BDSKX vs. UBVLX

Last updated Aug 4, 2026

BDSKX (BlackRock Advantage Small Cap Core Fund Class K) and UBVLX (Undiscovered Managers Behavioral Value Fund) are both mutual funds - BDSKX is a Small Cap Blend Equities fund tracking the Russell 2000 Index, while UBVLX is a Small Cap Value Equities fund managed by BlackRock. Over the past 5 years, BDSKX returned 7.90%/yr vs 9.88%/yr for UBVLX. Their correlation of 0.85 means they have usually moved in the same direction. BDSKX charges 0.45%/yr vs 0.90%/yr for UBVLX.

Performance

BDSKX vs. UBVLX - Performance Comparison

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

Returns By Period

In the year-to-date period, BDSKX achieves a 20.02% return, which is significantly higher than UBVLX's 14.19% return.

BDSKX

• 1D: -0.43%
• 1M: -1.78%
• 6M: 13.44%
• YTD: 20.02%
• 1Y: 39.99%
• 3Y*: 16.87%
• 5Y*: 7.90%
• 10Y*: —
• ALL TIME*: 10.70%

UBVLX

• 1D: -0.61%
• 1M: -0.19%
• 6M: 8.55%
• YTD: 14.19%
• 1Y: 20.01%
• 3Y*: 11.35%
• 5Y*: 9.88%
• 10Y*: 10.76%
• ALL TIME*: 11.71%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BDSKX BlackRock Advantage Small Cap Core Fund Class K	$0.00	$0.00	$0.00
UBVLX Undiscovered Managers Behavioral Value Fund	$0.00	$0.00	$0.00

BDSKX vs. UBVLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BDSKX BlackRock Advantage Small Cap Core Fund Class K	20.02%	13.76%	11.96%	16.49%	-19.20%	14.87%	19.60%	33.45%	-8.80%	9.97%
UBVLX Undiscovered Managers Behavioral Value Fund	14.19%	1.79%	13.11%	14.69%	-1.16%	34.25%	3.52%	23.27%	-15.23%	13.43%

Correlation

The correlation between BDSKX and UBVLX is 0.63, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.63
Correlation (3Y) Balances recent behavior with more history.	0.80
Correlation (5Y) Shows whether the relationship held over a longer period.	0.84
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017	0.85

Over the past year, the correlation between BDSKX and UBVLX has dropped to 0.63 - well below their long-term average of 0.85, suggesting their price drivers have been diverging.

Return for Risk

BDSKX vs. UBVLX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

BDSKX

BDSKX Risk / Return Rank: 82
BDSKX Sharpe Ratio Rank: 79
BDSKX Sortino Ratio Rank: 76
BDSKX Omega Ratio Rank: 70
BDSKX Calmar Ratio Rank: 92
BDSKX Martin Ratio Rank: 91

UBVLX

UBVLX Risk / Return Rank: 32
UBVLX Sharpe Ratio Rank: 30
UBVLX Sortino Ratio Rank: 34
UBVLX Omega Ratio Rank: 29
UBVLX Calmar Ratio Rank: 38
UBVLX Martin Ratio Rank: 31

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BDSKX vs. UBVLX - Risk-Adjusted Trends Comparison

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

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	BDSKX	UBVLX	Difference
Sharpe ratio: Return per unit of total volatility	1.92	1.07	+0.85
Sortino ratio: Return per unit of downside risk	2.69	1.71	+0.98
Omega ratio: Gain probability vs. loss probability	1.32	1.20	+0.13
Calmar ratio: Return relative to maximum drawdown	3.79	1.71	+2.07
Martin ratio: Return relative to average drawdown	13.53	4.89	+8.64

BDSKX vs. UBVLX - Sharpe Ratio Comparison

The current BDSKX Sharpe Ratio is 1.92, which is higher than the UBVLX Sharpe Ratio of 1.07. The chart below compares the historical Sharpe Ratios of BDSKX and UBVLX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BDSKX vs. UBVLX - Drawdown Comparison

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

Drawdown Indicators

	BDSKX	UBVLX	Difference
Max Drawdown Largest peak-to-trough decline	-43.30%	-67.24%	+23.94%
Max Drawdown (1Y) Largest decline over 1 year	-9.88%	-10.32%	+0.44%
Max Drawdown (3Y) Largest decline over 3 years	-26.55%	-21.46%	-5.09%
Max Drawdown (5Y) Largest decline over 5 years	-31.65%	-21.46%	-10.19%
Max Drawdown (10Y) Largest decline over 10 years	—	-52.08%	—
Current Drawdown Current decline from peak	-2.97%	-3.03%	+0.06%
Average Drawdown Average peak-to-trough decline	-9.36%	-9.22%	-0.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.76%	3.61%	-0.85%

Volatility

BDSKX vs. UBVLX - Volatility Comparison

The current volatility for BlackRock Advantage Small Cap Core Fund Class K (BDSKX) is 3.79%, while Undiscovered Managers Behavioral Value Fund (UBVLX) has a volatility of 5.24%. This indicates that BDSKX experiences smaller price fluctuations and is considered to be less risky than UBVLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BDSKX	UBVLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.79%	5.24%	-1.45%
Volatility (6M) Calculated over the trailing 6-month period	14.20%	11.19%	+3.01%
Volatility (1Y) Calculated over the trailing 1-year period	19.50%	16.58%	+2.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.53%	20.11%	+2.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.70%	24.57%	-0.87%

BDSKX vs. UBVLX - Expense Ratio Comparison

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

Dividends

BDSKX vs. UBVLX - Dividend Comparison

BDSKX's dividend yield for the trailing twelve months is around 8.49%, more than UBVLX's 8.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BDSKX BlackRock Advantage Small Cap Core Fund Class K	8.49%	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	8.24%	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 BDSKX and UBVLX in my portfolio?

BDSKX and UBVLX have a correlation of 0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BDSKX or UBVLX?

UBVLX has higher volatility (5.24%) compared to BDSKX (3.79%). In terms of maximum drawdown, BDSKX dropped -43.30% vs UBVLX's -67.24%.

Which has better risk-adjusted returns?

BDSKX currently has the higher Sharpe Ratio (1.92 vs 1.07), 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.