REM vs. O

Last updated Apr 1, 2026

Compare and contrast key facts about iShares Mortgage Real Estate ETF (REM) and Realty Income Corporation (O).

REM is a passively managed fund by iShares that tracks the performance of the FTSE NAREIT All Mortgage Capped Index. It was launched on May 4, 2007.

Performance

REM vs. O - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Mortgage Real Estate ETF (REM) and Realty Income Corporation (O). The values are adjusted to include any dividend payments, if applicable.

REM vs. O - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
REM iShares Mortgage Real Estate ETF	-2.47%	13.30%	-1.00%	14.43%	-27.56%	16.14%	-19.99%	21.34%	-3.09%	18.43%
O Realty Income Corporation	9.95%	12.20%	-2.11%	-4.55%	-7.38%	23.95%	-11.60%	21.27%	15.94%	3.67%

Returns By Period

In the year-to-date period, REM achieves a -2.47% return, which is significantly lower than O's 9.95% return. Over the past 10 years, REM has underperformed O with an annualized return of 3.27%, while O has yielded a comparatively higher 4.95% annualized return.

REM

• 1D: 2.70%
• 1M: -4.36%
• YTD: -2.47%
• 6M: 2.11%
• 1Y: 4.63%
• 3Y*: 8.89%
• 5Y*: -1.53%
• 10Y*: 3.27%

O

• 1D: 0.49%
• 1M: -8.28%
• YTD: 9.95%
• 6M: 3.87%
• 1Y: 11.95%
• 3Y*: 4.50%
• 5Y*: 4.55%
• 10Y*: 4.95%

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

Return for Risk

REM vs. O — Risk / Return Rank

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

REM

REM Risk / Return Rank: 20
REM Sharpe Ratio Rank: 19
REM Sortino Ratio Rank: 18
REM Omega Ratio Rank: 18
REM Calmar Ratio Rank: 22
REM Martin Ratio Rank: 21

O

O Risk / Return Rank: 65
O Sharpe Ratio Rank: 67
O Sortino Ratio Rank: 58
O Omega Ratio Rank: 56
O Calmar Ratio Rank: 70
O Martin Ratio Rank: 73

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. O - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Mortgage Real Estate ETF (REM) and Realty Income Corporation (O). 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.

	REM	O	Difference
Sharpe ratio Return per unit of total volatility	0.22	0.71	-0.49
Sortino ratio Return per unit of downside risk	0.43	1.05	-0.62
Omega ratio Gain probability vs. loss probability	1.06	1.13	-0.07
Calmar ratio Return relative to maximum drawdown	0.41	1.33	-0.91
Martin ratio Return relative to average drawdown	1.16	3.97	-2.81
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. O - Sharpe Ratio Comparison

The current REM Sharpe Ratio is 0.22, which is lower than the O Sharpe Ratio of 0.71. The chart below compares the historical Sharpe Ratios of REM and O, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	REM	O	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.22	0.71	-0.49
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.07	0.24	-0.31
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.12	0.19	-0.08
Sharpe Ratio (All Time) Calculated using the full available price history	-0.05	0.49	-0.54

Correlation

The correlation between REM and O is 0.53, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

REM vs. O - Dividend Comparison

REM's dividend yield for the trailing twelve months is around 9.22%, more than O's 5.72% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
REM iShares Mortgage Real Estate ETF	9.22%	8.70%	9.61%	9.46%	11.13%	7.29%	7.72%	8.16%	10.00%	9.97%	10.03%	11.99%
O Realty Income Corporation	5.72%	6.19%	5.37%	5.33%	4.68%	3.87%	4.51%	3.69%	4.19%	4.45%	4.18%	4.41%

Drawdowns

REM vs. O - Drawdown Comparison

The maximum REM drawdown since its inception was -74.73%, which is greater than O's maximum drawdown of -48.45%. Use the drawdown chart below to compare losses from any high point for REM and O.

Drawdown Indicators

	REM	O	Difference
Max Drawdown Largest peak-to-trough decline	-74.73%	-48.45%	-26.28%
Max Drawdown (1Y) Largest decline over 1 year	-14.49%	-11.10%	-3.39%
Max Drawdown (5Y) Largest decline over 5 years	-43.31%	-34.48%	-8.83%
Max Drawdown (10Y) Largest decline over 10 years	-68.52%	-48.28%	-20.24%
Current Drawdown Current decline from peak	-24.14%	-9.04%	-15.10%
Average Drawdown Average peak-to-trough decline	-38.51%	-9.22%	-29.29%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.29%	3.71%	+1.58%

Volatility

REM vs. O - Volatility Comparison

iShares Mortgage Real Estate ETF (REM) has a higher volatility of 7.78% compared to Realty Income Corporation (O) at 4.40%. This indicates that REM's price experiences larger fluctuations and is considered to be riskier than O based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	REM	O	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.78%	4.40%	+3.38%
Volatility (6M) Calculated over the trailing 6-month period	12.83%	11.26%	+1.57%
Volatility (1Y) Calculated over the trailing 1-year period	21.07%	16.98%	+4.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.57%	18.92%	+4.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.23%	25.70%	+2.53%