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REM vs. USO
Performance
Return for Risk
Drawdowns
Volatility
Dividends

REM vs. USO

Last updated Jun 4, 2026

REM (iShares Mortgage Real Estate ETF) and USO (United States Oil Fund LP) are both exchange-traded funds - REM is a REIT fund tracking the FTSE NAREIT All Mortgage Capped Index, while USO is a Oil & Gas fund tracking the Front Month Light Sweet Crude Oil. Both are passively managed. Over the past 10 years, REM returned 2.55%/yr vs 4.07%/yr for USO. At a 0.18 correlation, their price movements are largely independent. REM charges 0.48%/yr vs 0.86%/yr for USO.

Performance

REM vs. USO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Mortgage Real Estate ETF (REM) and United States Oil Fund LP (USO). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, REM achieves a -2.10% return, which is significantly lower than USO's 103.67% return. Over the past 10 years, REM has underperformed USO with an annualized return of 2.55%, while USO has yielded a comparatively higher 4.07% annualized return.

REM

1D
-1.24%
1M
-4.86%
YTD
-2.10%
6M
-2.10%
1Y
11.53%
3Y*
8.00%
5Y*
-2.48%
10Y*
2.55%

USO

1D
2.62%
1M
-4.57%
YTD
103.67%
6M
99.35%
1Y
101.55%
3Y*
29.98%
5Y*
24.41%
10Y*
4.07%
*Multi-year figures are annualized to reflect compound growth (CAGR)

REM vs. USO - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
REM
iShares Mortgage Real Estate ETF		-2.10%13.30%-1.00%14.43%-27.56%16.14%-19.99%21.34%-3.09%18.43%
USO
United States Oil Fund LP		103.67%-8.46%13.35%-4.94%28.97%64.68%-67.79%32.61%-19.57%2.47%

Correlation

The correlation between REM and USO is -0.24, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

-0.24

Correlation (3Y)
Calculated over the trailing 3-year period

-0.04

Correlation (5Y)
Calculated over the trailing 5-year period

0.09

Correlation (10Y)
Calculated over the trailing 10-year period

0.13

Correlation (All Time)
Calculated using the full available price history since May 7, 2007

0.18

The correlation between REM and USO shifts across timeframes, from -0.24 (1 year) to 0.18 (all time), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

iShares Mortgage Real Estate ETF

United States Oil Fund LP

Often compared with REM:
REM vs. MORTREM vs. VNQREM vs. REETREM vs. IYRREM vs. NLYREM vs. OREM vs. QQQ
Often compared with USO:
USO vs. XLEUSO vs. BNOUSO vs. UCOUSO vs. USLUSO vs. OILKUSO vs. DBOUSO vs. WTI

Return for Risk

REM vs. USO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
REM
REM Risk / Return Rank: 2020
Overall Rank
REM Sharpe Ratio Rank: 2020
Sharpe Ratio Rank
REM Sortino Ratio Rank: 2020
Sortino Ratio Rank
REM Omega Ratio Rank: 1919
Omega Ratio Rank
REM Calmar Ratio Rank: 1919
Calmar Ratio Rank
REM Martin Ratio Rank: 2020
Martin Ratio Rank
USO
USO Risk / Return Rank: 6666
Overall Rank
USO Sharpe Ratio Rank: 6969
Sharpe Ratio Rank
USO Sortino Ratio Rank: 6060
Sortino Ratio Rank
USO Omega Ratio Rank: 6161
Omega Ratio Rank
USO Calmar Ratio Rank: 8787
Calmar Ratio Rank
USO Martin Ratio Rank: 5454
Martin Ratio Rank
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.

REM vs. USO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Mortgage Real Estate ETF (REM) and United States Oil Fund LP (USO). 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.

REMUSODifference
Sharpe ratioReturn per unit of total volatility
0.69
2.31

-1.62

Sortino ratioReturn per unit of downside risk
1.04
2.89

-1.85

Omega ratioGain probability vs. loss probability

1.13

1.38

-0.26

Calmar ratioReturn relative to maximum drawdown

0.81

5.01

-4.19

Martin ratioReturn relative to average drawdown

2.33

9.42

-7.08

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

REM vs. USO - Sharpe Ratio Comparison

The current REM Sharpe Ratio is 0.69, which is lower than the USO Sharpe Ratio of 2.31. The chart below compares the historical Sharpe Ratios of REM and USO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Sharpe Ratios by Period

REMUSODifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.69

2.31

-1.62

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.11

0.68

-0.79

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.09

0.10

-0.01

Sharpe Ratio (All Time)

Calculated using the full available price history

-0.05

-0.18

+0.13

Drawdowns

REM vs. USO - Drawdown Comparison

The maximum REM drawdown since its inception was -74.73%, smaller than the maximum USO drawdown of -98.19%. Use the drawdown chart below to compare losses from any high point for REM and USO.

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Drawdown Indicators

REMUSODifference

Max Drawdown

Largest peak-to-trough decline

-74.73%

-98.19%

+23.46%

Max Drawdown (1Y)

Largest decline over 1 year

-14.25%

-20.39%

+6.14%

Max Drawdown (3Y)

Largest decline over 3 years

-21.91%

-26.05%

+4.14%

Max Drawdown (5Y)

Largest decline over 5 years

-43.31%

-36.23%

-7.08%

Max Drawdown (10Y)

Largest decline over 10 years

-68.52%

-86.75%

+18.23%

Current Drawdown

Current decline from peak

-23.85%

-85.01%

+61.16%

Average Drawdown

Average peak-to-trough decline

-38.35%

-75.30%

+36.95%

Ulcer Index

Depth and duration of drawdowns from previous peaks

4.95%

10.82%

-5.87%

Volatility

REM vs. USO - Volatility Comparison

The current volatility for iShares Mortgage Real Estate ETF (REM) is 3.81%, while United States Oil Fund LP (USO) has a volatility of 14.87%. This indicates that REM experiences smaller price fluctuations and is considered to be less risky than USO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

REMUSODifference

Volatility (1M)

Calculated over the trailing 1-month period

3.81%

14.87%

-11.06%

Volatility (6M)

Calculated over the trailing 6-month period

13.01%

38.23%

-25.22%

Volatility (1Y)

Calculated over the trailing 1-year period

16.85%

44.20%

-27.35%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

23.57%

36.06%

-12.49%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

28.27%

39.00%

-10.73%

REM vs. USO - Expense Ratio Comparison

REM has a 0.48% expense ratio, which is lower than USO's 0.86% expense ratio.

Dividends

REM vs. USO - Dividend Comparison

REM's dividend yield for the trailing twelve months is around 9.19%, while USO has not paid dividends to shareholders.

PositionTTM20252024202320222021202020192018201720162015
REM
iShares Mortgage Real Estate ETF		9.19%8.70%9.61%9.46%11.13%7.29%7.72%8.16%10.00%9.97%10.03%11.99%
USO
United States Oil Fund LP		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%

Frequently Asked Questions

REM and USO have a correlation of -0.24, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

USO has higher volatility (14.87%) compared to REM (3.81%). In terms of maximum drawdown, REM dropped -74.73% vs USO's -98.19%.

On 10-year performance, USO leads with 4.07% vs 2.55% for REM. On fees, REM is cheaper at 0.48% per year. On volatility, REM has been the lower-risk option at 3.81%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, USO has performed better with a 4.07% return vs 2.55%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

REM is cheaper with a 0.48% expense ratio, compared with 0.86% for USO.

REM has the higher dividend yield at 9.19%, compared with 0.00% for USO.

REM is categorized as REIT, while USO is Oil & Gas. REM tracks FTSE NAREIT All Mortgage Capped Index, while USO tracks Front Month Light Sweet Crude Oil. They also come from different issuers: iShares and USCF. Their fees differ too: 0.48% for REM and 0.86% for USO.

USO currently has the higher Sharpe Ratio (2.31 vs 0.69), 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.

Portfolio Optimizer

Find the right allocation for REM and USO

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