Phio Pharmaceuticals Corp. (PHIO) Stock Price History
Historical prices from 2008 to 2026
- 1M
- -19.4%
- 3M
- -24.4%
- YTD
- -26.5%
- 1Y
- -45.9%
- 3Y
- -58.2%
- 5Y
- -66.2%
Loading 10-year price history...
PHIO Historical Performance
PHIO Annual Returns
Year-by-year price performance · 2008–2026
- 2008 annual price return
- -45.3%
- 2009 annual price return
- -23.7%
- 2010 annual price return
- -37.1%
- 2011 annual price return
- -69.2%
- 2012 annual price return
- +4182246.3%
- 2013 annual price return
- +0.0%
- 2014 annual price return
- -5.0%
- 2015 annual price return
- -76.1%
- 2016 annual price return
- -81.2%
- 2017 annual price return
- -22.8%
- 2018 annual price return
- -94.0%
- 2019 annual price return
- -51.1%
- 2020 annual price return
- -74.2%
- 2021 annual price return
- -64.4%
- 2022 annual price return
- -65.9%
- 2023 annual price return
- -83.1%
- 2024 annual price return
- -74.0%
- 2025 annual price return
- -44.7%
- 2026 annual price return
- -10.2%
PHIO Stock Price Trajectory (2008–2026)
As of November 8, 2026, Phio Pharmaceuticals Corp. (PHIO) trades at $0.80, representing a -45.9% return over the past year. The stock has delivered a -99.6% total return over five years (-66.2% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $999,999.00 on March 9, 2015. From this peak, PHIO has corrected -100.0%, currently trading 26% below its 200-day moving average, suggesting potential weakness.
When compared to Healthcare sector peers SRPT (+1.0% 1Y), ARWR (+46.9% 1Y), and ALNY (-64.6% 1Y), PHIO has underperformed the peer group average. Compare PHIO vs SRPT →
PHIO Historical Price Data · from 2008
Rows 1–50 of 4,695| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-11-06 | 0.78 | 0.83 | 0.75 | 0.80 | 76K | +0.16% |
| 2026-11-05 | 0.88 | 0.90 | 0.80 | 0.80 | 127K | -8.04% |
| 2026-11-04 | 0.88 | 0.91 | 0.85 | 0.87 | 67K | -3.67% |
| 2026-11-03 | 0.87 | 0.92 | 0.87 | 0.90 | 34K | +2.61% |
| 2026-11-02 | 0.87 | 0.90 | 0.86 | 0.88 | 30K | +2.33% |
| 2026-10-30 | 0.86 | 0.88 | 0.85 | 0.86 | 67K | -0.30% |
| 2026-10-29 | 0.88 | 0.91 | 0.86 | 0.86 | 27K | -5.91% |
| 2026-10-28 | 0.89 | 0.92 | 0.85 | 0.92 | 13K | +2.87% |
| 2026-10-27 | 0.87 | 0.92 | 0.85 | 0.89 | 71K | +4.82% |
| 2026-10-26 | 0.88 | 0.90 | 0.85 | 0.85 | 43K | -0.26% |
| 2026-10-23 | 0.86 | 0.90 | 0.85 | 0.85 | 31K | -2.30% |
| 2026-10-22 | 0.90 | 0.92 | 0.87 | 0.87 | 54K | -2.50% |
| 2026-10-21 | 0.91 | 0.92 | 0.86 | 0.89 | 100K | +0.31% |
| 2026-10-20 | 0.86 | 0.91 | 0.86 | 0.89 | 61K | +2.67% |
| 2026-10-19 | 0.87 | 0.89 | 0.85 | 0.87 | 91K | -0.25% |
| 2026-10-16 | 0.91 | 0.94 | 0.87 | 0.87 | 91K | -5.91% |
| 2026-10-15 | 0.90 | 0.98 | 0.90 | 0.93 | 136K | -2.51% |
| 2026-10-14 | 0.91 | 0.95 | 0.89 | 0.95 | 132K | +1.62% |
| 2026-10-13 | 0.96 | 0.96 | 0.92 | 0.93 | 70K | +1.36% |
| 2026-10-12 | 0.99 | 0.99 | 0.91 | 0.92 | 46K | -5.80% |
| 2026-10-09 | 0.97 | 1.00 | 0.97 | 0.98 | 43K | +0.59% |
| 2026-10-08 | 0.97 | 0.99 | 0.97 | 0.97 | 66K | -2.64% |
| 2026-10-07 | 0.99 | 1.02 | 0.97 | 1.00 | 93K | +0.51% |
| 2026-10-06 | 1.00 | 1.02 | 0.97 | 0.99 | 132K | +0.34% |
| 2026-10-05 | 1.00 | 1.12 | 0.98 | 0.99 | 206K | +0.60% |
| 2026-10-02 | 1.00 | 1.02 | 0.98 | 0.99 | 54K | -1.49% |
| 2026-10-01 | 1.05 | 1.05 | 1.00 | 1.00 | 50K | -2.91% |
| 2026-09-30 | 1.05 | 1.07 | 1.03 | 1.03 | 104K | 0.00% |
| 2026-09-29 | 1.02 | 1.05 | 1.00 | 1.03 | 82K | +1.98% |
| 2026-09-28 | 1.00 | 1.04 | 0.99 | 1.01 | 112K | 0.00% |
| 2026-09-25 | 1.03 | 1.05 | 0.99 | 1.01 | 239K | -0.98% |
| 2026-09-24 | 1.03 | 1.04 | 0.99 | 1.02 | 65K | 0.00% |
| 2026-09-23 | 1.02 | 1.03 | 1.00 | 1.02 | 75K | +2.00% |
| 2026-09-22 | 1.02 | 1.05 | 0.99 | 1.00 | 206K | -0.99% |
| 2026-09-21 | 1.04 | 1.05 | 1.00 | 1.01 | 81K | -1.94% |
| 2026-09-18 | 1.04 | 1.06 | 1.01 | 1.03 | 157K | +0.98% |
| 2026-09-17 | 1.03 | 1.04 | 0.99 | 1.02 | 80K | +2.09% |
| 2026-09-16 | 1.00 | 1.02 | 0.98 | 1.00 | 63K | -2.05% |
| 2026-09-15 | 1.04 | 1.04 | 0.99 | 1.02 | 115K | -0.97% |
| 2026-09-14 | 1.03 | 1.05 | 1.01 | 1.03 | 67K | 0.00% |
| 2026-09-11 | 1.03 | 1.05 | 1.02 | 1.03 | 96K | +1.98% |
| 2026-09-10 | 1.03 | 1.03 | 0.98 | 1.01 | 94K | -1.94% |
| 2026-09-09 | 1.03 | 1.06 | 1.03 | 1.03 | 138K | 0.00% |
| 2026-09-08 | 1.07 | 1.08 | 1.02 | 1.03 | 320K | -4.63% |
| 2026-09-04 | 1.10 | 1.13 | 1.08 | 1.08 | 88K | -2.70% |
| 2026-09-03 | 1.14 | 1.14 | 1.09 | 1.11 | 127K | -1.77% |
| 2026-09-02 | 1.07 | 1.17 | 1.07 | 1.13 | 241K | +2.73% |
| 2026-09-01 | 1.08 | 1.11 | 1.06 | 1.10 | 283K | +0.92% |
| 2026-08-31 | 1.13 | 1.13 | 1.08 | 1.09 | 250K | -3.54% |
| 2026-08-28 | 1.12 | 1.15 | 1.11 | 1.13 | 88K | +0.89% |
PHIO 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.
PHIO — Frequently Asked Questions
Quick answers to the most common questions about buying PHIO stock.
How has PHIO stock performed recently?
PHIO declined -45.9% over the past year, below its 5-year annualized CAGR of -66.2%. The stock trades below its 200-day moving average, reflecting the downtrend.
What is PHIO's all-time high price?
Phio Pharmaceuticals Corp. reached $999999.00 on 2015-03-09. The 52-week high is $1.88. Current 1-year return of -45.9% places the stock further from historical peaks.
Where can I download PHIO historical price data?
This page provides PHIO daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2008-2026, downloadable in CSV format.