CEFS vs. BSTZ

Last updated Apr 1, 2026

Compare and contrast key facts about Saba Closed-End Funds ETF (CEFS) and BlackRock Science and Technology Trust II (BSTZ).

CEFS is an actively managed fund by Exchange Traded Concepts. It was launched on Mar 21, 2017.

Performance

CEFS vs. BSTZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Saba Closed-End Funds ETF (CEFS) and BlackRock Science and Technology Trust II (BSTZ). The values are adjusted to include any dividend payments, if applicable.

CEFS vs. BSTZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
CEFS Saba Closed-End Funds ETF	-0.33%	16.67%	23.48%	20.99%	-7.08%	17.86%	3.40%	6.65%
BSTZ BlackRock Science and Technology Trust II	0.13%	25.06%	37.49%	18.72%	-55.34%	12.71%	87.46%	4.20%

Returns By Period

In the year-to-date period, CEFS achieves a -0.33% return, which is significantly lower than BSTZ's 0.13% return.

CEFS

• 1D: 2.04%
• 1M: -2.99%
• YTD: -0.33%
• 6M: 3.31%
• 1Y: 14.56%
• 3Y*: 17.06%
• 5Y*: 11.58%
• 10Y*: —

BSTZ

• 1D: 4.43%
• 1M: -1.94%
• YTD: 0.13%
• 6M: 6.05%
• 1Y: 41.49%
• 3Y*: 18.36%
• 5Y*: -0.08%
• 10Y*: —

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

Return for Risk

CEFS vs. BSTZ — Risk / Return Rank

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

CEFS

CEFS Risk / Return Rank: 66
CEFS Sharpe Ratio Rank: 66
CEFS Sortino Ratio Rank: 63
CEFS Omega Ratio Rank: 70
CEFS Calmar Ratio Rank: 61
CEFS Martin Ratio Rank: 72

BSTZ

BSTZ Risk / Return Rank: 88
BSTZ Sharpe Ratio Rank: 88
BSTZ Sortino Ratio Rank: 86
BSTZ Omega Ratio Rank: 86
BSTZ Calmar Ratio Rank: 88
BSTZ Martin Ratio Rank: 92

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.

CEFS vs. BSTZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Saba Closed-End Funds ETF (CEFS) and BlackRock Science and Technology Trust II (BSTZ). 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.

	CEFS	BSTZ	Difference
Sharpe ratio Return per unit of total volatility	1.11	1.75	-0.63
Sortino ratio Return per unit of downside risk	1.54	2.40	-0.87
Omega ratio Gain probability vs. loss probability	1.25	1.33	-0.08
Calmar ratio Return relative to maximum drawdown	1.43	3.36	-1.93
Martin ratio Return relative to average drawdown	6.94	11.87	-4.92
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CEFS vs. BSTZ - Sharpe Ratio Comparison

The current CEFS Sharpe Ratio is 1.11, which is lower than the BSTZ Sharpe Ratio of 1.75. The chart below compares the historical Sharpe Ratios of CEFS and BSTZ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CEFS	BSTZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.11	1.75	-0.63
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.90	-0.00	+0.90
Sharpe Ratio (All Time) Calculated using the full available price history	0.70	0.36	+0.34

Correlation

The correlation between CEFS and BSTZ is 0.51, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

CEFS vs. BSTZ - Dividend Comparison

CEFS's dividend yield for the trailing twelve months is around 8.01%, less than BSTZ's 11.92% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
CEFS Saba Closed-End Funds ETF	8.01%	7.84%	8.79%	9.20%	11.32%	10.73%	8.61%	8.10%	10.43%	5.02%
BSTZ BlackRock Science and Technology Trust II	11.92%	12.46%	9.75%	10.90%	14.73%	5.14%	3.42%	2.44%	0.00%	0.00%

Drawdowns

CEFS vs. BSTZ - Drawdown Comparison

The maximum CEFS drawdown since its inception was -38.99%, smaller than the maximum BSTZ drawdown of -60.51%. Use the drawdown chart below to compare losses from any high point for CEFS and BSTZ.

Drawdown Indicators

	CEFS	BSTZ	Difference
Max Drawdown Largest peak-to-trough decline	-38.99%	-60.51%	+21.52%
Max Drawdown (1Y) Largest decline over 1 year	-9.80%	-11.57%	+1.77%
Max Drawdown (5Y) Largest decline over 5 years	-16.85%	-60.51%	+43.66%
Current Drawdown Current decline from peak	-3.75%	-17.70%	+13.95%
Average Drawdown Average peak-to-trough decline	-3.73%	-28.15%	+24.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.02%	3.28%	-1.26%

Volatility

CEFS vs. BSTZ - Volatility Comparison

The current volatility for Saba Closed-End Funds ETF (CEFS) is 4.75%, while BlackRock Science and Technology Trust II (BSTZ) has a volatility of 10.14%. This indicates that CEFS experiences smaller price fluctuations and is considered to be less risky than BSTZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CEFS	BSTZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.75%	10.14%	-5.39%
Volatility (6M) Calculated over the trailing 6-month period	7.46%	16.03%	-8.57%
Volatility (1Y) Calculated over the trailing 1-year period	13.15%	23.94%	-10.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.99%	27.17%	-14.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.38%	30.09%	-14.71%