USMC vs. ITOT

Last updated Jun 3, 2026

USMC (Principal U.S. Mega-Cap ETF) and ITOT (iShares Core S&P Total U.S. Stock Market ETF) are both Large Cap Growth Equities funds - USMC tracks the Nasdaq US Mega Cap Select Leaders Index while ITOT tracks the S&P Composite 1500 Index. Both are passively managed. Over the past 5 years, USMC returned 15.68%/yr vs 13.05%/yr for ITOT. Their correlation of 0.91 suggests significant overlap in exposure. USMC charges 0.12%/yr vs 0.03%/yr for ITOT.

Performance

USMC vs. ITOT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal U.S. Mega-Cap ETF (USMC) and iShares Core S&P Total U.S. Stock Market ETF (ITOT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, USMC achieves a 9.11% return, which is significantly lower than ITOT's 12.07% return.

USMC

• 1D: 0.11%
• 1M: 5.62%
• YTD: 9.11%
• 6M: 8.87%
• 1Y: 24.67%
• 3Y*: 22.12%
• 5Y*: 15.68%
• 10Y*: —

ITOT

• 1D: 0.25%
• 1M: 5.39%
• YTD: 12.07%
• 6M: 12.47%
• 1Y: 29.98%
• 3Y*: 22.39%
• 5Y*: 13.05%
• 10Y*: 15.10%

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

USMC vs. ITOT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
USMC Principal U.S. Mega-Cap ETF	9.11%	14.99%	29.82%	31.57%	-17.17%	26.30%	16.05%	27.37%	-2.30%	5.48%
ITOT iShares Core S&P Total U.S. Stock Market ETF	12.07%	17.00%	23.80%	26.12%	-19.47%	25.68%	20.71%	30.67%	-5.33%	5.15%

Correlation

The correlation between USMC and ITOT is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Oct 13, 2017	0.91

The correlation between USMC and ITOT has been stable across timeframes, ranging from 0.90 to 0.93 - a consistent structural relationship.

USMC vs. ITOT - Sectors Allocation Comparison

Sectors	USMC	ITOT
Technology	29.1%	33.8%
Financial Services	19.6%	12.1%
Communication Services	14.7%	10.3%
Consumer Defensive	9.6%	4.7%
Consumer Cyclical	8.4%	10.1%
Healthcare	8.1%	9.0%
Industrials	5.6%	9.5%
Energy	4.8%	3.7%
Basic Materials	-	2.1%
Real Estate	-	2.4%
Utilities	-	2.3%

Return for Risk

USMC vs. ITOT — Risk / Return Rank

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

USMC

USMC Risk / Return Rank: 57
USMC Sharpe Ratio Rank: 62
USMC Sortino Ratio Rank: 63
USMC Omega Ratio Rank: 59
USMC Calmar Ratio Rank: 49
USMC Martin Ratio Rank: 54

ITOT

ITOT Risk / Return Rank: 74
ITOT Sharpe Ratio Rank: 75
ITOT Sortino Ratio Rank: 73
ITOT Omega Ratio Rank: 74
ITOT Calmar Ratio Rank: 69
ITOT Martin Ratio Rank: 80

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.

USMC vs. ITOT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal U.S. Mega-Cap ETF (USMC) and iShares Core S&P Total U.S. Stock Market ETF (ITOT). 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.

	USMC	ITOT	Difference
Sharpe ratio Return per unit of total volatility	2.10	2.47	-0.38
Sortino ratio Return per unit of downside risk	2.95	3.36	-0.41
Omega ratio Gain probability vs. loss probability	1.37	1.44	-0.08
Calmar ratio Return relative to maximum drawdown	2.45	3.45	-1.00
Martin ratio Return relative to average drawdown	9.38	15.85	-6.47
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

USMC vs. ITOT - Sharpe Ratio Comparison

The current USMC Sharpe Ratio is 2.10, which is comparable to the ITOT Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of USMC and ITOT, 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

	USMC	ITOT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.10	2.47	-0.38
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.96	0.76	+0.21
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.83	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.84	0.57	+0.27

Drawdowns

USMC vs. ITOT - Drawdown Comparison

The maximum USMC drawdown since its inception was -29.97%, smaller than the maximum ITOT drawdown of -55.20%. Use the drawdown chart below to compare losses from any high point for USMC and ITOT.

Drawdown Indicators

	USMC	ITOT	Difference
Max Drawdown Largest peak-to-trough decline	-29.97%	-55.20%	+25.23%
Max Drawdown (1Y) Largest decline over 1 year	-10.30%	-8.90%	-1.40%
Max Drawdown (3Y) Largest decline over 3 years	-19.12%	-19.44%	+0.32%
Max Drawdown (5Y) Largest decline over 5 years	-24.09%	-25.36%	+1.27%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.00%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-4.41%	-6.97%	+2.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.69%	1.93%	+0.76%

Volatility

USMC vs. ITOT - Volatility Comparison

The current volatility for Principal U.S. Mega-Cap ETF (USMC) is 2.49%, while iShares Core S&P Total U.S. Stock Market ETF (ITOT) has a volatility of 2.89%. This indicates that USMC experiences smaller price fluctuations and is considered to be less risky than ITOT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	USMC	ITOT	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.49%	2.89%	-0.40%
Volatility (6M) Calculated over the trailing 6-month period	8.69%	9.11%	-0.42%
Volatility (1Y) Calculated over the trailing 1-year period	11.81%	12.18%	-0.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.36%	17.36%	-1.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.25%	18.27%	-0.02%

USMC vs. ITOT - Expense Ratio Comparison

USMC has a 0.12% expense ratio, which is higher than ITOT's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

USMC vs. ITOT - Dividend Comparison

USMC's dividend yield for the trailing twelve months is around 0.74%, less than ITOT's 0.97% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ITOT iShares Core S&P Total U.S. Stock Market ETF	0.97%	1.11%	1.23%	1.47%	1.66%	1.18%	1.41%	1.88%	2.14%	1.69%	1.83%	2.01%
USMC Principal U.S. Mega-Cap ETF	0.74%	0.79%	1.04%	1.35%	1.78%	1.53%	1.55%	2.01%	2.28%	0.24%	0.00%	0.00%

Frequently Asked Questions

Can I hold both USMC and ITOT in my portfolio?

USMC and ITOT have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, USMC or ITOT?

ITOT has higher volatility (2.89%) compared to USMC (2.49%). In terms of maximum drawdown, USMC dropped -29.97% vs ITOT's -55.20%.

Which ETF is better, USMC or ITOT?

On 5-year performance, USMC leads with 15.68% vs 13.05% for ITOT. On fees, ITOT is cheaper at 0.03% per year. On volatility, USMC has been the lower-risk option at 2.49%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, USMC or ITOT?

Over the 5-year period, USMC has performed better with a 15.68% return vs 13.05%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, USMC or ITOT?

ITOT is cheaper with a 0.03% expense ratio, compared with 0.12% for USMC.

Which ETF pays a higher dividend yield, USMC or ITOT?

ITOT has the higher dividend yield at 0.97%, compared with 0.74% for USMC.

What is the main difference between USMC and ITOT?

USMC tracks Nasdaq US Mega Cap Select Leaders Index, while ITOT tracks S&P Composite 1500 Index. They also come from different issuers: Principal and iShares. Their fees differ too: 0.12% for USMC and 0.03% for ITOT.

Which has better risk-adjusted returns?

ITOT currently has the higher Sharpe Ratio (2.47 vs 2.10), 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.