HASCX vs. BDSKX

Last updated Jun 4, 2026

HASCX (Harbor Small Cap Value Fund) and BDSKX (BlackRock Advantage Small Cap Core Fund Class K) are both Small Cap Blend Equities funds. Over the past 5 years, HASCX returned 8.73%/yr vs 7.62%/yr for BDSKX. Their correlation of 0.93 suggests significant overlap in exposure. HASCX charges 0.87%/yr vs 0.45%/yr for BDSKX.

Performance

HASCX vs. BDSKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor Small Cap Value Fund (HASCX) and BlackRock Advantage Small Cap Core Fund Class K (BDSKX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, HASCX achieves a 26.15% return, which is significantly higher than BDSKX's 20.55% return.

HASCX

• 1D: 1.68%
• 1M: 1.58%
• YTD: 26.15%
• 6M: 23.98%
• 1Y: 42.29%
• 3Y*: 16.23%
• 5Y*: 8.73%
• 10Y*: 11.62%

BDSKX

• 1D: 1.17%
• 1M: 4.42%
• YTD: 20.55%
• 6M: 19.44%
• 1Y: 43.45%
• 3Y*: 20.36%
• 5Y*: 7.62%
• 10Y*: —

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

HASCX vs. BDSKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
HASCX Harbor Small Cap Value Fund	26.15%	3.78%	10.93%	15.18%	-9.59%	14.55%	13.15%	28.97%	-16.16%	21.08%
BDSKX BlackRock Advantage Small Cap Core Fund Class K	20.55%	13.76%	11.96%	16.49%	-19.20%	14.87%	19.60%	33.45%	-8.80%	9.97%

Correlation

The correlation between HASCX and BDSKX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.93

The correlation between HASCX and BDSKX has been stable across timeframes, ranging from 0.88 to 0.93 - a consistent structural relationship.

Return for Risk

HASCX vs. BDSKX — Risk / Return Rank

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

HASCX

HASCX Risk / Return Rank: 69
HASCX Sharpe Ratio Rank: 63
HASCX Sortino Ratio Rank: 60
HASCX Omega Ratio Rank: 51
HASCX Calmar Ratio Rank: 90
HASCX Martin Ratio Rank: 83

BDSKX

BDSKX Risk / Return Rank: 71
BDSKX Sharpe Ratio Rank: 67
BDSKX Sortino Ratio Rank: 60
BDSKX Omega Ratio Rank: 51
BDSKX Calmar Ratio Rank: 90
BDSKX Martin Ratio Rank: 86

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.

HASCX vs. BDSKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor Small Cap Value Fund (HASCX) and BlackRock Advantage Small Cap Core Fund Class K (BDSKX). 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.

	HASCX	BDSKX	Difference
Sharpe ratio Return per unit of total volatility	2.32	2.40	-0.07
Sortino ratio Return per unit of downside risk	3.27	3.24	+0.03
Omega ratio Gain probability vs. loss probability	1.40	1.39	0.00
Calmar ratio Return relative to maximum drawdown	4.55	4.64	-0.09
Martin ratio Return relative to average drawdown	15.62	16.59	-0.97
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

HASCX vs. BDSKX - Sharpe Ratio Comparison

The current HASCX Sharpe Ratio is 2.32, which is comparable to the BDSKX Sharpe Ratio of 2.40. The chart below compares the historical Sharpe Ratios of HASCX and BDSKX, 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

	HASCX	BDSKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.32	2.40	-0.07
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.42	0.34	+0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.51	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.46	0.46	0.00

Drawdowns

HASCX vs. BDSKX - Drawdown Comparison

The maximum HASCX drawdown since its inception was -58.90%, which is greater than BDSKX's maximum drawdown of -43.30%. Use the drawdown chart below to compare losses from any high point for HASCX and BDSKX.

Drawdown Indicators

	HASCX	BDSKX	Difference
Max Drawdown Largest peak-to-trough decline	-58.90%	-43.30%	-15.60%
Max Drawdown (1Y) Largest decline over 1 year	-9.89%	-9.88%	-0.01%
Max Drawdown (3Y) Largest decline over 3 years	-28.34%	-26.55%	-1.79%
Max Drawdown (5Y) Largest decline over 5 years	-28.34%	-31.65%	+3.31%
Max Drawdown (10Y) Largest decline over 10 years	-42.15%	—	—
Current Drawdown Current decline from peak	-1.37%	0.00%	-1.37%
Average Drawdown Average peak-to-trough decline	-8.14%	-9.50%	+1.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.87%	2.76%	+0.11%

Volatility

HASCX vs. BDSKX - Volatility Comparison

Harbor Small Cap Value Fund (HASCX) has a higher volatility of 6.16% compared to BlackRock Advantage Small Cap Core Fund Class K (BDSKX) at 5.39%. This indicates that HASCX's price experiences larger fluctuations and is considered to be riskier than BDSKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HASCX	BDSKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.16%	5.39%	+0.77%
Volatility (6M) Calculated over the trailing 6-month period	14.54%	13.62%	+0.92%
Volatility (1Y) Calculated over the trailing 1-year period	19.37%	19.11%	+0.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.74%	22.55%	-1.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.91%	23.79%	-0.88%

HASCX vs. BDSKX - Expense Ratio Comparison

HASCX has a 0.87% expense ratio, which is higher than BDSKX's 0.45% expense ratio.

Dividends

HASCX vs. BDSKX - Dividend Comparison

HASCX's dividend yield for the trailing twelve months is around 2.71%, less than BDSKX's 3.98% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BDSKX BlackRock Advantage Small Cap Core Fund Class K	3.98%	4.80%	0.81%	1.01%	3.59%	12.08%	2.59%	1.72%	5.70%	2.33%	0.00%	0.00%
HASCX Harbor Small Cap Value Fund	2.71%	3.41%	0.62%	6.99%	7.25%	5.64%	0.43%	1.41%	11.18%	1.98%	0.36%	3.98%

Frequently Asked Questions

Can I hold both HASCX and BDSKX in my portfolio?

HASCX and BDSKX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, HASCX or BDSKX?

HASCX has higher volatility (6.16%) compared to BDSKX (5.39%). In terms of maximum drawdown, HASCX dropped -58.90% vs BDSKX's -43.30%.

Which has better risk-adjusted returns?

BDSKX currently has the higher Sharpe Ratio (2.40 vs 2.32), 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.