and BlackRock LifePath Dynamic 2050 Fund (STLFX). 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.

	LIRKX	STLFX	Difference
Sharpe ratio: Return per unit of total volatility	2.68	2.13	+0.55
Sortino ratio: Return per unit of downside risk	3.90	2.96	+0.94
Omega ratio: Gain probability vs. loss probability	1.53	1.38	+0.15
Calmar ratio: Return relative to maximum drawdown	3.51	3.02	+0.50
Martin ratio: Return relative to average drawdown	15.84	13.18	+2.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LIRKX vs. STLFX - Sharpe Ratio Comparison

The current LIRKX Sharpe Ratio is 2.68, which is comparable to the STLFX Sharpe Ratio of 2.13. The chart below compares the historical Sharpe Ratios of LIRKX and STLFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	LIRKX	STLFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.68	2.13	+0.55
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.55	0.51	+0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.80	0.68	+0.12
Sharpe Ratio (All Time) Calculated using the full available price history	0.80	0.42	+0.38

Drawdowns

LIRKX vs. STLFX - Drawdown Comparison

The maximum LIRKX drawdown since its inception was -20.46%, smaller than the maximum STLFX drawdown of -50.35%. Use the drawdown chart below to compare losses from any high point for LIRKX and STLFX.

Drawdown Indicators

	LIRKX	STLFX	Difference
Max Drawdown Largest peak-to-trough decline	-20.46%	-50.35%	+29.89%
Max Drawdown (1Y) Largest decline over 1 year	-4.23%	-9.45%	+5.22%
Max Drawdown (3Y) Largest decline over 3 years	-7.55%	-23.35%	+15.80%
Max Drawdown (5Y) Largest decline over 5 years	-20.46%	-27.07%	+6.61%
Max Drawdown (10Y) Largest decline over 10 years	-20.46%	-34.48%	+14.02%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.83%	-6.78%	+3.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.94%	2.16%	-1.22%

Volatility

LIRKX vs. STLFX - Volatility Comparison

The current volatility for BlackRock LifePath Index Retirement Fund (LIRKX) is 1.98%, while BlackRock LifePath Dynamic 2050 Fund (STLFX) has a volatility of 3.88%. This indicates that LIRKX experiences smaller price fluctuations and is considered to be less risky than STLFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LIRKX	STLFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.98%	3.88%	-1.90%
Volatility (6M) Calculated over the trailing 6-month period	4.52%	10.69%	-6.17%
Volatility (1Y) Calculated over the trailing 1-year period	5.54%	13.41%	-7.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.82%	16.86%	-9.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.51%	16.42%	-8.91%

LIRKX vs. STLFX - Expense Ratio Comparison

LIRKX has a 0.09% expense ratio, which is lower than STLFX's 0.49% expense ratio.

Dividends

LIRKX vs. STLFX - Dividend Comparison

LIRKX's dividend yield for the trailing twelve months is around 3.67%, less than STLFX's 5.48% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LIRKX BlackRock LifePath Index Retirement Fund	3.67%	3.89%	2.06%	2.67%	2.75%	2.74%	1.98%	2.48%	2.50%	2.28%	2.53%	2.98%
STLFX BlackRock LifePath Dynamic 2050 Fund	5.48%	6.20%	1.86%	2.91%	2.51%	16.88%	2.27%	6.09%	15.73%	5.87%	2.00%	9.21%

Frequently Asked Questions

Can I hold both LIRKX and STLFX in my portfolio?

With a correlation of 0.91, LIRKX and STLFX 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, LIRKX or STLFX?

STLFX has higher volatility (3.88%) compared to LIRKX (1.98%). In terms of maximum drawdown, LIRKX dropped -20.46% vs STLFX's -50.35%.

Which has better risk-adjusted returns?

LIRKX currently has the higher Sharpe Ratio (2.68 vs 2.13), 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.