SEF vs. BNKU

Last updated Jul 14, 2026

SEF (ProShares Short Financials) and BNKU (MicroSectors U.S. Big Banks Index 3X Leveraged ETNs) are both exchange-traded funds - SEF is a Inverse Equities fund tracking the Dow Jones U.S. Financials Index (-100%), while BNKU is a Leveraged Equities fund tracking the Solactive MicroSectors U.S. Big Banks Index (-300%). Both are passively managed. Over the past year, SEF returned -3.98% vs 92.66% for BNKU. At a correlation of -0.84, they often move in opposite directions. Both charge a 0.95% expense ratio.

Performance

SEF vs. BNKU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares Short Financials (SEF) and MicroSectors U.S. Big Banks Index 3X Leveraged ETNs (BNKU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SEF achieves a -1.02% return, which is significantly lower than BNKU's 29.57% return.

SEF

• 1D: -0.62%
• 1M: -4.86%
• 6M: -0.23%
• YTD: -1.02%
• 1Y: -3.98%
• 3Y*: -12.00%
• 5Y*: -7.28%
• 10Y*: -12.23%

BNKU

• 1D: -1.14%
• 1M: 12.81%
• 6M: 18.36%
• YTD: 29.57%
• 1Y: 92.66%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SEF vs. BNKU - Yearly Performance Comparison

	2026 (YTD)	2025
SEF ProShares Short Financials	-1.02%	-3.33%
BNKU MicroSectors U.S. Big Banks Index 3X Leveraged ETNs	29.57%	34.97%

Correlation

The correlation between SEF and BNKU is -0.83, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.83
Correlation (All Time) Calculated using the full available price history since Feb 20, 2025	-0.84

The correlation between SEF and BNKU has been stable across timeframes, ranging from -0.84 to -0.83 - a consistent structural relationship.

SEF vs. BNKU - Sectors Allocation Comparison

Sectors	SEF	BNKU
Financial Services	74.6%	100.0%
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Healthcare	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

SEF vs. BNKU — Risk / Return Rank

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

SEF

SEF Risk / Return Rank: 6
SEF Sharpe Ratio Rank: 7
SEF Sortino Ratio Rank: 6
SEF Omega Ratio Rank: 6
SEF Calmar Ratio Rank: 7
SEF Martin Ratio Rank: 6

BNKU

BNKU Risk / Return Rank: 54
BNKU Sharpe Ratio Rank: 60
BNKU Sortino Ratio Rank: 53
BNKU Omega Ratio Rank: 53
BNKU Calmar Ratio Rank: 57
BNKU Martin Ratio Rank: 46

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.

SEF vs. BNKU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares Short Financials (SEF) and MicroSectors U.S. Big Banks Index 3X Leveraged ETNs (BNKU). 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.

	SEF	BNKU	Difference
Sharpe ratio: Return per unit of total volatility	-0.27	1.59	-1.87
Sortino ratio: Return per unit of downside risk	-0.30	2.05	-2.35
Omega ratio: Gain probability vs. loss probability	0.97	1.26	-0.30
Calmar ratio: Return relative to maximum drawdown	-0.28	2.27	-2.56
Martin ratio: Return relative to average drawdown	-0.73	5.98	-6.71

SEF vs. BNKU - Sharpe Ratio Comparison

The current SEF Sharpe Ratio is -0.27, which is lower than the BNKU Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of SEF and BNKU, 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

SEF vs. BNKU - Drawdown Comparison

The maximum SEF drawdown since its inception was -96.51%, which is greater than BNKU's maximum drawdown of -61.21%. Use the drawdown chart below to compare losses from any high point for SEF and BNKU.

Drawdown Indicators

	SEF	BNKU	Difference
Max Drawdown Largest peak-to-trough decline	-96.51%	-61.21%	-35.30%
Max Drawdown (1Y) Largest decline over 1 year	-14.12%	-40.97%	+26.85%
Max Drawdown (3Y) Largest decline over 3 years	-39.40%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-41.62%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-73.40%	—	—
Current Drawdown Current decline from peak	-96.45%	-2.00%	-94.45%
Average Drawdown Average peak-to-trough decline	-82.78%	-17.20%	-65.58%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.43%	15.55%	-10.12%

Volatility

SEF vs. BNKU - Volatility Comparison

The current volatility for ProShares Short Financials (SEF) is 4.35%, while MicroSectors U.S. Big Banks Index 3X Leveraged ETNs (BNKU) has a volatility of 17.34%. This indicates that SEF experiences smaller price fluctuations and is considered to be less risky than BNKU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEF	BNKU	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.35%	17.34%	-12.99%
Volatility (6M) Calculated over the trailing 6-month period	11.33%	46.43%	-35.10%
Volatility (1Y) Calculated over the trailing 1-year period	14.65%	58.62%	-43.97%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.98%	72.40%	-54.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.45%	72.40%	-51.95%

SEF vs. BNKU - Expense Ratio Comparison

Both SEF and BNKU have an expense ratio of 0.95%.

Dividends

SEF vs. BNKU - Dividend Comparison

SEF's dividend yield for the trailing twelve months is around 3.39%, while BNKU has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
BNKU MicroSectors U.S. Big Banks Index 3X Leveraged ETNs	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SEF ProShares Short Financials	3.39%	4.33%	5.72%	4.43%	0.39%	0.00%	0.12%	1.25%	0.41%

Frequently Asked Questions

Can I hold both SEF and BNKU in my portfolio?

SEF and BNKU have a correlation of -0.83, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SEF or BNKU?

BNKU has higher volatility (17.34%) compared to SEF (4.35%). In terms of maximum drawdown, SEF dropped -96.51% vs BNKU's -61.21%.

Which ETF is better, SEF or BNKU?

On 1-year performance, BNKU leads with 92.66% vs -3.98% for SEF. Both ETFs have the same 0.95% expense ratio. On volatility, SEF has been the lower-risk option at 4.35%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SEF or BNKU?

Over the 1-year period, BNKU has performed better with a 92.66% return vs -3.98%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SEF or BNKU?

SEF and BNKU have the same expense ratio: 0.95% per year.

Which ETF pays a higher dividend yield, SEF or BNKU?

SEF has the higher dividend yield at 3.39%, compared with 0.00% for BNKU.

What is the main difference between SEF and BNKU?

SEF is categorized as Inverse Equities, while BNKU is Leveraged Equities. SEF tracks Dow Jones U.S. Financials Index (-100%), while BNKU tracks Solactive MicroSectors U.S. Big Banks Index (-300%). They also come from different issuers: ProShares and Bank of Montreal.

Which has better risk-adjusted returns?

BNKU currently has the higher Sharpe Ratio (1.59 vs -0.27), 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.