Companies: 10,795·Total market cap: $144.5T
Aldeyra Therapeutics, Inc.

Aldeyra Therapeutics, Inc.

ALDXNASDAQHealthcare● Active
$1.74
+$0.11(+6.75%)
Market Cap$104958658
P/E Ratio
52W High$6.175
52W Low$1.07
Overview

Aldeyra Therapeutics, Inc. (ALDX) PE Ratio — Current & Historical Data

Trailing twelve months (TTM) P/E, forward P/E, PEG, and annual PE history — from market prices and filings.

aldx · pe ratio · data through Dec 31, 2025

Core PE Ratio Metrics

Trailing 12 months · TTM

The price-to-earnings (P/E) ratio for Aldeyra Therapeutics, Inc. (ALDX) measures how much investors pay for each dollar of the company's trailing earnings. ALDX's current PE ratio of N/A is calculated by dividing its stock price of $1.74 by its TTM earnings per share of -$0.45.

N/A
P/E Ratio (TTM)N/A — Company is not profitable (TTM)

Source: FMP · /ratios-ttm · /analyst-estimates · 2025-12-31

Forward P/E
N/A
FY2027 est. EPS $-0.21
Based on 3 analysts
EPS (TTM)
-$0.45
TTM · diluted EPS
PEG Ratio
-0.04
Source: FMP · /ratios-ttm · /ratios annual · /analyst-estimates · /stock-peers · Aldeyra Therapeutics, Inc. SEC 10-K & 10-Q filings · US GAAPUpdated: 2026-06-08

PE Ratio History

2011 – 2025 · Annual
PE Ratio (TTM)
5Y Avg 2.2x
EPS (Annual)

▸ FMP /ratios?period=annual&limit=20 · priceToEarningsRatio + netIncomePerShare (Annual)

PE Ratio vs Peers

Biotechnology · 6 peers · Annual PE
CompanyMarket CapPE (Annual)vs AvgEPS (TTM)
Aldeyra Therapeutics, Inc.
Aldeyra Therapeutics, Inc.You
ALDX
$105MN/A-$0.45
AC Immune S.A.
AC Immune S.A.
ACIU
$223MN/A-$0.70
Amarin Corporation plc
Amarin Corporation plc
AMRN
$294MN/A-$1.87
Alto Neuroscience, Inc.
Alto Neuroscience, Inc.
ANRO
$640MN/A-$2.19
Candel Therapeutics, Inc.
Candel Therapeutics, Inc.
CADL
$467MN/A-$0.72
Cellectis S.A.
Cellectis S.A.
CLLS
$294MN/A-$0.67
Contineum Therapeutics, Inc. Class A Common Stock
Contineum Therapeutics, Inc. Class A Common Stock
CTNM
$431MN/A-$2.17

* N/A — Company is not profitable (TTM) · excluded from industry average · ▸ FMP /stock-peers + /ratios?limit=1 · priceToEarningsRatio

Annual PE Ratio History

Showing 10 of 15 years
Fiscal Year EndPE RatioEPS (TTM)YoY ChangePE vs Max
2025-12-31Latest
FY2025
$-0.56
2024-12-31
FY2024
$-0.94
2023-12-31
FY2023
$-0.64
2022-12-31
FY2022
$-1.06
2021-12-31
FY2021
$-1.07
2020-12-31
FY2020
$-1.11
2019-12-31
FY2019
$-2.24
2018-12-31
FY2018
$-1.79
2017-12-31
FY2017
$-1.40
2016-12-31
FY2016
$-1.65

▸ FMP /ratios?period=annual&limit=20 · priceToEarningsRatio + netIncomePerShare · Zero extra API

About PE Ratio & Methodology

The price-to-earnings (P/E) ratio for Aldeyra Therapeutics, Inc. (ALDX) measures how much investors pay for each dollar of the company's trailing earnings. ALDX's current PE ratio of N/A is calculated by dividing its stock price of $1.74 by its TTM earnings per share of -$0.45.

PE Ratio = Stock Price ÷ EPS (TTM)
= $1.74 ÷ -$0.45 = N/A
TTMTrailing Twelve Months — sum of the most recent 4 quarterly EPS figures
Forward PEStock price ÷ analyst consensus EPS estimate for the next fiscal year
PEGPE ÷ earnings growth rate — values below 1.0 suggest growth may justify the premium
Figures tie to SEC 10-K/10-Q and FMP ratio endpoints where noted.

Frequently asked questions

ALDX pe ratio · 6 questions

ALDX's current PE ratio is N/A as of 2026-06-08, based on a stock price of $1.74 and TTM EPS of -$0.45. Data sourced from Financial Modeling Prep via ALDX's SEC 10-K and 10-Q filings.

ALDX PE ratioWhat is ALDX PE ratioCurrent PE ratio of ALDXALDX PE ratio today

Source: FMP · /ratios-ttm · /ratios annual · /analyst-estimates · /stock-peers · Aldeyra Therapeutics, Inc. SEC 10-K & 10-Q filings · US GAAP · Updated: 2026-06-08