ALDX logo
ALDX NASDAQ US

Aldeyra Therapeutics, Inc. - Common Stock

Healthcare · Biotechnology Website · IPO May 2014
$1.66
▼ $-0.02 (-1.19%)
Vol 1.8M
3
Quality Score
fail
Mkt Cap
$99.9M
ROE
-63.7%
Beta
1.35
52W
$1–$6

Wall Street Consensus

12 analysts · Apr 2026
5
Strong Buy
5
Buy
2
Hold
0
Sell
0
Strong Sell
83.3%
Buy Rating

Price Chart

Earnings

Beat rate: 66.7%
Next Report May 12, 2026
EPS Estimate: $-0.09
Quarter EPS Est EPS Act Surprise
Mar 2026 $-0.09 $-0.10 $-0.01
Dec 2025 $-0.17 $-0.13 +$0.04
Sep 2025 $-0.25 $-0.16 +$0.09
Jun 2025 $-0.25 $-0.16 +$0.09

Quarterly Revenue & Earnings

Quarter 2024-0… 2024-1… 2025-0… 2025-0… 2025-0… 2025-1…
Revenue
Net Income -$15.8M -$9.9M -$9.8M -$7.7M -$6.5M

Fundamentals Trend

Metric 2025-12-03 2026-01-02 2026-04-02 2026-04-03 2026-04-04 2026-04-05
ROE (TTM) -72.2% -72.2% -63.7% -63.7% -63.7% -63.7%
P/E (TTM)
Net Margin
Gross Margin
D/E Ratio 30.86 30.86
Current Ratio 2.72 2.72 2.58 2.58 2.58 2.58

Key Ratios

ROA (TTM)
-41.3%
P/B
7.0
EPS (TTM)
$-0.56
CF/Share
$-0.77
52W High
$6.18
52W Low
$1.07
$1.07 52-Week Range $6.18

Financial Health

Free Cash Flow
-$5.3M
Net Debt
-$54.5M
Cash
$70.0M
Total Debt
$15.5M
As of Dec 31, 2025

How does ALDX compare to Biotechnology peers?

Peer group: Micro-cap Biotechnology (All) · 528 companies

ALDX AAPG ABEO ABOS ABP

ALDX valuation vs Biotechnology peers

P/E ratio
0% below peers (18.8)
vs Peers
vs Industry
Undervalued
P/S ratio
0% below peers (12.9)
vs Peers
vs Industry
Overvalued
P/B ratio
7.0
186% above peers (2.5)
vs Peers
vs Industry
Overvalued
Div yield
0% below peers (0.0%)
vs Peers
vs Industry
Low yield

ALDX profitability vs Biotechnology peers

ROE
-63.8%
5% above peers (-67.3%)
vs Peers
vs Industry
In line
Net margin
0% below peers (-286.8%)
vs Peers
vs Industry
Top tier
Gross margin
0% below peers (78.6%)
vs Peers
vs Industry
In line
ROA
-41.3%
12% above peers (-46.7%)
vs Peers
vs Industry
In line

ALDX financial health vs Biotechnology peers

D/E ratio
0% below peers (0.0)
vs Peers
vs Industry
High debt
Current ratio
2.6
42% below peers (4.4)
vs Peers
vs Industry
Low liquidity
Beta
1.4
40% above peers (1.0)
vs Peers
vs Industry
More volatile

ALDX fundamentals radar

ALDX Peer median Industry

ALDX profitability vs leverage

Bubble size = market cap · X = net margin · Y = D/E ratio

ALDX vs peers: key metrics

Post-Earnings Returns

Quarter Beat? EPS Surprise T+1 T+5
Mar 2026 $-0.01

Insider Activity

Neutral
Buys
0
Sells
0
DOUGLAS RICHARD H
Director · Mar 19
70000 shs
ALFIERI MICHAEL L
Chief Financial Officer · Mar 18
5000 shs
Last 90 days

Top Holders

Top 5: 31.67%
Knoll Capital Management, L…
9.10%
$9.7M
Perceptive Advisors Llc
6.95%
$7.4M
Blackrock Inc.
6.40%
$6.8M
Vanguard Group Inc
6.15%
$6.5M
Kingdon Capital Management …
3.07%
$3.3M
As of Dec 31, 2025

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