BSTZ vs. HYT

Last updated Jun 13, 2026

BSTZ (BlackRock Science and Technology Trust II) is a stock, while HYT (BlackRock Corporate High Yield Fund) is High Yield Bonds fund actively managed by BlackRock. Over the past 5 years, BSTZ returned 5.61%/yr vs 2.52%/yr for HYT. At a 0.44 correlation, their price movements are largely independent.

Performance

BSTZ vs. HYT - Performance Comparison

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

Returns By Period

In the year-to-date period, BSTZ achieves a 40.69% return, which is significantly higher than HYT's 1.45% return.

BSTZ

• 1D: 1.45%
• 1M: 9.27%
• YTD: 40.69%
• 6M: 45.18%
• 1Y: 74.28%
• 3Y*: 32.82%
• 5Y*: 5.61%
• 10Y*: —

HYT

• 1D: 0.35%
• 1M: -0.14%
• YTD: 1.45%
• 6M: -2.59%
• 1Y: -2.23%
• 3Y*: 10.05%
• 5Y*: 2.52%
• 10Y*: 7.43%

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

BSTZ vs. HYT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
BSTZ BlackRock Science and Technology Trust II	40.69%	25.06%	37.49%	18.72%	-55.34%	12.71%	87.46%	5.04%
HYT BlackRock Corporate High Yield Fund	1.45%	0.06%	14.43%	19.92%	-22.58%	16.62%	11.55%	10.92%

Correlation

The correlation between BSTZ and HYT is 0.37, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.37
Correlation (3Y) Calculated over the trailing 3-year period	0.36
Correlation (5Y) Calculated over the trailing 5-year period	0.45
Correlation (All Time) Calculated using the full available price history since Jun 26, 2019	0.44

Return for Risk

BSTZ vs. HYT — Risk / Return Rank

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

BSTZ

BSTZ Risk / Return Rank: 96
BSTZ Sharpe Ratio Rank: 96
BSTZ Sortino Ratio Rank: 95
BSTZ Omega Ratio Rank: 94
BSTZ Calmar Ratio Rank: 97
BSTZ Martin Ratio Rank: 97

HYT

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

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. HYT - Risk-Adjusted Trends Comparison

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

	BSTZ	HYT	Difference
Sharpe ratio: Return per unit of total volatility	3.12	-0.23	+3.34
Sortino ratio: Return per unit of downside risk	3.75	-0.25	+4.00
Omega ratio: Gain probability vs. loss probability	1.51	0.97	+0.54
Calmar ratio: Return relative to maximum drawdown	8.06	-0.22	+8.28
Martin ratio: Return relative to average drawdown	24.16	-0.53	+24.69

BSTZ vs. HYT - Sharpe Ratio Comparison

The current BSTZ Sharpe Ratio is 3.12, which is higher than the HYT Sharpe Ratio of -0.23. The chart below compares the historical Sharpe Ratios of BSTZ and HYT, 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

BSTZ vs. HYT - Drawdown Comparison

The maximum BSTZ drawdown since its inception was -60.51%, which is greater than HYT's maximum drawdown of -56.95%. Use the drawdown chart below to compare losses from any high point for BSTZ and HYT.

Drawdown Indicators

	BSTZ	HYT	Difference
Max Drawdown Largest peak-to-trough decline	-60.51%	-56.95%	-3.56%
Max Drawdown (1Y) Largest decline over 1 year	-9.26%	-10.17%	+0.91%
Max Drawdown (3Y) Largest decline over 3 years	-25.31%	-13.95%	-11.36%
Max Drawdown (5Y) Largest decline over 5 years	-60.51%	-29.05%	-31.46%
Max Drawdown (10Y) Largest decline over 10 years	—	-42.59%	—
Current Drawdown Current decline from peak	-2.60%	-4.65%	+2.05%
Average Drawdown Average peak-to-trough decline	-27.46%	-5.90%	-21.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.08%	4.23%	-1.15%

Volatility

BSTZ vs. HYT - Volatility Comparison

BlackRock Science and Technology Trust II (BSTZ) has a higher volatility of 11.58% compared to BlackRock Corporate High Yield Fund (HYT) at 2.62%. This indicates that BSTZ's price experiences larger fluctuations and is considered to be riskier than HYT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BSTZ	HYT	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.58%	2.62%	+8.96%
Volatility (6M) Calculated over the trailing 6-month period	20.72%	8.02%	+12.70%
Volatility (1Y) Calculated over the trailing 1-year period	23.97%	9.95%	+14.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.69%	14.47%	+13.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.26%	16.93%	+13.33%

Dividends

BSTZ vs. HYT - Dividend Comparison

BSTZ's dividend yield for the trailing twelve months is around 8.21%, less than HYT's 10.84% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BSTZ BlackRock Science and Technology Trust II	8.21%	12.46%	9.75%	10.90%	14.73%	5.14%	3.42%	2.44%	0.00%	0.00%	0.00%	0.00%
HYT BlackRock Corporate High Yield Fund	10.84%	10.50%	9.53%	9.91%	9.80%	7.58%	8.18%	7.92%	9.20%	7.68%	8.23%	10.18%

Frequently Asked Questions

Can I hold both BSTZ and HYT in my portfolio?

BSTZ and HYT have a correlation of 0.37, 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 HYT?

BSTZ has higher volatility (11.58%) compared to HYT (2.62%). In terms of maximum drawdown, BSTZ dropped -60.51% vs HYT's -56.95%.

Which has better risk-adjusted returns?

BSTZ currently has the higher Sharpe Ratio (3.12 vs -0.23), 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.