IDRV vs. SEA

Last updated Jun 4, 2026

IDRV (iShares Self-Driving EV and Tech ETF) and SEA (U.S. Global Sea to Sky Cargo ETF) are both exchange-traded funds - IDRV is a Technology Equities fund tracking the NYSE FactSet Global Autonomous Driving and Electric Vehicle Index, while SEA is a Industrials Equities fund tracking the U.S. Global Sea to Sky Cargo Index - Benchmark TR Gross. Both are passively managed. Over the past 3 years, IDRV returned 7.75%/yr vs 18.52%/yr for SEA. A 0.57 correlation means they provide meaningful diversification when combined. IDRV charges 0.48%/yr vs 0.60%/yr for SEA.

Performance

IDRV vs. SEA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Self-Driving EV and Tech ETF (IDRV) and U.S. Global Sea to Sky Cargo ETF (SEA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IDRV achieves a 17.17% return, which is significantly lower than SEA's 20.79% return.

IDRV

• 1D: -2.29%
• 1M: 3.06%
• YTD: 17.17%
• 6M: 18.17%
• 1Y: 49.83%
• 3Y*: 7.75%
• 5Y*: -0.25%
• 10Y*: —

SEA

• 1D: -0.80%
• 1M: 0.23%
• YTD: 20.79%
• 6M: 21.12%
• 1Y: 30.09%
• 3Y*: 18.52%
• 5Y*: —
• 10Y*: —

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

IDRV vs. SEA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
IDRV iShares Self-Driving EV and Tech ETF	17.17%	32.24%	-16.05%	7.83%	-32.87%
SEA U.S. Global Sea to Sky Cargo ETF	20.79%	16.78%	2.52%	19.33%	-17.28%

Correlation

The correlation between IDRV and SEA is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (3Y) Calculated over the trailing 3-year period	0.48
Correlation (All Time) Calculated using the full available price history since Jan 21, 2022	0.57

The correlation between IDRV and SEA has been stable across timeframes, ranging from 0.48 to 0.57 - a consistent structural relationship.

IDRV vs. SEA - Sectors Allocation Comparison

Sectors	IDRV	SEA
Consumer Cyclical	55.0%	-
Industrials	24.8%	82.7%
Basic Materials	18.5%	-
Technology	1.7%	-1.6%
Communication Services	-	0.0%
Consumer Defensive	-	-
Energy	-	17.3%
Financial Services	-	-
Healthcare	-	-
Real Estate	-	-
Utilities	-	-

Return for Risk

IDRV vs. SEA — Risk / Return Rank

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

IDRV

IDRV Risk / Return Rank: 63
IDRV Sharpe Ratio Rank: 59
IDRV Sortino Ratio Rank: 54
IDRV Omega Ratio Rank: 54
IDRV Calmar Ratio Rank: 77
IDRV Martin Ratio Rank: 70

SEA

SEA Risk / Return Rank: 56
SEA Sharpe Ratio Rank: 54
SEA Sortino Ratio Rank: 54
SEA Omega Ratio Rank: 51
SEA Calmar Ratio Rank: 57
SEA Martin Ratio Rank: 64

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.

IDRV vs. SEA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Self-Driving EV and Tech ETF (IDRV) and U.S. Global Sea to Sky Cargo ETF (SEA). 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.

	IDRV	SEA	Difference
Sharpe ratio: Return per unit of total volatility	2.02	1.86	+0.16
Sortino ratio: Return per unit of downside risk	2.62	2.62	0.00
Omega ratio: Gain probability vs. loss probability	1.34	1.32	+0.02
Calmar ratio: Return relative to maximum drawdown	3.97	2.83	+1.13
Martin ratio: Return relative to average drawdown	13.15	11.52	+1.63
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IDRV vs. SEA - Sharpe Ratio Comparison

The current IDRV Sharpe Ratio is 2.02, which is comparable to the SEA Sharpe Ratio of 1.86. The chart below compares the historical Sharpe Ratios of IDRV and SEA, 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

	IDRV	SEA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.02	1.86	+0.16
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.01	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.35	0.39	-0.05

Drawdowns

IDRV vs. SEA - Drawdown Comparison

The maximum IDRV drawdown since its inception was -53.00%, which is greater than SEA's maximum drawdown of -39.53%. Use the drawdown chart below to compare losses from any high point for IDRV and SEA.

Drawdown Indicators

	IDRV	SEA	Difference
Max Drawdown Largest peak-to-trough decline	-53.00%	-39.53%	-13.47%
Max Drawdown (1Y) Largest decline over 1 year	-12.62%	-10.67%	-1.95%
Max Drawdown (3Y) Largest decline over 3 years	-44.00%	-32.42%	-11.58%
Max Drawdown (5Y) Largest decline over 5 years	-53.00%	—	—
Current Drawdown Current decline from peak	-13.79%	-3.07%	-10.72%
Average Drawdown Average peak-to-trough decline	-22.38%	-14.31%	-8.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.80%	2.62%	+1.18%

Volatility

IDRV vs. SEA - Volatility Comparison

iShares Self-Driving EV and Tech ETF (IDRV) has a higher volatility of 9.41% compared to U.S. Global Sea to Sky Cargo ETF (SEA) at 5.17%. This indicates that IDRV's price experiences larger fluctuations and is considered to be riskier than SEA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDRV	SEA	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.41%	5.17%	+4.24%
Volatility (6M) Calculated over the trailing 6-month period	18.86%	12.01%	+6.85%
Volatility (1Y) Calculated over the trailing 1-year period	24.81%	16.28%	+8.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.70%	21.67%	+6.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.09%	21.67%	+6.42%

IDRV vs. SEA - Expense Ratio Comparison

IDRV has a 0.48% expense ratio, which is lower than SEA's 0.60% expense ratio.

Dividends

IDRV vs. SEA - Dividend Comparison

IDRV's dividend yield for the trailing twelve months is around 1.45%, less than SEA's 5.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
IDRV iShares Self-Driving EV and Tech ETF	1.45%	1.70%	2.68%	2.17%	2.29%	1.12%	0.69%	1.29%
SEA U.S. Global Sea to Sky Cargo ETF	5.59%	6.76%	18.47%	9.85%	18.73%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IDRV and SEA in my portfolio?

IDRV and SEA have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IDRV or SEA?

IDRV has higher volatility (9.41%) compared to SEA (5.17%). In terms of maximum drawdown, IDRV dropped -53.00% vs SEA's -39.53%.

Which ETF is better, IDRV or SEA?

On 3-year performance, SEA leads with 18.52% vs 7.75% for IDRV. On fees, IDRV is cheaper at 0.48% per year. On volatility, SEA has been the lower-risk option at 5.17%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IDRV or SEA?

Over the 3-year period, SEA has performed better with a 18.52% return vs 7.75%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IDRV or SEA?

IDRV is cheaper with a 0.48% expense ratio, compared with 0.60% for SEA.

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

SEA has the higher dividend yield at 5.59%, compared with 1.45% for IDRV.

What is the main difference between IDRV and SEA?

IDRV is categorized as Technology Equities, while SEA is Industrials Equities. IDRV tracks NYSE FactSet Global Autonomous Driving and Electric Vehicle Index, while SEA tracks U.S. Global Sea to Sky Cargo Index - Benchmark TR Gross. They also come from different issuers: iShares and US Global. Their fees differ too: 0.48% for IDRV and 0.60% for SEA.

Which has better risk-adjusted returns?

IDRV currently has the higher Sharpe Ratio (2.02 vs 1.86), 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.