UBVLX vs. BDSKX

Last updated Jun 4, 2026

UBVLX (Undiscovered Managers Behavioral Value Fund) and BDSKX (BlackRock Advantage Small Cap Core Fund Class K) are both mutual funds - UBVLX is a Small Cap Value Equities fund managed by BlackRock, while BDSKX is a Small Cap Blend Equities fund tracking the Russell 2000 Index. Over the past 5 years, UBVLX returned 7.29%/yr vs 7.62%/yr for BDSKX. Their correlation of 0.86 suggests significant overlap in exposure. UBVLX charges 0.90%/yr vs 0.45%/yr for BDSKX.

Performance

UBVLX vs. BDSKX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Undiscovered Managers Behavioral Value Fund (UBVLX) 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, UBVLX achieves a 7.51% return, which is significantly lower than BDSKX's 20.55% return.

UBVLX

• 1D: 0.54%
• 1M: 2.17%
• YTD: 7.51%
• 6M: 8.50%
• 1Y: 14.80%
• 3Y*: 12.83%
• 5Y*: 7.29%
• 10Y*: 10.03%

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)

UBVLX vs. BDSKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
UBVLX Undiscovered Managers Behavioral Value Fund	7.51%	1.79%	13.11%	14.69%	-1.16%	34.25%	3.52%	23.27%	-15.23%	12.10%
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 UBVLX and BDSKX is 0.75, 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	0.75
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.86

The correlation between UBVLX and BDSKX shifts across timeframes, from 0.75 (1 year) to 0.86 (all time), reflecting how their relationship changes across market environments.

Return for Risk

UBVLX vs. BDSKX — Risk / Return Rank

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

UBVLX

UBVLX Risk / Return Rank: 15
UBVLX Sharpe Ratio Rank: 13
UBVLX Sortino Ratio Rank: 15
UBVLX Omega Ratio Rank: 13
UBVLX Calmar Ratio Rank: 19
UBVLX Martin Ratio Rank: 16

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.

UBVLX vs. BDSKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Undiscovered Managers Behavioral Value Fund (UBVLX) 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.

	UBVLX	BDSKX	Difference
Sharpe ratio: Return per unit of total volatility	0.99	2.40	-1.41
Sortino ratio: Return per unit of downside risk	1.59	3.24	-1.65
Omega ratio: Gain probability vs. loss probability	1.18	1.39	-0.21
Calmar ratio: Return relative to maximum drawdown	1.60	4.64	-3.04
Martin ratio: Return relative to average drawdown	4.45	16.59	-12.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

UBVLX vs. BDSKX - Sharpe Ratio Comparison

The current UBVLX Sharpe Ratio is 0.99, which is lower than the BDSKX Sharpe Ratio of 2.40. The chart below compares the historical Sharpe Ratios of UBVLX 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

	UBVLX	BDSKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.99	2.40	-1.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.36	0.34	+0.02
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.41	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.46	+0.01

Drawdowns

UBVLX vs. BDSKX - Drawdown Comparison

The maximum UBVLX drawdown since its inception was -67.24%, which is greater than BDSKX's maximum drawdown of -43.30%. Use the drawdown chart below to compare losses from any high point for UBVLX and BDSKX.

Drawdown Indicators

	UBVLX	BDSKX	Difference
Max Drawdown Largest peak-to-trough decline	-67.24%	-43.30%	-23.94%
Max Drawdown (1Y) Largest decline over 1 year	-10.32%	-9.88%	-0.44%
Max Drawdown (3Y) Largest decline over 3 years	-21.46%	-26.55%	+5.09%
Max Drawdown (5Y) Largest decline over 5 years	-21.46%	-31.65%	+10.19%
Max Drawdown (10Y) Largest decline over 10 years	-52.08%	—	—
Current Drawdown Current decline from peak	-2.08%	0.00%	-2.08%
Average Drawdown Average peak-to-trough decline	-9.27%	-9.50%	+0.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.71%	2.76%	+0.95%

Volatility

UBVLX vs. BDSKX - Volatility Comparison

The current volatility for Undiscovered Managers Behavioral Value Fund (UBVLX) is 4.31%, while BlackRock Advantage Small Cap Core Fund Class K (BDSKX) has a volatility of 5.39%. This indicates that UBVLX experiences smaller price fluctuations and is considered to be less risky than BDSKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	UBVLX	BDSKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.31%	5.39%	-1.08%
Volatility (6M) Calculated over the trailing 6-month period	10.77%	13.62%	-2.85%
Volatility (1Y) Calculated over the trailing 1-year period	16.69%	19.11%	-2.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.33%	22.55%	-2.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.61%	23.79%	+0.82%

UBVLX vs. BDSKX - Expense Ratio Comparison

UBVLX has a 0.90% expense ratio, which is higher than BDSKX's 0.45% expense ratio.

Dividends

UBVLX vs. BDSKX - Dividend Comparison

UBVLX's dividend yield for the trailing twelve months is around 8.75%, more 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%
UBVLX Undiscovered Managers Behavioral Value Fund	8.75%	9.41%	7.39%	8.35%	8.96%	3.44%	0.99%	4.98%	11.62%	4.67%	3.24%	3.80%

Frequently Asked Questions

Can I hold both UBVLX and BDSKX in my portfolio?

UBVLX and BDSKX have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, UBVLX or BDSKX?

BDSKX has higher volatility (5.39%) compared to UBVLX (4.31%). In terms of maximum drawdown, UBVLX dropped -67.24% vs BDSKX's -43.30%.

Which has better risk-adjusted returns?

BDSKX currently has the higher Sharpe Ratio (2.40 vs 0.99), 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.