MACK vs AMWL

Comparison between Merrimack Pharmaceuticals Inc (MACK, Company) and American Well Corporation - Class A (AMWL, Company).

5-Year PerformanceMACK has outperformed AMWL, delivering a return of +54.2% compared to -43.4%

MACK vs AMWL - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	MACK(COMPANY)	AMWL(COMPANY)
Market Cap	$219M	$218M
Max Drawdown	98.48%	99.56%
Sharpe Ratio	1.14	1.08
5Y Beta	N/A	1.24
Industry	N/A	Health Information Services
P/E Ratio	1.09	-2.72
Debt to Equity	0.00%	0.00%
Free Cash Flow Yield	-0.76%	-12.12%
P/S Ratio	4.80	0.93
P/B Ratio	0.99	0.79

Market Cap

Winner

MACK

$219M

AMWL

$218M

Max Drawdown

Winner

MACK

98.48%

AMWL

99.56%

Sharpe Ratio

Winner

MACK

1.14

AMWL

1.08

5Y Beta

MACK

N/A

AMWL

1.24

Industry

MACK

N/A

AMWL

Health Information Services

P/E Ratio

MACK

1.09

Winner

AMWL

-2.72

Debt to Equity

MACK

0.00%

AMWL

0.00%

Free Cash Flow Yield

Winner

MACK

-0.76%

AMWL

-12.12%

P/S Ratio

MACK

4.80

Winner

AMWL

0.93

P/B Ratio

MACK

0.99

Winner

AMWL

0.79

MACK vs AMWL - Historical Returns

Returns include dividend reinvestment.

Period	MACK	AMWL
1 month	+105.09%	+13.81%
3 months	+105.65%	+58.81%
6 months	+136.54%	+189.38%
1 year	+141.84%	+77.48%
5 years(CAGR)	+54.25%	-43.37%
10 years(CAGR)	-0.15%	N/A
Max(CAGR)	+2.29%	-45.73%

Winner

MACK

+105.09%

AMWL

+13.81%

Winner

MACK

+105.65%

AMWL

+58.81%

MACK

+136.54%

Winner

AMWL

+189.38%

Winner

MACK

+141.84%

AMWL

+77.48%

5Y(CAGR)

Winner

MACK

+54.25%

AMWL

-43.37%

10Y(CAGR)

MACK

-0.15%

AMWL

N/A

Max(CAGR)

Winner

MACK

+2.29%

AMWL

-45.73%

MACK vs AMWL - Annual Returns (2012 - 2026)

Returns include dividend reinvestment.

Year	MACK	AMWL
2026	N/A	+158.35%
2025	N/A	-30.26%
2024	+127.12%	-75.00%
2023	+15.11%	-47.16%
2022	+188.66%	-54.28%
2021	-43.25%	-76.36%
2020	+115.99%	+9.80%
2019	+41.31%	N/A
2018	-63.76%	N/A
2017	-62.97%	N/A
2016	-47.29%	N/A
2015	-30.88%	N/A
2014	+102.15%	N/A
2013	-14.43%	N/A
2012	+0.83%	N/A

MACK vs AMWL Drawdown Comparison

The maximum drawdown for MACK was -96.86%, occurring on Mar 20, 2020. This drawdown has not yet recovered.

The maximum drawdown for AMWL was -99.56%, occurring on Nov 20, 2025. This drawdown has not yet recovered.

The current MACK drawdown is -41.79%. The current AMWL drawdown is -98.54%.

Rank	MACK	AMWL
#1	-96.86% Apr 23, 2015 - Mar 20, 2020	-99.56% Jan 27, 2021 - Nov 20, 2025
#2	-81.19% Sep 24, 2012 - Dec 19, 2014	-44.09% Oct 7, 2020 - Jan 27, 2021
#3	-34.60% Apr 19, 2012 - Jul 25, 2012	-4.28% Sep 30, 2020 - Oct 5, 2020
#4	-25.91% Jan 8, 2015 - Mar 5, 2015	-2.74% Sep 23, 2020 - Sep 30, 2020
#5	-16.57% Jul 25, 2012 - Sep 19, 2012	-1.17% Sep 17, 2020 - Sep 22, 2020
#6	-10.82% Mar 5, 2015 - Apr 13, 2015	N/A
#7	-4.44% Dec 19, 2014 - Dec 26, 2014	N/A
#8	-4.36% Apr 16, 2015 - Apr 22, 2015	N/A
#9	-3.07% Mar 30, 2012 - Apr 9, 2012	N/A
#10	-2.66% Jan 5, 2015 - Jan 8, 2015	N/A
#11	-1.16% Dec 29, 2014 - Dec 31, 2014	N/A
#12	-0.86% Apr 12, 2012 - Apr 16, 2012	N/A
#13	-0.70% Apr 13, 2015 - Apr 15, 2015	N/A

Correlation

Correlation between MACK and AMWL is -0.47 which considered as a weak negative correlation - the stocks show a slight tendency to move in opposite directions.

-0.47

-101