APT vs. SUI

Last updated Apr 1, 2026

Compare and contrast key facts about Alpha Pro Tech, Ltd. (APT) and Sun Communities, Inc. (SUI).

Performance

APT vs. SUI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Alpha Pro Tech, Ltd. (APT) and Sun Communities, Inc. (SUI). The values are adjusted to include any dividend payments, if applicable.

APT vs. SUI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
APT Alpha Pro Tech, Ltd.	-0.00%	-16.07%	-0.00%	31.59%	-32.66%	-46.46%	225.07%	-7.55%	-7.25%	14.29%
SUI Sun Communities, Inc.	2.56%	7.49%	-5.19%	-3.81%	-30.32%	40.79%	3.58%	50.91%	12.89%	24.94%

Fundamentals

EPS APT : $0.50 SUI : $10.95
PE Ratio APT : 8.91 SUI : 11.50
PS Ratio APT : 0.53 SUI : 6.84
Total Revenue (TTM) APT : $59.14M SUI : $2.31B
Gross Profit (TTM) APT : $22.54M SUI : $1.93B
EBITDA (TTM) APT : $5.00M SUI : $508.50M

Returns By Period

Both investments have delivered pretty close results over the past 10 years, with APT having a 9.03% annualized return and SUI not far ahead at 9.07%.

APT

• 1D: -2.63%
• 1M: -14.78%
• YTD: -0.00%
• 6M: -7.21%
• 1Y: -11.20%
• 3Y*: 2.20%
• 5Y*: -14.70%
• 10Y*: 9.03%

SUI

• 1D: 0.70%
• 1M: -6.87%
• YTD: 2.56%
• 6M: -0.66%
• 1Y: 4.63%
• 3Y*: 0.45%
• 5Y*: -0.49%
• 10Y*: 9.07%

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

Return for Risk

APT vs. SUI — Risk / Return Rank

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

APT

APT Risk / Return Rank: 20
APT Sharpe Ratio Rank: 25
APT Sortino Ratio Rank: 23
APT Omega Ratio Rank: 23
APT Calmar Ratio Rank: 20
APT Martin Ratio Rank: 11

SUI

SUI Risk / Return Rank: 47
SUI Sharpe Ratio Rank: 49
SUI Sortino Ratio Rank: 42
SUI Omega Ratio Rank: 41
SUI Calmar Ratio Rank: 51
SUI 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.

APT vs. SUI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Alpha Pro Tech, Ltd. (APT) and Sun Communities, Inc. (SUI). 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.

	APT	SUI	Difference
Sharpe ratio Return per unit of total volatility	-0.37	0.21	-0.57
Sortino ratio Return per unit of downside risk	-0.34	0.46	-0.79
Omega ratio Gain probability vs. loss probability	0.96	1.06	-0.10
Calmar ratio Return relative to maximum drawdown	-0.65	0.34	-0.99
Martin ratio Return relative to average drawdown	-1.45	1.02	-2.47
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

APT vs. SUI - Sharpe Ratio Comparison

The current APT Sharpe Ratio is -0.37, which is lower than the SUI Sharpe Ratio of 0.21. The chart below compares the historical Sharpe Ratios of APT and SUI, 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

	APT	SUI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.37	0.21	-0.57
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.31	-0.02	-0.29
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.13	0.35	-0.23
Sharpe Ratio (All Time) Calculated using the full available price history	0.09	0.46	-0.37

Correlation

The correlation between APT and SUI is 0.07, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

APT vs. SUI - Dividend Comparison

APT has not paid dividends to shareholders, while SUI's dividend yield for the trailing twelve months is around 6.54%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APT Alpha Pro Tech, Ltd.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SUI Sun Communities, Inc.	6.54%	6.50%	3.06%	2.78%	2.46%	1.58%	2.08%	2.00%	2.79%	2.89%	3.39%	3.79%

Drawdowns

APT vs. SUI - Drawdown Comparison

The maximum APT drawdown since its inception was -85.95%, which is greater than SUI's maximum drawdown of -74.04%. Use the drawdown chart below to compare losses from any high point for APT and SUI.

Drawdown Indicators

	APT	SUI	Difference
Max Drawdown Largest peak-to-trough decline	-85.95%	-74.04%	-11.91%
Max Drawdown (1Y) Largest decline over 1 year	-17.91%	-11.88%	-6.03%
Max Drawdown (5Y) Largest decline over 5 years	-69.28%	-48.72%	-20.56%
Max Drawdown (10Y) Largest decline over 10 years	-85.39%	-48.72%	-36.67%
Current Drawdown Current decline from peak	-82.42%	-29.94%	-52.48%
Average Drawdown Average peak-to-trough decline	-64.86%	-11.65%	-53.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.98%	3.99%	+3.99%

Volatility

APT vs. SUI - Volatility Comparison

Alpha Pro Tech, Ltd. (APT) has a higher volatility of 9.81% compared to Sun Communities, Inc. (SUI) at 3.72%. This indicates that APT's price experiences larger fluctuations and is considered to be riskier than SUI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	APT	SUI	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.81%	3.72%	+6.09%
Volatility (6M) Calculated over the trailing 6-month period	22.98%	13.58%	+9.40%
Volatility (1Y) Calculated over the trailing 1-year period	30.71%	22.30%	+8.41%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	47.98%	24.84%	+23.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	70.44%	25.64%	+44.80%

Financials