WELL vs. SEM

Last updated Jun 9, 2026

WELL (Welltower Inc.) and SEM (Select Medical Holdings Corporation) are both stocks. WELL operates in REIT - Healthcare Facilities (Real Estate), while SEM operates in Medical Care Facilities (Healthcare). Over the past 10 years, WELL returned 14.83%/yr vs 11.09%/yr for SEM. At a 0.28 correlation, their price movements are largely independent.

Performance

WELL vs. SEM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Welltower Inc. (WELL) and Select Medical Holdings Corporation (SEM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WELL achieves a 8.50% return, which is significantly lower than SEM's 12.48% return. Over the past 10 years, WELL has outperformed SEM with an annualized return of 14.83%, while SEM has yielded a comparatively lower 11.09% annualized return.

WELL

• 1D: -3.35%
• 1M: -6.50%
• YTD: 8.50%
• 6M: 0.26%
• 1Y: 31.48%
• 3Y*: 37.93%
• 5Y*: 23.47%
• 10Y*: 14.83%

SEM

• 1D: 0.18%
• 1M: 1.36%
• YTD: 12.48%
• 6M: 12.02%
• 1Y: 9.24%
• 3Y*: 4.38%
• 5Y*: -3.65%
• 10Y*: 11.09%

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

WELL vs. SEM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
WELL Welltower Inc.	8.50%	49.86%	43.07%	41.79%	-21.18%	36.98%	-17.19%	23.04%	15.31%	0.22%
SEM Select Medical Holdings Corporation	12.48%	-19.84%	51.24%	-3.52%	-13.85%	7.41%	18.51%	52.05%	-13.03%	33.21%

Correlation

The correlation between WELL and SEM is 0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.06
Correlation (3Y) Calculated over the trailing 3-year period	0.25
Correlation (5Y) Calculated over the trailing 5-year period	0.32
Correlation (10Y) Calculated over the trailing 10-year period	0.29
Correlation (All Time) Calculated using the full available price history since Sep 28, 2009	0.28

Over the past year, the correlation between WELL and SEM has dropped to 0.06 - well below their long-term average of 0.28, suggesting their price drivers have been diverging.

Fundamentals

EPS WELL : $2.02 SEM : $1.44
PE Ratio WELL : 99.11 SEM : 11.49
PS Ratio WELL : 11.99 SEM : 0.28
Total Revenue (TTM) WELL : $11.63B SEM : $5.52B
Gross Profit (TTM) WELL : $3.25B SEM : $588.00M
EBITDA (TTM) WELL : $3.00B SEM : $442.21M

Return for Risk

WELL vs. SEM — Risk / Return Rank

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

WELL

WELL Risk / Return Rank: 79
WELL Sharpe Ratio Rank: 82
WELL Sortino Ratio Rank: 76
WELL Omega Ratio Rank: 76
WELL Calmar Ratio Rank: 80
WELL Martin Ratio Rank: 80

SEM

SEM Risk / Return Rank: 51
SEM Sharpe Ratio Rank: 53
SEM Sortino Ratio Rank: 46
SEM Omega Ratio Rank: 51
SEM Calmar Ratio Rank: 51
SEM Martin Ratio Rank: 53

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.

WELL vs. SEM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Welltower Inc. (WELL) and Select Medical Holdings Corporation (SEM). 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.

	WELL	SEM	Difference
Sharpe ratio: Return per unit of total volatility	1.48	0.30	+1.18
Sortino ratio: Return per unit of downside risk	2.03	0.62	+1.40
Omega ratio: Gain probability vs. loss probability	1.26	1.11	+0.15
Calmar ratio: Return relative to maximum drawdown	2.51	0.39	+2.12
Martin ratio: Return relative to average drawdown	6.21	0.98	+5.22
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WELL vs. SEM - Sharpe Ratio Comparison

The current WELL Sharpe Ratio is 1.48, which is higher than the SEM Sharpe Ratio of 0.30. The chart below compares the historical Sharpe Ratios of WELL and SEM, 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

	WELL	SEM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.48	0.30	+1.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.99	-0.10	+1.09
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.47	0.26	+0.20
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	0.22	+0.34

Drawdowns

WELL vs. SEM - Drawdown Comparison

The maximum WELL drawdown since its inception was -63.33%, which is greater than SEM's maximum drawdown of -60.26%. Use the drawdown chart below to compare losses from any high point for WELL and SEM.

Drawdown Indicators

	WELL	SEM	Difference
Max Drawdown Largest peak-to-trough decline	-63.33%	-60.26%	-3.07%
Max Drawdown (1Y) Largest decline over 1 year	-12.61%	-24.02%	+11.41%
Max Drawdown (3Y) Largest decline over 3 years	-12.99%	-45.04%	+32.05%
Max Drawdown (5Y) Largest decline over 5 years	-40.78%	-49.09%	+8.31%
Max Drawdown (10Y) Largest decline over 10 years	-63.33%	-60.26%	-3.07%
Current Drawdown Current decline from peak	-9.15%	-22.10%	+12.95%
Average Drawdown Average peak-to-trough decline	-10.32%	-22.66%	+12.34%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.10%	9.40%	-4.30%

Volatility

WELL vs. SEM - Volatility Comparison

Welltower Inc. (WELL) has a higher volatility of 8.63% compared to Select Medical Holdings Corporation (SEM) at 0.69%. This indicates that WELL's price experiences larger fluctuations and is considered to be riskier than SEM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WELL	SEM	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.63%	0.69%	+7.94%
Volatility (6M) Calculated over the trailing 6-month period	17.08%	13.47%	+3.61%
Volatility (1Y) Calculated over the trailing 1-year period	21.48%	31.38%	-9.90%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.76%	37.44%	-13.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.88%	42.30%	-10.42%

Dividends

WELL vs. SEM - Dividend Comparison

WELL's dividend yield for the trailing twelve months is around 1.48%, less than SEM's 1.51% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SEM Select Medical Holdings Corporation	1.51%	1.68%	97.39%	2.13%	2.01%	1.28%	0.00%	0.00%	0.00%	0.00%	0.00%	0.84%
WELL Welltower Inc.	1.48%	1.52%	2.03%	2.71%	3.72%	2.84%	4.18%	4.26%	5.01%	5.46%	5.14%	4.85%

Financials

WELL vs. SEM - Profitability Comparison

The chart below illustrates the profitability comparison between Welltower Inc. and Select Medical Holdings Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

WELL - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Welltower Inc. reported a gross profit of 0.00 and revenue of 3.35B. Therefore, the gross margin over that period was 0.0%.

SEM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Select Medical Holdings Corporation reported a gross profit of 175.47M and revenue of 1.42B. Therefore, the gross margin over that period was 12.3%.

WELL - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Welltower Inc. reported an operating income of 752.32M and revenue of 3.35B, resulting in an operating margin of 22.4%.

SEM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Select Medical Holdings Corporation reported an operating income of 98.42M and revenue of 1.42B, resulting in an operating margin of 6.9%.

WELL - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Welltower Inc. reported a net income of 728.67M and revenue of 3.35B, resulting in a net margin of 21.7%.

SEM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Select Medical Holdings Corporation reported a net income of 44.00M and revenue of 1.42B, resulting in a net margin of 3.1%.

Frequently Asked Questions

Can I hold both WELL and SEM in my portfolio?

WELL and SEM have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WELL or SEM?

WELL has higher volatility (8.63%) compared to SEM (0.69%). In terms of maximum drawdown, WELL dropped -63.33% vs SEM's -60.26%.

Which has better risk-adjusted returns?

WELL currently has the higher Sharpe Ratio (1.48 vs 0.30), 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.