BSTZ vs. DLY

Last updated Jun 9, 2026

BSTZ (BlackRock Science and Technology Trust II) is a stock, while DLY (DoubleLine Yield Opportunities Fund) is Multisector Bonds fund actively managed by DoubleLine. Over the past 5 years, BSTZ returned 5.44%/yr vs 1.85%/yr for DLY. At a 0.35 correlation, their price movements are largely independent.

Performance

BSTZ vs. DLY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Science and Technology Trust II (BSTZ) and DoubleLine Yield Opportunities Fund (DLY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BSTZ achieves a 35.52% return, which is significantly higher than DLY's -1.24% return.

BSTZ

• 1D: 1.93%
• 1M: 6.46%
• YTD: 35.52%
• 6M: 37.09%
• 1Y: 68.99%
• 3Y*: 32.24%
• 5Y*: 5.44%
• 10Y*: —

DLY

• 1D: -0.22%
• 1M: -2.35%
• YTD: -1.24%
• 6M: -0.58%
• 1Y: -3.01%
• 3Y*: 8.31%
• 5Y*: 1.85%
• 10Y*: —

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

BSTZ vs. DLY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
BSTZ BlackRock Science and Technology Trust II	35.52%	25.06%	37.49%	18.72%	-55.34%	12.71%	88.94%
DLY DoubleLine Yield Opportunities Fund	-1.24%	0.63%	16.29%	25.48%	-23.08%	8.56%	-3.06%

Correlation

The correlation between BSTZ and DLY is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (3Y) Calculated over the trailing 3-year period	0.31
Correlation (5Y) Calculated over the trailing 5-year period	0.38
Correlation (All Time) Calculated using the full available price history since Feb 27, 2020	0.35

Return for Risk

BSTZ vs. DLY — Risk / Return Rank

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

BSTZ

BSTZ Risk / Return Rank: 95
BSTZ Sharpe Ratio Rank: 95
BSTZ Sortino Ratio Rank: 93
BSTZ Omega Ratio Rank: 93
BSTZ Calmar Ratio Rank: 96
BSTZ Martin Ratio Rank: 97

DLY

DLY Risk / Return Rank: 1
DLY Sharpe Ratio Rank: 2
DLY Sortino Ratio Rank: 1
DLY Omega Ratio Rank: 1
DLY Calmar Ratio Rank: 2
DLY Martin Ratio Rank: 1

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.

BSTZ vs. DLY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Science and Technology Trust II (BSTZ) and DoubleLine Yield Opportunities Fund (DLY). 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.

	BSTZ	DLY	Difference
Sharpe ratio: Return per unit of total volatility	2.96	-0.37	+3.33
Sortino ratio: Return per unit of downside risk	3.57	-0.49	+4.06
Omega ratio: Gain probability vs. loss probability	1.49	0.94	+0.55
Calmar ratio: Return relative to maximum drawdown	7.49	-0.35	+7.83
Martin ratio: Return relative to average drawdown	23.14	-0.88	+24.02
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BSTZ vs. DLY - Sharpe Ratio Comparison

The current BSTZ Sharpe Ratio is 2.96, which is higher than the DLY Sharpe Ratio of -0.37. The chart below compares the historical Sharpe Ratios of BSTZ and DLY, 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

	BSTZ	DLY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.96	-0.37	+3.33
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.20	0.14	+0.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.51	0.17	+0.34

Drawdowns

BSTZ vs. DLY - Drawdown Comparison

The maximum BSTZ drawdown since its inception was -60.51%, which is greater than DLY's maximum drawdown of -28.61%. Use the drawdown chart below to compare losses from any high point for BSTZ and DLY.

Drawdown Indicators

	BSTZ	DLY	Difference
Max Drawdown Largest peak-to-trough decline	-60.51%	-28.61%	-31.90%
Max Drawdown (1Y) Largest decline over 1 year	-9.26%	-8.74%	-0.52%
Max Drawdown (3Y) Largest decline over 3 years	-25.31%	-10.81%	-14.50%
Max Drawdown (5Y) Largest decline over 5 years	-60.51%	-28.61%	-31.90%
Current Drawdown Current decline from peak	-6.18%	-5.31%	-0.87%
Average Drawdown Average peak-to-trough decline	-27.52%	-7.82%	-19.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.99%	3.44%	-0.45%

Volatility

BSTZ vs. DLY - Volatility Comparison

BlackRock Science and Technology Trust II (BSTZ) has a higher volatility of 11.24% compared to DoubleLine Yield Opportunities Fund (DLY) at 1.94%. This indicates that BSTZ's price experiences larger fluctuations and is considered to be riskier than DLY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BSTZ	DLY	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.24%	1.94%	+9.30%
Volatility (6M) Calculated over the trailing 6-month period	20.16%	6.87%	+13.29%
Volatility (1Y) Calculated over the trailing 1-year period	23.51%	8.12%	+15.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.63%	13.57%	+14.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.24%	15.04%	+15.20%

Dividends

BSTZ vs. DLY - Dividend Comparison

BSTZ's dividend yield for the trailing twelve months is around 8.52%, less than DLY's 10.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
BSTZ BlackRock Science and Technology Trust II	8.52%	12.46%	9.75%	10.90%	14.73%	5.14%	3.42%	2.44%
DLY DoubleLine Yield Opportunities Fund	10.16%	9.63%	8.85%	9.84%	10.67%	7.49%	5.67%	0.00%

Frequently Asked Questions

Can I hold both BSTZ and DLY in my portfolio?

BSTZ and DLY have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BSTZ or DLY?

BSTZ has higher volatility (11.24%) compared to DLY (1.94%). In terms of maximum drawdown, BSTZ dropped -60.51% vs DLY's -28.61%.

Which has better risk-adjusted returns?

BSTZ currently has the higher Sharpe Ratio (2.96 vs -0.37), 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.