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Smart Investors Daily
AL

NASDAQ · ALDX

Aldeyra Therapeutics, Inc.

Healthcare · Biotechnology

$1.34

Down-$0.12 (-8.22%)

Updated Sep 12, 2026, 3:04 AM

SID Score

4.4/10

Composite research score

Smart Money

Institutional and insider signal

Market cap
328.49M
P/E ratio
-7.6
Dividend yield
0.00%
52-week range
$1.07 – $5.60
Volume
1.57M
Avg. volume
1.07M

Price performance

ALDX price history

1M range · 20 trading sessions · Daily adjusted prices

ALDX closed at $1.34 after 20 trading sessions, down 14.10% for the selected period.

Last close
$1.34
Period change
-14.10%
Period low
$1.34
Period high
$1.58
Daily close
View OHLC price history
ALDX OHLC price history, latest 40 sessions
DateOpenHighLowCloseVolume
Sep 11, 2026$1.48$1.48$1.33$1.341.57M
Sep 10, 2026$1.48$1.505$1.46$1.46552.54K
Sep 9, 2026$1.53$1.535$1.495$1.50544.21K
Sep 8, 2026$1.47$1.55$1.47$1.54721.82K
Sep 4, 2026$1.47$1.49$1.46$1.48486.18K
Sep 3, 2026$1.48$1.5111$1.46$1.48568.93K
Sep 2, 2026$1.51$1.54$1.46$1.49498.45K
Sep 1, 2026$1.46$1.50$1.455$1.49462.87K
Aug 31, 2026$1.51$1.51$1.465$1.48495.39K
Aug 28, 2026$1.52$1.56$1.48$1.485547.98K
Aug 27, 2026$1.57$1.581$1.525$1.54277.45K
Aug 26, 2026$1.54$1.575$1.52$1.56478.95K
Aug 25, 2026$1.52$1.56$1.50$1.55447.17K
Aug 24, 2026$1.53$1.545$1.4601$1.52531.99K
Aug 21, 2026$1.50$1.595$1.475$1.521.1M
Aug 20, 2026$1.57$1.575$1.495$1.50942.95K
Aug 19, 2026$1.59$1.60$1.54$1.58982.2K
Aug 18, 2026$1.54$1.595$1.505$1.55703.03K
Aug 17, 2026$1.55$1.58$1.525$1.56789.81K
Aug 14, 2026$1.49$1.57$1.445$1.56830.98K

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