ALDX vs SPY

Comparison between Aldeyra Therapeutics Inc (ALDX, Company) and SPDR S&P 500 ETF Trust (SPY, ETF).

5-Year PerformanceSPY has outperformed ALDX, delivering a return of +13.3% compared to -33.6%

ALDX vs SPY - Performance Comparison

Log

Key Characteristics

Financial metrics and valuation ratios

Metric	ALDX(COMPANY)	SPY(ETF)
Market Cap / Net Assets	$103M	$735B
Expense Ratio	N/A	0.09%
Max Drawdown	91.65%	56.47%
Sharpe Ratio	0.48	1.88
5Y Beta	1.32	1.00
Industry	Biotechnology	N/A
P/E Ratio	-3.76	28.99
Forward P/E	N/A	22.37
PEG Ratio	0.00	N/A
5Y Dividends CAGR	N/A	5.43%
5Y EPS CAGR	-15.26%	26.05%
Debt to Equity	36.29%	32.40%
Free Cash Flow Yield	-25.19%	N/A
P/S Ratio	N/A	3.74
P/B Ratio	2.42	5.61

Market Cap / Net Assets

ALDX

$103M

Winner

SPY

$735B

Expense Ratio

ALDX

N/A

SPY

0.09%

Max Drawdown

ALDX

91.65%

Winner

SPY

56.47%

Sharpe Ratio

ALDX

0.48

Winner

SPY

1.88

5Y Beta

ALDX

1.32

Winner

SPY

1.00

Industry

ALDX

Biotechnology

SPY

N/A

P/E Ratio

Winner

ALDX

-3.76

SPY

28.99

Forward P/E

ALDX

N/A

SPY

22.37

PEG Ratio

ALDX

0.00

SPY

N/A

5Y Dividends CAGR

ALDX

N/A

SPY

5.43%

5Y EPS CAGR

ALDX

-15.26%

Winner

SPY

26.05%

Debt to Equity

ALDX

36.29%

Winner

SPY

32.40%

Free Cash Flow Yield

ALDX

-25.19%

SPY

N/A

P/S Ratio

ALDX

N/A

SPY

3.74

P/B Ratio

Winner

ALDX

2.42

SPY

5.61

ALDX vs SPY - Historical Returns

Returns include dividend reinvestment.

Period	ALDX	SPY
1 month	-5.23%	+1.90%
3 months	-64.95%	+8.55%
6 months	-65.32%	+8.18%
1 year	-33.47%	+25.79%
5 years(CAGR)	-33.60%	+13.32%
10 years(CAGR)	-11.62%	+15.19%
Max(CAGR)	-11.56%	+8.47%

ALDX

-5.23%

Winner

SPY

+1.90%

ALDX

-64.95%

Winner

SPY

+8.55%

ALDX

-65.32%

Winner

SPY

+8.18%

ALDX

-33.47%

Winner

SPY

+25.79%

5Y(CAGR)

ALDX

-33.60%

Winner

SPY

+13.32%

10Y(CAGR)

ALDX

-11.62%

Winner

SPY

+15.19%

Max(CAGR)

ALDX

-11.56%

Winner

SPY

+8.47%

ALDX vs SPY - Annual Returns (1999 - 2026)

Returns include dividend reinvestment.

Year	ALDX	SPY
2026	-65.10%	+8.26%
2025	-0.77%	+18.00%
2024	+40.96%	+25.59%
2023	-49.57%	+26.72%
2022	+63.00%	-18.64%
2021	-38.74%	+30.52%
2020	+15.10%	+17.28%
2019	-31.73%	+31.09%
2018	+18.57%	-5.24%
2017	+33.33%	+20.78%
2016	-19.91%	+13.59%
2015	-7.12%	+1.31%
2014	+0.28%	+14.56%
2013	N/A	+29.00%
2012	N/A	+14.17%
2011	N/A	+0.85%
2010	N/A	+13.14%
2009	N/A	+22.67%
2008	N/A	-36.25%
2007	N/A	+5.32%
2006	N/A	+13.85%
2005	N/A	+5.32%
2004	N/A	+10.75%
2003	N/A	+24.18%
2002	N/A	-22.42%
2001	N/A	-10.13%
2000	N/A	-8.84%
1999	N/A	+8.61%

ALDX vs SPY 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 SPY was -55.20%, occurring on Mar 9, 2009. Recovery took 1224 trading sessions.

The current ALDX drawdown is -89.02%. The current SPY drawdown is -2.90%.

Rank	ALDX	SPY
#1	-91.65% Apr 27, 2021 - Mar 17, 2026	-55.20% Oct 9, 2007 - Aug 16, 2012
#2	-88.71% Sep 27, 2018 - Feb 16, 2021	-47.50% Mar 24, 2000 - Oct 26, 2006
#3	-70.91% Jan 30, 2015 - Sep 26, 2018	-33.70% Feb 19, 2020 - Aug 10, 2020
#4	-56.32% Jun 19, 2014 - Oct 21, 2014	-24.50% Jan 3, 2022 - Dec 13, 2023
#5	-31.86% Oct 29, 2014 - Jan 16, 2015	-19.34% Sep 20, 2018 - Apr 12, 2019
#6	-27.60% Feb 16, 2021 - Apr 27, 2021	-18.76% Feb 19, 2025 - Jun 26, 2025
#7	-18.15% May 15, 2014 - Jun 19, 2014	-13.02% Jul 20, 2015 - Apr 18, 2016
#8	-16.81% Jan 20, 2015 - Jan 27, 2015	-10.10% Jan 26, 2018 - Aug 6, 2018
#9	-15.97% May 2, 2014 - May 15, 2014	-9.44% Sep 2, 2020 - Nov 11, 2020
#10	-9.55% Oct 21, 2014 - Oct 27, 2014	-9.30% Jan 19, 2000 - Mar 17, 2000
#11	N/A	-9.05% Jul 19, 2007 - Oct 5, 2007
#12	N/A	-8.88% Jan 27, 2026 - Apr 14, 2026
#13	N/A	-8.41% Jul 16, 2024 - Sep 19, 2024
#14	N/A	-7.35% Sep 14, 2012 - Jan 2, 2013
#15	N/A	-7.27% Sep 18, 2014 - Oct 31, 2014

Correlation

Correlation between ALDX and SPY is -0.33 which considered as a weak negative correlation - the stocks show a slight tendency to move in opposite directions.

-0.33

-101