FHLKX vs. CSTAX

Last updated Apr 1, 2026

Compare and contrast key facts about Fidelity Health Savings Fund Class K (FHLKX) and American Funds College 2027 Fund (CSTAX).

FHLKX is managed by Fidelity. It was launched on Mar 2, 2020. CSTAX is managed by American Funds. It was launched on Sep 13, 2012.

Performance

FHLKX vs. CSTAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Health Savings Fund Class K (FHLKX) and American Funds College 2027 Fund (CSTAX). The values are adjusted to include any dividend payments, if applicable.

FHLKX vs. CSTAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
FHLKX Fidelity Health Savings Fund Class K	-0.73%	12.17%	7.06%	9.82%	-14.79%	5.50%	10.70%
CSTAX American Funds College 2027 Fund	-0.65%	9.00%	5.57%	6.57%	-9.87%	6.52%	8.16%

Returns By Period

In the year-to-date period, FHLKX achieves a -0.73% return, which is significantly lower than CSTAX's -0.65% return.

FHLKX

• 1D: 0.09%
• 1M: -4.25%
• YTD: -0.73%
• 6M: 1.25%
• 1Y: 10.18%
• 3Y*: 7.91%
• 5Y*: 3.52%
• 10Y*: —

CSTAX

• 1D: 0.25%
• 1M: -2.48%
• YTD: -0.65%
• 6M: 0.73%
• 1Y: 5.79%
• 3Y*: 5.94%
• 5Y*: 2.92%
• 10Y*: 4.97%

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

FHLKX vs. CSTAX - Expense Ratio Comparison

FHLKX has a 0.37% expense ratio, which is lower than CSTAX's 0.41% expense ratio.

CSTAX

American Funds College 2027 Fund

FHLKX

Fidelity Health Savings Fund Class K

Return for Risk

FHLKX vs. CSTAX — Risk / Return Rank

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

FHLKX

FHLKX Risk / Return Rank: 82
FHLKX Sharpe Ratio Rank: 82
FHLKX Sortino Ratio Rank: 82
FHLKX Omega Ratio Rank: 81
FHLKX Calmar Ratio Rank: 81
FHLKX Martin Ratio Rank: 85

CSTAX

CSTAX Risk / Return Rank: 87
CSTAX Sharpe Ratio Rank: 87
CSTAX Sortino Ratio Rank: 89
CSTAX Omega Ratio Rank: 85
CSTAX Calmar Ratio Rank: 87
CSTAX Martin Ratio Rank: 87

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.

FHLKX vs. CSTAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Health Savings Fund Class K (FHLKX) and American Funds College 2027 Fund (CSTAX). 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.

	FHLKX	CSTAX	Difference
Sharpe ratio Return per unit of total volatility	1.52	1.73	-0.21
Sortino ratio Return per unit of downside risk	2.12	2.47	-0.36
Omega ratio Gain probability vs. loss probability	1.32	1.35	-0.04
Calmar ratio Return relative to maximum drawdown	1.96	2.23	-0.27
Martin ratio Return relative to average drawdown	8.66	9.16	-0.50
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FHLKX vs. CSTAX - Sharpe Ratio Comparison

The current FHLKX Sharpe Ratio is 1.52, which is comparable to the CSTAX Sharpe Ratio of 1.73. The chart below compares the historical Sharpe Ratios of FHLKX and CSTAX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FHLKX	CSTAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.52	1.73	-0.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.53	0.57	-0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.86	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	0.86	-0.24

Correlation

The correlation between FHLKX and CSTAX is 0.86, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

FHLKX vs. CSTAX - Dividend Comparison

FHLKX's dividend yield for the trailing twelve months is around 3.09%, less than CSTAX's 5.30% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FHLKX Fidelity Health Savings Fund Class K	3.09%	3.05%	3.01%	2.88%	3.85%	2.84%	1.73%	0.00%	0.00%	0.00%	0.00%	0.00%
CSTAX American Funds College 2027 Fund	5.30%	5.26%	3.78%	3.17%	3.40%	7.52%	5.72%	4.00%	4.78%	3.90%	4.34%	4.49%

Drawdowns

FHLKX vs. CSTAX - Drawdown Comparison

The maximum FHLKX drawdown since its inception was -19.09%, which is greater than CSTAX's maximum drawdown of -14.52%. Use the drawdown chart below to compare losses from any high point for FHLKX and CSTAX.

Drawdown Indicators

	FHLKX	CSTAX	Difference
Max Drawdown Largest peak-to-trough decline	-19.09%	-14.52%	-4.57%
Max Drawdown (1Y) Largest decline over 1 year	-4.97%	-2.72%	-2.25%
Max Drawdown (5Y) Largest decline over 5 years	-19.09%	-14.52%	-4.57%
Max Drawdown (10Y) Largest decline over 10 years	—	-14.52%	—
Current Drawdown Current decline from peak	-4.34%	-2.48%	-1.86%
Average Drawdown Average peak-to-trough decline	-4.94%	-2.37%	-2.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.13%	0.66%	+0.47%

Volatility

FHLKX vs. CSTAX - Volatility Comparison

Fidelity Health Savings Fund Class K (FHLKX) has a higher volatility of 2.76% compared to American Funds College 2027 Fund (CSTAX) at 1.32%. This indicates that FHLKX's price experiences larger fluctuations and is considered to be riskier than CSTAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FHLKX	CSTAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.76%	1.32%	+1.44%
Volatility (6M) Calculated over the trailing 6-month period	4.38%	2.05%	+2.33%
Volatility (1Y) Calculated over the trailing 1-year period	6.76%	3.47%	+3.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.65%	5.16%	+1.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.26%	5.82%	+1.44%