ALDX vs COYA

Comparison between Aldeyra Therapeutics Inc (ALDX, Company) and Coya Therapeutics Inc (COYA, Company).

Both ALDX and COYA are from the Healthcare sector.

ALDX vs COYA - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	ALDX(COMPANY)	COYA(COMPANY)
Market Cap	$103M	$103M
Max Drawdown	91.65%	62.90%
Sharpe Ratio	-0.36	-0.12
5Y Beta	1.38	1.07
Industry	Biotechnology	Biotechnology
P/E Ratio	-3.74	-4.08
PEG Ratio	0.00	-8.44
5Y EPS CAGR	-15.26%	N/A
Debt to Equity	36.29%	0.00%
Free Cash Flow Yield	-25.34%	-13.77%
P/S Ratio	N/A	12.91
P/B Ratio	2.51	2.18

Market Cap

Winner

ALDX

$103M

COYA

$103M

Max Drawdown

ALDX

91.65%

Winner

COYA

62.90%

Sharpe Ratio

ALDX

-0.36

Winner

COYA

-0.12

5Y Beta

ALDX

1.38

Winner

COYA

1.07

Industry

ALDX

Biotechnology

COYA

Biotechnology

P/E Ratio

ALDX

-3.74

Winner

COYA

-4.08

PEG Ratio

ALDX

0.00

Winner

COYA

-8.44

5Y EPS CAGR

ALDX

-15.26%

COYA

N/A

Debt to Equity

ALDX

36.29%

Winner

COYA

0.00%

Free Cash Flow Yield

ALDX

-25.34%

Winner

COYA

-13.77%

P/S Ratio

ALDX

N/A

COYA

12.91

P/B Ratio

ALDX

2.51

Winner

COYA

2.18

ALDX vs COYA - Historical Returns

Returns include dividend reinvestment.

Period	ALDX	COYA
1 month	-23.27%	-18.74%
3 months	-3.13%	+0.92%
6 months	-70.13%	-7.20%
1 year	-71.97%	-27.84%
5 years(CAGR)	-29.77%	N/A
10 years(CAGR)	-12.41%	N/A
Max(CAGR)	-11.81%	-1.18%

ALDX

-23.27%

Winner

COYA

-18.74%

ALDX

-3.13%

Winner

COYA

+0.92%

ALDX

-70.13%

Winner

COYA

-7.20%

ALDX

-71.97%

Winner

COYA

-27.84%

5Y(CAGR)

ALDX

-29.77%

COYA

N/A

10Y(CAGR)

ALDX

-12.41%

COYA

N/A

Max(CAGR)

ALDX

-11.81%

Winner

COYA

-1.18%

ALDX vs COYA - Annual Returns (2014 - 2026)

Returns include dividend reinvestment.

Year	ALDX	COYA
2026	-66.81%	-22.48%
2025	-0.77%	+1.58%
2024	+40.96%	-17.67%
2023	-49.57%	+59.35%
2022	+63.00%	+3.68%
2021	-38.74%	N/A
2020	+15.10%	N/A
2019	-31.73%	N/A
2018	+18.57%	N/A
2017	+33.33%	N/A
2016	-19.91%	N/A
2015	-7.12%	N/A
2014	+0.28%	N/A

ALDX vs COYA Drawdown Comparison

The maximum drawdown for ALDX was -91.65%, occurring on Mar 17, 2026. This drawdown has not yet recovered.

The maximum drawdown for COYA was -62.90%, occurring on Mar 30, 2026. This drawdown has not yet recovered.

The current ALDX drawdown is -89.56%. The current COYA drawdown is -57.02%.

Rank	ALDX	COYA
#1	-91.65% Apr 27, 2021 - Mar 17, 2026	-62.90% Oct 28, 2024 - Mar 30, 2026
#2	-88.71% Sep 27, 2018 - Feb 16, 2021	-52.47% Mar 15, 2024 - Oct 28, 2024
#3	-70.91% Jan 30, 2015 - Sep 26, 2018	-43.40% May 16, 2023 - Dec 1, 2023
#4	-56.32% Jun 19, 2014 - Oct 21, 2014	-26.35% Dec 28, 2023 - Feb 14, 2024
#5	-31.86% Oct 29, 2014 - Jan 16, 2015	-22.62% Jan 10, 2023 - May 4, 2023
#6	-27.60% Feb 16, 2021 - Apr 27, 2021	-10.40% Mar 4, 2024 - Mar 15, 2024
#7	-18.15% May 15, 2014 - Jun 19, 2014	-8.47% Dec 19, 2023 - Dec 27, 2023
#8	-16.81% Jan 20, 2015 - Jan 27, 2015	-7.14% Dec 5, 2023 - Dec 19, 2023
#9	-15.97% May 2, 2014 - May 15, 2014	-5.86% Feb 28, 2024 - Mar 1, 2024
#10	-9.55% Oct 21, 2014 - Oct 27, 2014	-3.74% May 10, 2023 - May 16, 2023
#11	N/A	-3.39% Feb 23, 2024 - Feb 27, 2024
#12	N/A	-2.49% Dec 30, 2022 - Jan 10, 2023
#13	N/A	-1.70% Feb 15, 2024 - Feb 20, 2024
#14	N/A	-0.92% Feb 21, 2024 - Feb 23, 2024
#15	N/A	-0.19% May 8, 2023 - May 10, 2023

Correlation

Correlation between ALDX and COYA is -0.31 which considered as a weak negative correlation - the stocks show a slight tendency to move in opposite directions.

-0.31

-101