AMPY vs. AMS

Last updated Jun 3, 2026

AMPY (Amplify Energy Corp.) and AMS (American Shared Hospital Services) are both stocks. AMPY operates in Oil & Gas E&P (Energy), while AMS operates in Medical Care Facilities (Healthcare). Over the past 10 years, AMPY returned 23.17%/yr vs -3.85%/yr for AMS. At a 0.07 correlation, their price movements are largely independent.

Performance

AMPY vs. AMS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amplify Energy Corp. (AMPY) and American Shared Hospital Services (AMS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AMPY achieves a 4.16% return, which is significantly higher than AMS's -36.02% return. Over the past 10 years, AMPY has outperformed AMS with an annualized return of 23.17%, while AMS has yielded a comparatively lower -3.85% annualized return.

AMPY

• 1D: -0.21%
• 1M: -23.35%
• YTD: 4.16%
• 6M: -15.60%
• 1Y: 50.63%
• 3Y*: -12.48%
• 5Y*: 4.17%
• 10Y*: 23.17%

AMS

• 1D: -6.90%
• 1M: -20.59%
• YTD: -36.02%
• 6M: -34.78%
• 1Y: -43.51%
• 3Y*: -22.14%
• 5Y*: -15.21%
• 10Y*: -3.85%

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

AMPY vs. AMS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AMPY Amplify Energy Corp.	4.16%	-23.83%	1.18%	-32.54%	182.64%	137.40%	-77.85%	-5.47%	-54.70%	-20.06%
AMS American Shared Hospital Services	-36.02%	-33.86%	34.07%	-18.79%	23.63%	6.76%	-9.02%	2.52%	-8.46%	-22.39%

Correlation

The correlation between AMPY and AMS 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	0.03
Correlation (5Y) Calculated over the trailing 5-year period	0.11
Correlation (10Y) Calculated over the trailing 10-year period	0.09
Correlation (All Time) Calculated using the full available price history since Apr 23, 2012	0.07

The correlation between AMPY and AMS shifts across timeframes, from -0.06 (1 year) to 0.11 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap AMPY : $195.84M AMS : $9.02M
EPS AMPY : $0.29 AMS : -$0.23
PS Ratio AMPY : 0.84 AMS : 0.32
PB Ratio AMPY : 0.47 AMS : 0.00
Total Revenue (TTM) AMPY : $228.78M AMS : $28.08M
Gross Profit (TTM) AMPY : $131.23M AMS : $5.06M
EBITDA (TTM) AMPY : $84.62M AMS : $4.05B

Return for Risk

AMPY vs. AMS — Risk / Return Rank

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

AMPY

AMPY Risk / Return Rank: 67
AMPY Sharpe Ratio Rank: 65
AMPY Sortino Ratio Rank: 63
AMPY Omega Ratio Rank: 60
AMPY Calmar Ratio Rank: 75
AMPY Martin Ratio Rank: 72

AMS

AMS Risk / Return Rank: 10
AMS Sharpe Ratio Rank: 11
AMS Sortino Ratio Rank: 11
AMS Omega Ratio Rank: 11
AMS Calmar Ratio Rank: 12
AMS Martin Ratio Rank: 6

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.

AMPY vs. AMS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amplify Energy Corp. (AMPY) and American Shared Hospital Services (AMS). 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.

	AMPY	AMS	Difference
Sharpe ratio Return per unit of total volatility	0.76	-0.72	+1.48
Sortino ratio Return per unit of downside risk	1.45	-0.94	+2.39
Omega ratio Gain probability vs. loss probability	1.17	0.87	+0.30
Calmar ratio Return relative to maximum drawdown	2.10	-0.76	+2.86
Martin ratio Return relative to average drawdown	4.40	-1.46	+5.85
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AMPY vs. AMS - Sharpe Ratio Comparison

The current AMPY Sharpe Ratio is 0.76, which is higher than the AMS Sharpe Ratio of -0.72. The chart below compares the historical Sharpe Ratios of AMPY and AMS, 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

	AMPY	AMS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.76	-0.72	+1.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.06	-0.33	+0.39
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.02	-0.06	+0.09
Sharpe Ratio (All Time) Calculated using the full available price history	-0.01	-0.04	+0.03

Drawdowns

AMPY vs. AMS - Drawdown Comparison

The maximum AMPY drawdown since its inception was -97.31%, roughly equal to the maximum AMS drawdown of -98.40%. Use the drawdown chart below to compare losses from any high point for AMPY and AMS.

Drawdown Indicators

	AMPY	AMS	Difference
Max Drawdown Largest peak-to-trough decline	-97.31%	-98.40%	+1.09%
Max Drawdown (1Y) Largest decline over 1 year	-31.37%	-57.57%	+26.20%
Max Drawdown (3Y) Largest decline over 3 years	-71.11%	-64.17%	-6.94%
Max Drawdown (5Y) Largest decline over 5 years	-77.47%	-65.04%	-12.43%
Max Drawdown (10Y) Largest decline over 10 years	-97.24%	-73.26%	-23.98%
Current Drawdown Current decline from peak	-74.77%	-85.55%	+10.78%
Average Drawdown Average peak-to-trough decline	-66.40%	-67.44%	+1.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	14.97%	30.23%	-15.26%

Volatility

AMPY vs. AMS - Volatility Comparison

The current volatility for Amplify Energy Corp. (AMPY) is 16.17%, while American Shared Hospital Services (AMS) has a volatility of 29.59%. This indicates that AMPY experiences smaller price fluctuations and is considered to be less risky than AMS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AMPY	AMS	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.17%	29.59%	-13.42%
Volatility (6M) Calculated over the trailing 6-month period	40.61%	48.63%	-8.02%
Volatility (1Y) Calculated over the trailing 1-year period	67.44%	60.82%	+6.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	67.39%	46.18%	+21.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	980.38%	59.93%	+920.45%

Dividends

AMPY vs. AMS - Dividend Comparison

Neither AMPY nor AMS has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
AMPY Amplify Energy Corp.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	7.63%	6.05%
AMS American Shared Hospital Services	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both AMPY and AMS in my portfolio?

AMPY and AMS 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, AMPY or AMS?

AMS has higher volatility (29.59%) compared to AMPY (16.17%). In terms of maximum drawdown, AMPY dropped -97.31% vs AMS's -98.40%.

Which has better risk-adjusted returns?

AMPY currently has the higher Sharpe Ratio (0.76 vs -0.72), 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.