COYA vs ALDX

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

Both COYA and ALDX are from the Healthcare sector.

COYA vs ALDX - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

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

Market Cap

COYA

$103M

Winner

ALDX

$103M

Max Drawdown

Winner

COYA

62.90%

ALDX

91.65%

Sharpe Ratio

Winner

COYA

-0.12

ALDX

-0.36

5Y Beta

Winner

COYA

1.07

ALDX

1.38

Industry

COYA

Biotechnology

ALDX

Biotechnology

P/E Ratio

Winner

COYA

-4.08

ALDX

-3.74

PEG Ratio

Winner

COYA

-8.44

ALDX

0.00

5Y EPS CAGR

COYA

N/A

ALDX

-15.26%

Debt to Equity

Winner

COYA

0.00%

ALDX

36.29%

Free Cash Flow Yield

Winner

COYA

-13.77%

ALDX

-25.34%

P/S Ratio

COYA

12.91

ALDX

N/A

P/B Ratio

Winner

COYA

2.18

ALDX

2.51

COYA vs ALDX - Historical Returns

Returns include dividend reinvestment.

Period	COYA	ALDX
1 month	-20.11%	-20.00%
3 months	-1.62%	-1.94%
6 months	-9.96%	-70.71%
1 year	-36.76%	-72.06%
5 years(CAGR)	N/A	-30.03%
10 years(CAGR)	N/A	-12.39%
Max(CAGR)	-2.01%	-11.94%

COYA

-20.11%

Winner

ALDX

-20.00%

Winner

COYA

-1.62%

ALDX

-1.94%

Winner

COYA

-9.96%

ALDX

-70.71%

Winner

COYA

-36.76%

ALDX

-72.06%

5Y(CAGR)

COYA

N/A

ALDX

-30.03%

10Y(CAGR)

COYA

N/A

ALDX

-12.39%

Max(CAGR)

Winner

COYA

-2.01%

ALDX

-11.94%

COYA vs ALDX - Annual Returns (2014 - 2026)

Returns include dividend reinvestment.

Year	COYA	ALDX
2026	-24.78%	-67.45%
2025	+1.58%	-0.77%
2024	-17.67%	+40.96%
2023	+59.35%	-49.57%
2022	+3.68%	+63.00%
2021	N/A	-38.74%
2020	N/A	+15.10%
2019	N/A	-31.73%
2018	N/A	+18.57%
2017	N/A	+33.33%
2016	N/A	-19.91%
2015	N/A	-7.12%
2014	N/A	+0.28%

COYA vs ALDX Drawdown Comparison

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

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

The current COYA drawdown is -58.29%. The current ALDX drawdown is -89.76%.

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

Correlation

Correlation between COYA and ALDX is -0.30 which considered as a weak negative correlation - the stocks show a slight tendency to move in opposite directions.

-0.30

-101