USMC vs. FSPSX

Last updated Jun 24, 2026

USMC (Principal U.S. Mega-Cap ETF) and FSPSX (Fidelity International Index Fund) are both funds - USMC is a Large Cap Growth Equities fund tracking the Nasdaq US Mega Cap Select Leaders Index, while FSPSX is a Foreign Large Cap Equities fund tracking the MSCI EAFE Index. Both are passively managed. Over the past 5 years, USMC returned 14.61%/yr vs 9.39%/yr for FSPSX. A 0.70 correlation means they provide meaningful diversification when combined. USMC charges 0.12%/yr vs 0.04%/yr for FSPSX.

Performance

USMC vs. FSPSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal U.S. Mega-Cap ETF (USMC) and Fidelity International Index Fund (FSPSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, USMC achieves a 6.42% return, which is significantly lower than FSPSX's 10.74% return.

USMC

• 1D: -1.37%
• 1M: -0.32%
• YTD: 6.42%
• 6M: 5.31%
• 1Y: 20.33%
• 3Y*: 20.41%
• 5Y*: 14.61%
• 10Y*: —

FSPSX

• 1D: 0.18%
• 1M: 2.11%
• YTD: 10.74%
• 6M: 10.40%
• 1Y: 24.77%
• 3Y*: 17.73%
• 5Y*: 9.39%
• 10Y*: 10.29%

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

USMC vs. FSPSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
USMC Principal U.S. Mega-Cap ETF	6.42%	14.99%	29.82%	31.57%	-17.17%	26.30%	16.05%	27.37%	-2.30%	5.48%
FSPSX Fidelity International Index Fund	10.74%	31.98%	3.70%	18.31%	-14.23%	11.45%	8.16%	22.03%	-13.55%	2.80%

Correlation

The correlation between USMC and FSPSX is 0.67, 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	0.67
Correlation (3Y) Calculated over the trailing 3-year period	0.61
Correlation (5Y) Calculated over the trailing 5-year period	0.68
Correlation (All Time) Calculated using the full available price history since Oct 12, 2017	0.70

The correlation between USMC and FSPSX has been stable across timeframes, ranging from 0.61 to 0.70 - a consistent structural relationship.

Return for Risk

USMC vs. FSPSX — Risk / Return Rank

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

USMC

USMC Risk / Return Rank: 47
USMC Sharpe Ratio Rank: 50
USMC Sortino Ratio Rank: 50
USMC Omega Ratio Rank: 48
USMC Calmar Ratio Rank: 42
USMC Martin Ratio Rank: 47

FSPSX

FSPSX Risk / Return Rank: 39
FSPSX Sharpe Ratio Rank: 40
FSPSX Sortino Ratio Rank: 38
FSPSX Omega Ratio Rank: 38
FSPSX Calmar Ratio Rank: 39
FSPSX Martin Ratio Rank: 42

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. FSPSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal U.S. Mega-Cap ETF (USMC) and Fidelity International Index Fund (FSPSX). 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.

	USMC	FSPSX	Difference
Sharpe ratio: Return per unit of total volatility	1.66	1.69	-0.03
Sortino ratio: Return per unit of downside risk	2.35	2.39	-0.04
Omega ratio: Gain probability vs. loss probability	1.29	1.31	-0.02
Calmar ratio: Return relative to maximum drawdown	1.98	2.26	-0.28
Martin ratio: Return relative to average drawdown	7.47	8.48	-1.00

USMC vs. FSPSX - Sharpe Ratio Comparison

The current USMC Sharpe Ratio is 1.66, which is comparable to the FSPSX Sharpe Ratio of 1.69. The chart below compares the historical Sharpe Ratios of USMC and FSPSX, 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

USMC vs. FSPSX - Drawdown Comparison

The maximum USMC drawdown since its inception was -29.97%, smaller than the maximum FSPSX drawdown of -33.69%. Use the drawdown chart below to compare losses from any high point for USMC and FSPSX.

Drawdown Indicators

	USMC	FSPSX	Difference
Max Drawdown Largest peak-to-trough decline	-29.97%	-33.69%	+3.72%
Max Drawdown (1Y) Largest decline over 1 year	-10.30%	-11.39%	+1.09%
Max Drawdown (3Y) Largest decline over 3 years	-19.12%	-13.58%	-5.54%
Max Drawdown (5Y) Largest decline over 5 years	-24.09%	-29.41%	+5.32%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.69%	—
Current Drawdown Current decline from peak	-2.46%	0.00%	-2.46%
Average Drawdown Average peak-to-trough decline	-4.39%	-6.53%	+2.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.73%	3.04%	-0.31%

Volatility

USMC vs. FSPSX - Volatility Comparison

The current volatility for Principal U.S. Mega-Cap ETF (USMC) is 4.43%, while Fidelity International Index Fund (FSPSX) has a volatility of 4.77%. This indicates that USMC experiences smaller price fluctuations and is considered to be less risky than FSPSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	USMC	FSPSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.43%	4.77%	-0.34%
Volatility (6M) Calculated over the trailing 6-month period	9.43%	12.68%	-3.25%
Volatility (1Y) Calculated over the trailing 1-year period	12.32%	15.26%	-2.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.43%	16.07%	+0.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.25%	16.53%	+1.72%

USMC vs. FSPSX - Expense Ratio Comparison

USMC has a 0.12% expense ratio, which is higher than FSPSX's 0.04% 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. FSPSX - Dividend Comparison

USMC's dividend yield for the trailing twelve months is around 0.76%, less than FSPSX's 2.85% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FSPSX Fidelity International Index Fund	2.85%	3.15%	3.27%	2.79%	2.66%	3.07%	1.84%	3.18%	2.79%	2.50%	3.08%	2.79%
USMC Principal U.S. Mega-Cap ETF	0.76%	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 FSPSX in my portfolio?

USMC and FSPSX have a correlation of 0.67, 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 FSPSX?

FSPSX has higher volatility (4.77%) compared to USMC (4.43%). In terms of maximum drawdown, USMC dropped -29.97% vs FSPSX's -33.69%.

Which has better risk-adjusted returns?

FSPSX currently has the higher Sharpe Ratio (1.69 vs 1.66), 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.