TEAF vs. BSTZ

Last updated Jun 4, 2026

TEAF (Ecofin Sustainable and Social Impact Term Fund) and BSTZ (BlackRock Science and Technology Trust II) are both stocks. Both are in the Financial Services sector — TEAF in Asset Management, BSTZ in Capital Markets. At a 0.34 correlation, their price movements are largely independent.

Performance

TEAF vs. BSTZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Ecofin Sustainable and Social Impact Term Fund (TEAF) and BlackRock Science and Technology Trust II (BSTZ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

TEAF

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

BSTZ

• 1D: -2.03%
• 1M: 15.29%
• YTD: 41.51%
• 6M: 46.81%
• 1Y: 76.56%
• 3Y*: 33.94%
• 5Y*: 6.57%
• 10Y*: —

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

TEAF vs. BSTZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
TEAF Ecofin Sustainable and Social Impact Term Fund	0.00%	9.74%	12.16%	-0.64%	-5.41%	19.37%	-12.76%	-4.54%
BSTZ BlackRock Science and Technology Trust II	41.51%	25.06%	37.49%	18.72%	-55.34%	12.71%	87.46%	4.20%

Correlation

The correlation between TEAF and BSTZ is 0.10, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.10
Correlation (3Y) Calculated over the trailing 3-year period	0.28
Correlation (5Y) Calculated over the trailing 5-year period	0.39
Correlation (All Time) Calculated using the full available price history since Jun 27, 2019	0.34

Over the past year, the correlation between TEAF and BSTZ has dropped to 0.10 - well below their long-term average of 0.34, suggesting their price drivers have been diverging.

Fundamentals

Total Revenue (TTM) TEAF : $21.36M BSTZ : $361.49M
Gross Profit (TTM) TEAF : $14.31M BSTZ : $169.67M
EBITDA (TTM) TEAF : -$435.19K BSTZ : $586.67M

Return for Risk

TEAF vs. BSTZ — 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: 95
BSTZ Omega Ratio Rank: 94
BSTZ Calmar Ratio Rank: 96
BSTZ Martin Ratio Rank: 97

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.

TEAF vs. BSTZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Ecofin Sustainable and Social Impact Term Fund (TEAF) 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	TEAF	BSTZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	3.39	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.24	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.54	—

Drawdowns

Drawdown Indicators

	TEAF	BSTZ	Difference
Max Drawdown Largest peak-to-trough decline	—	-60.51%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-9.26%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-25.31%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-60.51%	—
Current Drawdown Current decline from peak	—	-2.03%	—
Average Drawdown Average peak-to-trough decline	—	-27.56%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.92%	—

Volatility

Volatility by Period

	TEAF	BSTZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	9.84%	—
Volatility (6M) Calculated over the trailing 6-month period	—	19.24%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	22.76%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	27.51%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	30.18%	—

Dividends

TEAF vs. BSTZ - Dividend Comparison

TEAF's dividend yield for the trailing twelve months is around 3.69%, less than BSTZ's 8.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
BSTZ BlackRock Science and Technology Trust II	8.16%	12.46%	9.75%	10.90%	14.73%	5.14%	3.42%	2.44%
TEAF Ecofin Sustainable and Social Impact Term Fund	3.69%	7.37%	9.00%	9.22%	8.25%	6.18%	8.17%	5.30%

Financials

Frequently Asked Questions

Can I hold both TEAF and BSTZ in my portfolio?

TEAF and BSTZ have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.