Aldeyra The (ALDX) Stock Price History
Historical prices from 2014 to 2026
- 1M
- -30.8%
- 3M
- -60.1%
- YTD
- -86.4%
- 1Y
- -86.8%
- 3Y
- -34.5%
- 5Y
- -41.3%
Loading 10-year price history...
ALDX Historical Performance
ALDX Annual Returns
Year-by-year price performance · 2014–2026
- 2014 annual price return
- +0.3%
- 2015 annual price return
- -7.1%
- 2016 annual price return
- -19.9%
- 2017 annual price return
- +33.3%
- 2018 annual price return
- +18.6%
- 2019 annual price return
- -31.7%
- 2020 annual price return
- +15.1%
- 2021 annual price return
- -38.7%
- 2022 annual price return
- +63.0%
- 2023 annual price return
- -49.6%
- 2024 annual price return
- +41.0%
- 2025 annual price return
- -0.8%
- 2026 annual price return
- -80.4%
ALDX Stock Price Trajectory (2014–2026)
As of November 9, 2026, Aldeyra The (ALDX) trades at $0.63, representing a -86.8% return over the past year. The stock has delivered a -93.0% total return over five years (-41.3% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $16.70 on September 26, 2018. From this peak, ALDX has corrected -96.2%, currently trading 71% below its 200-day moving average, suggesting potential weakness.
When compared to Healthcare sector peers OCUL (-38.0% 1Y), KALA (-99.6% 1Y), and HALO (+51.5% 1Y), ALDX has underperformed the peer group average. Compare ALDX vs OCUL →
ALDX Historical Price Data · from 2014
Rows 1–50 of 3,149| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-11-06 | 0.64 | 0.70 | 0.58 | 0.63 | 547K | +2.89% |
| 2026-11-05 | 0.64 | 0.65 | 0.57 | 0.62 | 862K | -4.87% |
| 2026-11-04 | 0.63 | 0.72 | 0.62 | 0.65 | 1.04M | +4.32% |
| 2026-11-03 | 0.58 | 0.63 | 0.55 | 0.62 | 661K | +6.41% |
| 2026-11-02 | 0.56 | 0.60 | 0.53 | 0.58 | 906K | +4.09% |
| 2026-10-30 | 0.67 | 0.68 | 0.55 | 0.56 | 897K | -14.99% |
| 2026-10-29 | 0.67 | 0.72 | 0.66 | 0.66 | 418K | -3.58% |
| 2026-10-28 | 0.64 | 0.69 | 0.63 | 0.68 | 728K | +6.61% |
| 2026-10-27 | 0.63 | 0.67 | 0.62 | 0.64 | 992K | -0.08% |
| 2026-10-26 | 0.66 | 0.67 | 0.63 | 0.64 | 786K | -1.23% |
| 2026-10-23 | 0.63 | 0.65 | 0.60 | 0.65 | 822K | +0.68% |
| 2026-10-22 | 0.67 | 0.73 | 0.63 | 0.65 | 718K | -3.73% |
| 2026-10-21 | 0.74 | 0.75 | 0.66 | 0.67 | 607K | -8.72% |
| 2026-10-20 | 0.65 | 0.75 | 0.65 | 0.73 | 1.65M | +10.40% |
| 2026-10-19 | 0.70 | 0.72 | 0.66 | 0.67 | 862K | -5.00% |
| 2026-10-16 | 0.74 | 0.74 | 0.65 | 0.70 | 1.81M | -5.05% |
| 2026-10-15 | 0.77 | 0.80 | 0.73 | 0.74 | 1.23M | -6.72% |
| 2026-10-14 | 0.88 | 0.90 | 0.79 | 0.79 | 1.58M | -12.16% |
| 2026-10-13 | 0.89 | 0.91 | 0.87 | 0.90 | 1.46M | -0.66% |
| 2026-10-12 | 0.92 | 0.94 | 0.88 | 0.91 | 1.34M | -1.15% |
| 2026-10-09 | 0.94 | 0.97 | 0.92 | 0.92 | 699K | -3.31% |
| 2026-10-08 | 0.96 | 0.97 | 0.91 | 0.95 | 1.18M | -1.14% |
| 2026-10-07 | 0.91 | 0.97 | 0.88 | 0.96 | 1.29M | +4.66% |
| 2026-10-06 | 0.95 | 0.99 | 0.86 | 0.92 | 8.23M | -0.84% |
| 2026-10-05 | 1.18 | 1.19 | 0.90 | 0.92 | 7.03M | -21.05% |
| 2026-10-02 | 1.31 | 1.31 | 1.15 | 1.17 | 2.28M | -9.30% |
| 2026-10-01 | 1.26 | 1.31 | 1.20 | 1.29 | 1.21M | +4.88% |
| 2026-09-30 | 1.34 | 1.35 | 1.22 | 1.23 | 1.65M | -6.82% |
| 2026-09-29 | 1.17 | 1.44 | 1.16 | 1.32 | 5.46M | +13.79% |
| 2026-09-28 | 1.18 | 1.22 | 1.15 | 1.16 | 1.02M | -4.13% |
| 2026-09-25 | 1.23 | 1.28 | 1.20 | 1.21 | 645K | -0.82% |
| 2026-09-24 | 1.35 | 1.35 | 1.22 | 1.22 | 839K | -9.63% |
| 2026-09-23 | 1.40 | 1.40 | 1.33 | 1.35 | 634K | -3.57% |
| 2026-09-22 | 1.37 | 1.40 | 1.35 | 1.40 | 430K | +3.70% |
| 2026-09-21 | 1.37 | 1.39 | 1.32 | 1.35 | 495K | -0.74% |
| 2026-09-18 | 1.40 | 1.40 | 1.35 | 1.36 | 368K | -1.45% |
| 2026-09-17 | 1.39 | 1.44 | 1.37 | 1.38 | 395K | +0.73% |
| 2026-09-16 | 1.38 | 1.40 | 1.36 | 1.37 | 792K | 0.00% |
| 2026-09-15 | 1.45 | 1.45 | 1.35 | 1.37 | 834K | -6.16% |
| 2026-09-14 | 1.35 | 1.49 | 1.35 | 1.46 | 1.17M | +8.96% |
| 2026-09-11 | 1.48 | 1.48 | 1.33 | 1.34 | 1.57M | -8.22% |
| 2026-09-10 | 1.48 | 1.51 | 1.46 | 1.46 | 553K | -2.67% |
| 2026-09-09 | 1.53 | 1.54 | 1.50 | 1.50 | 544K | -2.60% |
| 2026-09-08 | 1.47 | 1.55 | 1.47 | 1.54 | 722K | +4.05% |
| 2026-09-04 | 1.47 | 1.49 | 1.46 | 1.48 | 486K | 0.00% |
| 2026-09-03 | 1.48 | 1.51 | 1.46 | 1.48 | 569K | -0.67% |
| 2026-09-02 | 1.51 | 1.54 | 1.46 | 1.49 | 498K | 0.00% |
| 2026-09-01 | 1.46 | 1.50 | 1.46 | 1.49 | 463K | +0.68% |
| 2026-08-31 | 1.51 | 1.51 | 1.47 | 1.48 | 495K | -0.67% |
| 2026-08-28 | 1.52 | 1.56 | 1.48 | 1.49 | 548K | -3.25% |
ALDX Chart Terminal
Live VCP patterns, Cup & Handle overlays, support/resistance, and AI trade plans.
Live Breakouts Feed
High-probability breakout stocks crossing their pivot across 5 pattern engines.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
Peer Comparison
Compare growth, multiples, and margins vs sector.
ALDX — Frequently Asked Questions
Quick answers to the most common questions about buying ALDX stock.
How has ALDX stock performed recently?
ALDX declined -86.8% over the past year, below its 5-year annualized CAGR of -41.3%. The stock trades below its 200-day moving average, reflecting the downtrend.
What is ALDX's all-time high price?
Aldeyra The reached $16.70 on 2018-09-26. The 52-week high is $5.93. Current 1-year return of -86.8% places the stock further from historical peaks.
Where can I download ALDX historical price data?
This page provides ALDX daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2014-2026, downloadable in CSV format.