ITA vs. VOO

Last updated Jun 23, 2026

ITA (iShares U.S. Aerospace & Defense ETF) and VOO (Vanguard S&P 500 ETF) are both exchange-traded funds - ITA is a Aerospace & Defense fund tracking the Dow Jones U.S. Select Aerospace & Defense Index, while VOO is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, ITA returned 15.64%/yr vs 15.77%/yr for VOO. A 0.72 correlation means they provide meaningful diversification when combined. ITA charges 0.38%/yr vs 0.03%/yr for VOO.

Performance

ITA vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares U.S. Aerospace & Defense ETF (ITA) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with ITA having a 9.85% return and VOO slightly lower at 9.75%. Both investments have delivered pretty close results over the past 10 years, with ITA having a 15.64% annualized return and VOO not far ahead at 15.77%.

ITA

• 1D: -1.46%
• 1M: 4.57%
• YTD: 9.85%
• 6M: 7.51%
• 1Y: 31.18%
• 3Y*: 28.43%
• 5Y*: 17.33%
• 10Y*: 15.64%

VOO

• 1D: -0.29%
• 1M: 0.08%
• YTD: 9.75%
• 6M: 9.30%
• 1Y: 26.77%
• 3Y*: 21.36%
• 5Y*: 13.58%
• 10Y*: 15.77%

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

ITA vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ITA iShares U.S. Aerospace & Defense ETF	9.85%	48.64%	15.81%	14.33%	9.96%	9.39%	-13.57%	30.51%	-7.22%	35.24%
VOO Vanguard S&P 500 ETF	9.75%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between ITA and VOO is 0.53, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.53
Correlation (3Y) Calculated over the trailing 3-year period	0.55
Correlation (5Y) Calculated over the trailing 5-year period	0.63
Correlation (10Y) Calculated over the trailing 10-year period	0.65
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.72

The correlation between ITA and VOO shifts across timeframes, from 0.53 (1 year) to 0.72 (all time), reflecting how their relationship changes across market environments.

ITA vs. VOO - Sectors Allocation Comparison

Sectors	ITA	VOO
Industrials	99.6%	7.6%
Technology	0.1%	39.1%
Basic Materials	-	1.7%
Communication Services	-	10.5%
Consumer Cyclical	-	9.8%
Consumer Defensive	-	4.5%
Energy	-	3.2%
Financial Services	-	10.9%
Healthcare	-	8.3%
Real Estate	-	1.8%
Utilities	-	2.5%

Return for Risk

ITA vs. VOO — Risk / Return Rank

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

ITA

ITA Risk / Return Rank: 39
ITA Sharpe Ratio Rank: 42
ITA Sortino Ratio Rank: 42
ITA Omega Ratio Rank: 38
ITA Calmar Ratio Rank: 41
ITA Martin Ratio Rank: 35

VOO

VOO Risk / Return Rank: 68
VOO Sharpe Ratio Rank: 70
VOO Sortino Ratio Rank: 67
VOO Omega Ratio Rank: 69
VOO Calmar Ratio Rank: 63
VOO Martin Ratio Rank: 74

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.

ITA vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Aerospace & Defense ETF (ITA) and Vanguard S&P 500 ETF (VOO). 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.

	ITA	VOO	Difference
Sharpe ratio: Return per unit of total volatility	1.43	2.17	-0.74
Sortino ratio: Return per unit of downside risk	2.10	2.93	-0.83
Omega ratio: Gain probability vs. loss probability	1.25	1.39	-0.15
Calmar ratio: Return relative to maximum drawdown	1.98	3.02	-1.04
Martin ratio: Return relative to average drawdown	5.21	13.58	-8.37

ITA vs. VOO - Sharpe Ratio Comparison

The current ITA Sharpe Ratio is 1.43, which is lower than the VOO Sharpe Ratio of 2.17. The chart below compares the historical Sharpe Ratios of ITA and VOO, 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

ITA vs. VOO - Drawdown Comparison

The maximum ITA drawdown since its inception was -59.72%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for ITA and VOO.

Drawdown Indicators

	ITA	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-59.72%	-33.99%	-25.73%
Max Drawdown (1Y) Largest decline over 1 year	-15.82%	-8.90%	-6.92%
Max Drawdown (3Y) Largest decline over 3 years	-15.82%	-18.69%	+2.87%
Max Drawdown (5Y) Largest decline over 5 years	-18.72%	-24.52%	+5.80%
Max Drawdown (10Y) Largest decline over 10 years	-51.00%	-33.99%	-17.01%
Current Drawdown Current decline from peak	-5.89%	-1.74%	-4.15%
Average Drawdown Average peak-to-trough decline	-9.45%	-3.68%	-5.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.00%	1.98%	+4.02%

Volatility

ITA vs. VOO - Volatility Comparison

iShares U.S. Aerospace & Defense ETF (ITA) has a higher volatility of 8.50% compared to Vanguard S&P 500 ETF (VOO) at 4.60%. This indicates that ITA's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ITA	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.50%	4.60%	+3.90%
Volatility (6M) Calculated over the trailing 6-month period	18.55%	9.73%	+8.82%
Volatility (1Y) Calculated over the trailing 1-year period	21.95%	12.39%	+9.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.23%	16.90%	+3.33%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.26%	18.05%	+5.21%

ITA vs. VOO - Expense Ratio Comparison

ITA has a 0.38% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

ITA vs. VOO - Dividend Comparison

ITA's dividend yield for the trailing twelve months is around 0.45%, less than VOO's 1.04% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ITA iShares U.S. Aerospace & Defense ETF	0.45%	0.55%	0.85%	0.93%	0.95%	0.82%	1.07%	1.54%	1.13%	0.91%	1.07%	1.04%
VOO Vanguard S&P 500 ETF	1.04%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both ITA and VOO in my portfolio?

ITA and VOO have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ITA or VOO?

ITA has higher volatility (8.50%) compared to VOO (4.60%). In terms of maximum drawdown, ITA dropped -59.72% vs VOO's -33.99%.

Which ETF is better, ITA or VOO?

On 10-year performance, VOO leads with 15.77% vs 15.64% for ITA. On fees, VOO is cheaper at 0.03% per year. On volatility, VOO has been the lower-risk option at 4.60%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ITA or VOO?

Over the 10-year period, VOO has performed better with a 15.77% return vs 15.64%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ITA or VOO?

VOO is cheaper with a 0.03% expense ratio, compared with 0.38% for ITA.

Which ETF pays a higher dividend yield, ITA or VOO?

VOO has the higher dividend yield at 1.04%, compared with 0.45% for ITA.

What is the main difference between ITA and VOO?

ITA is categorized as Aerospace & Defense, while VOO is S&P 500. ITA tracks Dow Jones U.S. Select Aerospace & Defense Index, while VOO tracks S&P 500 Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.38% for ITA and 0.03% for VOO.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (2.17 vs 1.43), 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.