NASDAQ · PHIOHealthcarePharmaceuticals

Phio Pharmaceuticals Corp. Common Stock (PHIO)

$0.8699−3.67%
Close Nov 4, 2026 · split-adjusted
Oct 30, 2026$0.86▼ 53.76% in range
Nov 3, 2025Low $0.85 · High $1.86Oct 30, 2026
What changed · written from our data
As of Nov 4, 2026

Phio Pharmaceuticals closed at $0.87 on Nov 4, down 3.67%, within 2.3% of its 52-week closing low. Volume of 66.6K shares was 1.03× its 20-day average (close to normal).

Split-adjusted performance: -12.5% over one month, -24.4% over six months, -53.2% over one year.

Short interest was 136.4K shares at the Oct 15 settlement, up 52.5% from the prior report (1.2% of float, 1.5 days to cover).

Market cap$10.1M11.6M shares
Revenue · quarter$0.00—
Diluted EPS$-0.36—
P/E · TTM—
Net margin—
Dividend yieldNone
52-week range0.85 – 1.86−53.2% from high
Volume66.6K1.03× 20-day avg
Volatility · 60d44.5%Annualised
Short % of float1.2%1.5 days to cover
Net cash$13.0MCash $13.0M
Next earnings—Not scheduled
Split-adjusted performance
1W −5.1%1M −12.5%3M −17.9%6M −24.4%YTD −17.2%1Y −53.2%3Y −92.4%5Y −99.5%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Pharmaceuticals

Percentile among 420 companies (100 = best)

6-month momentum51
Revenue growth—
Net margin—
Value (low P/E)—
Size15

Industry medians: 6-month return −25.5%, revenue growth +6.2%, net margin −33.8%, P/E 16.1×.

Short interest

Details →
Shares short136.4K+52.5% vs prior
Days to cover1.5Settled Oct 15
% of float1.2%
Short vol. 10d44.7%of daily volume

Closest peers by size in Pharmaceuticals

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
PHIOPhio Pharmaceuticals$0.8699−3.67%−24.4%———$10.1M
ASBPAspire-Lakewood Holdings$7.31+0.55%+31.0%—−2009.6%—$10.3MCompare
BFRGBullfrog AI Holdings$0.5263+0.59%−25.4%+547.6%−636.8%—$9.8MCompare
PTNPalatin Technologies$6.02+15.33%−68.3%—−1449.1%—$10.7MCompare
RKTORocket One$0.4422−4.33%————$11.0MCompare
TPSTTempest Therapeutics$0.4633−1.13%−77.1%———$9.3MCompare
CALCCalciMedica$1.35−8.50%−56.8%———$9.2MCompare
CURXCuranex Pharmaceuticals$5.80−6.30%−17.7%———$9.1MCompare
LSTALisata Therapeutics$1.06−2.75%−67.5%−100.0%——$11.5MCompare

News about Phio Pharmaceuticals

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No recent articles focused on Phio Pharmaceuticals.

Quick answers

What does Phio Pharmaceuticals do?
Phio Pharmaceuticals Corp is a clinical-stage biopharmaceutical company whose proprietary INTASYL small-interfering RNA gene silencing technology is designed to make immune cells more effective in killing tumor cells. Its pipeline programs are PH-762 and PH-894.
What is PHIO's market cap?
$10.11M, based on the Nov 4 close of $0.87.
Does Phio Pharmaceuticals pay a dividend?
No regular cash dividend has been paid in the last year.
How much of PHIO is sold short?
136.4K shares, 1.2% of float, as of Oct 15, 2026.
What sector is PHIO in?
Healthcare, in the Pharmaceuticals industry.

About Phio Pharmaceuticals

Phio Pharmaceuticals Corp is a clinical-stage biopharmaceutical company whose proprietary INTASYL small-interfering RNA gene silencing technology is designed to make immune cells more effective in killing tumor cells. Its pipeline programs are PH-762 and PH-894. The group is developing therapeutics that are designed to leverage INTASYL to precisely target specific proteins that reduce the body's ability to fight cancer, without the need for specialized formulations or drug delivery systems. It is committed to discovering and developing cancer treatments for patients by creating new pathways toward a cancer-free future. The Company operates with a single operating segment, the Clinical segment, and all assets are located in the United States.

HQ: King Of Prussia, PA6 employeesListed May 10, 2012phiopharma.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology