HASGX vs. RFDTX

Last updated Jun 4, 2026

HASGX (Harbor Small Cap Growth Fund) and RFDTX (American Funds 2025 Target Date Retirement Income R6) are both mutual funds - HASGX is a Small Cap Growth Equities fund managed by Harbor, while RFDTX is a Target Retirement Date fund tracking the S&P Target Date 2025 Index. Over the past 10 years, HASGX returned 12.94%/yr vs 8.26%/yr for RFDTX. Their correlation of 0.82 suggests significant overlap in exposure. HASGX charges 0.87%/yr vs 0.31%/yr for RFDTX.

Performance

HASGX vs. RFDTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor Small Cap Growth Fund (HASGX) and American Funds 2025 Target Date Retirement Income R6 (RFDTX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, HASGX achieves a 18.25% return, which is significantly higher than RFDTX's 5.32% return. Over the past 10 years, HASGX has outperformed RFDTX with an annualized return of 12.94%, while RFDTX has yielded a comparatively lower 8.26% annualized return.

HASGX

• 1D: 0.89%
• 1M: 3.06%
• YTD: 18.25%
• 6M: 17.11%
• 1Y: 34.77%
• 3Y*: 16.47%
• 5Y*: 7.02%
• 10Y*: 12.94%

RFDTX

• 1D: 0.24%
• 1M: 2.10%
• YTD: 5.32%
• 6M: 5.73%
• 1Y: 14.60%
• 3Y*: 12.21%
• 5Y*: 6.23%
• 10Y*: 8.26%

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

HASGX vs. RFDTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
HASGX Harbor Small Cap Growth Fund	18.25%	11.44%	9.34%	22.20%	-25.60%	9.40%	38.54%	42.39%	-11.37%	24.71%
RFDTX American Funds 2025 Target Date Retirement Income R6	5.32%	14.54%	9.35%	11.95%	-12.73%	11.49%	13.68%	17.83%	-3.46%	15.33%

Correlation

The correlation between HASGX and RFDTX is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.73
Correlation (3Y) Calculated over the trailing 3-year period	0.76
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Jan 5, 2010	0.82

The correlation between HASGX and RFDTX has been stable across timeframes, ranging from 0.73 to 0.82 - a consistent structural relationship.

Return for Risk

HASGX vs. RFDTX — Risk / Return Rank

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

HASGX

HASGX Risk / Return Rank: 45
HASGX Sharpe Ratio Rank: 40
HASGX Sortino Ratio Rank: 38
HASGX Omega Ratio Rank: 35
HASGX Calmar Ratio Rank: 56
HASGX Martin Ratio Rank: 58

RFDTX

RFDTX Risk / Return Rank: 67
RFDTX Sharpe Ratio Rank: 72
RFDTX Sortino Ratio Rank: 73
RFDTX Omega Ratio Rank: 74
RFDTX Calmar Ratio Rank: 53
RFDTX Martin Ratio Rank: 64

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.

HASGX vs. RFDTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor Small Cap Growth Fund (HASGX) and American Funds 2025 Target Date Retirement Income R6 (RFDTX). 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.

	HASGX	RFDTX	Difference
Sharpe ratio: Return per unit of total volatility	1.84	2.48	-0.64
Sortino ratio: Return per unit of downside risk	2.56	3.56	-1.00
Omega ratio: Gain probability vs. loss probability	1.31	1.49	-0.17
Calmar ratio: Return relative to maximum drawdown	2.86	2.79	+0.07
Martin ratio: Return relative to average drawdown	11.58	12.54	-0.96
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

HASGX vs. RFDTX - Sharpe Ratio Comparison

The current HASGX Sharpe Ratio is 1.84, which is comparable to the RFDTX Sharpe Ratio of 2.48. The chart below compares the historical Sharpe Ratios of HASGX and RFDTX, 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

	HASGX	RFDTX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.84	2.48	-0.64
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.30	0.76	-0.46
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.56	0.93	-0.37
Sharpe Ratio (All Time) Calculated using the full available price history	0.42	0.84	-0.42

Drawdowns

HASGX vs. RFDTX - Drawdown Comparison

The maximum HASGX drawdown since its inception was -54.33%, which is greater than RFDTX's maximum drawdown of -19.16%. Use the drawdown chart below to compare losses from any high point for HASGX and RFDTX.

Drawdown Indicators

	HASGX	RFDTX	Difference
Max Drawdown Largest peak-to-trough decline	-54.33%	-19.16%	-35.17%
Max Drawdown (1Y) Largest decline over 1 year	-12.93%	-5.32%	-7.61%
Max Drawdown (3Y) Largest decline over 3 years	-28.49%	-6.73%	-21.76%
Max Drawdown (5Y) Largest decline over 5 years	-34.17%	-18.80%	-15.37%
Max Drawdown (10Y) Largest decline over 10 years	-38.53%	-19.16%	-19.37%
Current Drawdown Current decline from peak	-0.60%	0.00%	-0.60%
Average Drawdown Average peak-to-trough decline	-10.17%	-2.87%	-7.30%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.19%	1.18%	+2.01%

Volatility

HASGX vs. RFDTX - Volatility Comparison

Harbor Small Cap Growth Fund (HASGX) has a higher volatility of 6.19% compared to American Funds 2025 Target Date Retirement Income R6 (RFDTX) at 1.97%. This indicates that HASGX's price experiences larger fluctuations and is considered to be riskier than RFDTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HASGX	RFDTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.19%	1.97%	+4.22%
Volatility (6M) Calculated over the trailing 6-month period	15.85%	4.87%	+10.98%
Volatility (1Y) Calculated over the trailing 1-year period	20.13%	6.00%	+14.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.32%	8.20%	+15.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.16%	8.93%	+14.23%

HASGX vs. RFDTX - Expense Ratio Comparison

HASGX has a 0.87% expense ratio, which is higher than RFDTX's 0.31% expense ratio.

Dividends

HASGX vs. RFDTX - Dividend Comparison

HASGX's dividend yield for the trailing twelve months is around 0.95%, less than RFDTX's 7.28% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
HASGX Harbor Small Cap Growth Fund	0.95%	1.13%	3.53%	0.03%	4.80%	27.66%	7.21%	3.44%	27.29%	10.10%	0.47%	13.13%
RFDTX American Funds 2025 Target Date Retirement Income R6	7.28%	7.67%	5.50%	3.37%	4.30%	6.54%	3.87%	4.00%	4.40%	2.67%	3.44%	6.14%

Frequently Asked Questions

Can I hold both HASGX and RFDTX in my portfolio?

HASGX and RFDTX have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, HASGX or RFDTX?

HASGX has higher volatility (6.19%) compared to RFDTX (1.97%). In terms of maximum drawdown, HASGX dropped -54.33% vs RFDTX's -19.16%.

Which has better risk-adjusted returns?

RFDTX currently has the higher Sharpe Ratio (2.48 vs 1.84), 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.