FEUS vs. ITOT

Last updated Jun 4, 2026

FEUS (FlexShares ESG & Climate US Large Cap Core Index Fund) and ITOT (iShares Core S&P Total U.S. Stock Market ETF) are both Large Cap Blend Equities funds - FEUS tracks the Northern Trust ESG & Climate US Large Cap Core Index - Benchmark TR Gross while ITOT tracks the S&P Total Market Index. Both are passively managed. Over the past 3 years, FEUS returned 20.38%/yr vs 22.09%/yr for ITOT. With a 0.98 correlation, they move nearly in lockstep. FEUS charges 0.09%/yr vs 0.03%/yr for ITOT.

Performance

FEUS vs. ITOT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FlexShares ESG & Climate US Large Cap Core Index Fund (FEUS) 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, FEUS achieves a 10.28% return, which is significantly lower than ITOT's 11.25% return.

FEUS

• 1D: -0.77%
• 1M: 5.74%
• YTD: 10.28%
• 6M: 10.59%
• 1Y: 26.25%
• 3Y*: 20.38%
• 5Y*: —
• 10Y*: —

ITOT

• 1D: -0.73%
• 1M: 5.01%
• YTD: 11.25%
• 6M: 11.12%
• 1Y: 28.12%
• 3Y*: 22.09%
• 5Y*: 12.69%
• 10Y*: 15.01%

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

FEUS vs. ITOT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
FEUS FlexShares ESG & Climate US Large Cap Core Index Fund	10.28%	14.67%	23.10%	25.54%	-19.10%	9.97%
ITOT iShares Core S&P Total U.S. Stock Market ETF	11.25%	17.00%	23.80%	26.12%	-19.47%	7.99%

Correlation

The correlation between FEUS and ITOT is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (All Time) Calculated using the full available price history since Sep 22, 2021	0.98

The correlation between FEUS and ITOT has been stable across timeframes, ranging from 0.96 to 0.98 - a consistent structural relationship.

FEUS vs. ITOT - Sectors Allocation Comparison

Sectors	FEUS	ITOT
Technology	35.2%	33.8%
Financial Services	11.9%	12.1%
Communication Services	11.1%	10.3%
Consumer Cyclical	10.6%	10.1%
Healthcare	8.6%	9.0%
Industrials	8.6%	9.5%
Consumer Defensive	4.6%	4.7%
Energy	3.7%	3.7%
Real Estate	2.2%	2.4%
Utilities	1.9%	2.3%
Basic Materials	1.6%	2.1%

Return for Risk

FEUS vs. ITOT — Risk / Return Rank

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

FEUS

FEUS Risk / Return Rank: 64
FEUS Sharpe Ratio Rank: 67
FEUS Sortino Ratio Rank: 65
FEUS Omega Ratio Rank: 65
FEUS Calmar Ratio Rank: 57
FEUS Martin Ratio Rank: 65

ITOT

ITOT Risk / Return Rank: 68
ITOT Sharpe Ratio Rank: 69
ITOT Sortino Ratio Rank: 68
ITOT Omega Ratio Rank: 67
ITOT Calmar Ratio Rank: 63
ITOT Martin Ratio Rank: 75

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.

FEUS vs. ITOT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FlexShares ESG & Climate US Large Cap Core Index Fund (FEUS) 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.

	FEUS	ITOT	Difference
Sharpe ratio: Return per unit of total volatility	2.19	2.32	-0.13
Sortino ratio: Return per unit of downside risk	3.01	3.17	-0.16
Omega ratio: Gain probability vs. loss probability	1.39	1.42	-0.03
Calmar ratio: Return relative to maximum drawdown	2.76	3.17	-0.41
Martin ratio: Return relative to average drawdown	11.75	14.57	-2.82
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FEUS vs. ITOT - Sharpe Ratio Comparison

The current FEUS Sharpe Ratio is 2.19, which is comparable to the ITOT Sharpe Ratio of 2.32. The chart below compares the historical Sharpe Ratios of FEUS 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

	FEUS	ITOT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.19	2.32	-0.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.74	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.82	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.74	0.57	+0.17

Drawdowns

FEUS vs. ITOT - Drawdown Comparison

The maximum FEUS drawdown since its inception was -25.31%, smaller than the maximum ITOT drawdown of -55.20%. Use the drawdown chart below to compare losses from any high point for FEUS and ITOT.

Drawdown Indicators

	FEUS	ITOT	Difference
Max Drawdown Largest peak-to-trough decline	-25.31%	-55.20%	+29.89%
Max Drawdown (1Y) Largest decline over 1 year	-9.55%	-8.90%	-0.65%
Max Drawdown (3Y) Largest decline over 3 years	-19.47%	-19.44%	-0.03%
Max Drawdown (5Y) Largest decline over 5 years	—	-25.36%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-35.00%	—
Current Drawdown Current decline from peak	-0.77%	-0.73%	-0.04%
Average Drawdown Average peak-to-trough decline	-6.35%	-6.97%	+0.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.24%	1.94%	+0.30%

Volatility

FEUS vs. ITOT - Volatility Comparison

FlexShares ESG & Climate US Large Cap Core Index Fund (FEUS) and iShares Core S&P Total U.S. Stock Market ETF (ITOT) have volatilities of 3.11% and 2.99%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FEUS	ITOT	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.11%	2.99%	+0.12%
Volatility (6M) Calculated over the trailing 6-month period	9.16%	9.13%	+0.03%
Volatility (1Y) Calculated over the trailing 1-year period	12.05%	12.20%	-0.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.01%	17.36%	-0.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.01%	18.26%	-1.25%

FEUS vs. ITOT - Expense Ratio Comparison

FEUS has a 0.09% 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

FEUS vs. ITOT - Dividend Comparison

FEUS's dividend yield for the trailing twelve months is around 0.98%, which matches ITOT's 0.98% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FEUS FlexShares ESG & Climate US Large Cap Core Index Fund	0.98%	1.06%	1.15%	1.41%	1.48%	0.36%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
ITOT iShares Core S&P Total U.S. Stock Market ETF	0.98%	1.11%	1.23%	1.47%	1.66%	1.18%	1.41%	1.88%	2.14%	1.69%	1.83%	2.01%

Frequently Asked Questions

Can I hold both FEUS and ITOT in my portfolio?

With a correlation of 0.96, FEUS and ITOT move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, FEUS or ITOT?

FEUS has higher volatility (3.11%) compared to ITOT (2.99%). In terms of maximum drawdown, FEUS dropped -25.31% vs ITOT's -55.20%.

Which ETF is better, FEUS or ITOT?

On 3-year performance, ITOT leads with 22.09% vs 20.38% for FEUS. On fees, ITOT is cheaper at 0.03% per year. On volatility, ITOT has been the lower-risk option at 2.99%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FEUS or ITOT?

Over the 3-year period, ITOT has performed better with a 22.09% return vs 20.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FEUS or ITOT?

ITOT is cheaper with a 0.03% expense ratio, compared with 0.09% for FEUS.

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

FEUS and ITOT have nearly identical dividend yields, around 0.98%.

What is the main difference between FEUS and ITOT?

FEUS tracks Northern Trust ESG & Climate US Large Cap Core Index - Benchmark TR Gross, while ITOT tracks S&P Total Market Index. They also come from different issuers: FlexShares and iShares. Their fees differ too: 0.09% for FEUS and 0.03% for ITOT.

Which has better risk-adjusted returns?

ITOT currently has the higher Sharpe Ratio (2.32 vs 2.19), 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.