SEA vs. USOI

Last updated Jun 5, 2026

SEA (U.S. Global Sea to Sky Cargo ETF) and USOI (Credit Suisse X-Links Crude Oil Shares Covered Call ETN) are both exchange-traded funds - SEA is a Industrials Equities fund tracking the U.S. Global Sea to Sky Cargo Index - Benchmark TR Gross, while USOI is a Commodities fund tracking the Credit Suisse NASDAQ WTI Crude Oil FLOWS 106 Index. Both are passively managed. Over the past year, SEA returned 31.28% vs 46.39% for USOI. At a 0.07 correlation, their price movements are largely independent. SEA charges 0.60%/yr vs 0.85%/yr for USOI.

Performance

SEA vs. USOI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in U.S. Global Sea to Sky Cargo ETF (SEA) and Credit Suisse X-Links Crude Oil Shares Covered Call ETN (USOI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SEA achieves a 21.42% return, which is significantly lower than USOI's 47.45% return.

SEA

• 1D: 0.53%
• 1M: -1.78%
• YTD: 21.42%
• 6M: 20.68%
• 1Y: 31.28%
• 3Y*: 19.14%
• 5Y*: —
• 10Y*: —

USOI

• 1D: -2.04%
• 1M: 0.59%
• YTD: 47.45%
• 6M: 44.00%
• 1Y: 46.39%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SEA vs. USOI - Yearly Performance Comparison

	2026 (YTD)	2025	2024
SEA U.S. Global Sea to Sky Cargo ETF	21.42%	16.78%	-16.55%
USOI Credit Suisse X-Links Crude Oil Shares Covered Call ETN	47.45%	-8.78%	6.94%

Correlation

The correlation between SEA and USOI is -0.11, 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	-0.11
Correlation (All Time) Calculated using the full available price history since Jun 4, 2024	0.07

The correlation between SEA and USOI shifts across timeframes, from -0.11 (1 year) to 0.07 (all time), reflecting how their relationship changes across market environments.

Return for Risk

SEA vs. USOI — Risk / Return Rank

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

SEA

SEA Risk / Return Rank: 59
SEA Sharpe Ratio Rank: 58
SEA Sortino Ratio Rank: 58
SEA Omega Ratio Rank: 55
SEA Calmar Ratio Rank: 60
SEA Martin Ratio Rank: 66

USOI

USOI Risk / Return Rank: 62
USOI Sharpe Ratio Rank: 63
USOI Sortino Ratio Rank: 58
USOI Omega Ratio Rank: 57
USOI Calmar Ratio Rank: 78
USOI Martin Ratio Rank: 54

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.

SEA vs. USOI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for U.S. Global Sea to Sky Cargo ETF (SEA) and Credit Suisse X-Links Crude Oil Shares Covered Call ETN (USOI). 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.

	SEA	USOI	Difference
Sharpe ratio: Return per unit of total volatility	1.93	2.08	-0.15
Sortino ratio: Return per unit of downside risk	2.71	2.69	+0.02
Omega ratio: Gain probability vs. loss probability	1.34	1.35	-0.01
Calmar ratio: Return relative to maximum drawdown	2.95	3.92	-0.97
Martin ratio: Return relative to average drawdown	11.96	9.08	+2.88
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SEA vs. USOI - Sharpe Ratio Comparison

The current SEA Sharpe Ratio is 1.93, which is comparable to the USOI Sharpe Ratio of 2.08. The chart below compares the historical Sharpe Ratios of SEA and USOI, 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

	SEA	USOI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.93	2.08	-0.15
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	0.89	-0.49

Drawdowns

SEA vs. USOI - Drawdown Comparison

The maximum SEA drawdown since its inception was -39.53%, which is greater than USOI's maximum drawdown of -19.49%. Use the drawdown chart below to compare losses from any high point for SEA and USOI.

Drawdown Indicators

	SEA	USOI	Difference
Max Drawdown Largest peak-to-trough decline	-39.53%	-19.49%	-20.04%
Max Drawdown (1Y) Largest decline over 1 year	-10.67%	-11.90%	+1.23%
Max Drawdown (3Y) Largest decline over 3 years	-32.42%	—	—
Current Drawdown Current decline from peak	-2.56%	-5.06%	+2.50%
Average Drawdown Average peak-to-trough decline	-14.30%	-7.20%	-7.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.62%	5.13%	-2.51%

Volatility

SEA vs. USOI - Volatility Comparison

The current volatility for U.S. Global Sea to Sky Cargo ETF (SEA) is 4.48%, while Credit Suisse X-Links Crude Oil Shares Covered Call ETN (USOI) has a volatility of 10.37%. This indicates that SEA experiences smaller price fluctuations and is considered to be less risky than USOI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SEA	USOI	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.48%	10.37%	-5.89%
Volatility (6M) Calculated over the trailing 6-month period	12.02%	18.34%	-6.32%
Volatility (1Y) Calculated over the trailing 1-year period	16.29%	22.46%	-6.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.66%	22.61%	-0.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.66%	22.61%	-0.95%

SEA vs. USOI - Expense Ratio Comparison

SEA has a 0.60% expense ratio, which is lower than USOI's 0.85% expense ratio.

Dividends

SEA vs. USOI - Dividend Comparison

SEA's dividend yield for the trailing twelve months is around 5.56%, less than USOI's 37.65% yield.

Position	TTM	2025	2024	2023	2022
SEA U.S. Global Sea to Sky Cargo ETF	5.56%	6.76%	18.47%	9.85%	18.73%
USOI Credit Suisse X-Links Crude Oil Shares Covered Call ETN	37.65%	27.21%	12.54%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SEA and USOI in my portfolio?

SEA and USOI have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SEA or USOI?

USOI has higher volatility (10.37%) compared to SEA (4.48%). In terms of maximum drawdown, SEA dropped -39.53% vs USOI's -19.49%.

Which ETF is better, SEA or USOI?

On 1-year performance, USOI leads with 46.39% vs 31.28% for SEA. On fees, SEA is cheaper at 0.60% per year. On volatility, SEA has been the lower-risk option at 4.48%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SEA or USOI?

Over the 1-year period, USOI has performed better with a 46.39% return vs 31.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SEA or USOI?

SEA is cheaper with a 0.60% expense ratio, compared with 0.85% for USOI.

Which ETF pays a higher dividend yield, SEA or USOI?

USOI has the higher dividend yield at 37.65%, compared with 5.56% for SEA.

What is the main difference between SEA and USOI?

SEA is categorized as Industrials Equities, while USOI is Commodities. SEA tracks U.S. Global Sea to Sky Cargo Index - Benchmark TR Gross, while USOI tracks Credit Suisse NASDAQ WTI Crude Oil FLOWS 106 Index. They also come from different issuers: US Global and Credit Suisse. Their fees differ too: 0.60% for SEA and 0.85% for USOI.

Which has better risk-adjusted returns?

USOI currently has the higher Sharpe Ratio (2.08 vs 1.93), 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.