NASDAQ · SMMTHealthcarePharmaceuticals

Summit Therapeutics Inc. Common Stock (SMMT)

$16.17+2.34%
Close Nov 4, 2026 · split-adjusted
Nov 4, 2026$16.17▼ 7.55% in range
Nov 4, 2025Low $12.43 · High $26.38Nov 4, 2026
What changed · written from our data
As of Nov 4, 2026

Summit Therapeutics closed at $16.17 on Nov 4, up 2.34%, 38.7% below its 52-week closing high. Volume of 4.3M shares was 0.84× its 20-day average (close to normal).

Split-adjusted performance: -6.6% over one month, -9.4% over six months, -11.3% over one year.

Short interest was 40.9M shares at the Oct 15 settlement (29.5% of float, 7.0 days to cover).

Market cap$12.90B797.7M shares
Revenue · quarter$0.00—
Diluted EPS$-0.28—
P/E · TTM—
Net margin—
Dividend yieldNone
52-week range12.43 – 26.38−38.7% from high
Volume4.3M0.84× 20-day avg
Volatility · 60d70.7%Annualised
Short % of float29.5%7.0 days to cover
Net cash$690.7MCash $690.7M
Next earnings—Not scheduled
Split-adjusted performance
1W +2.5%1M −6.6%3M +19.4%6M −9.4%YTD −7.5%1Y −11.3%3Y +740.0%5Y +214.0%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Pharmaceuticals

Percentile among 420 companies (100 = best)

6-month momentum64
Revenue growth—
Net margin—
Value (low P/E)—
Size96

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

Short interest

Details →
Shares short40.9M−0.6% vs prior
Days to cover7.0Settled Oct 15
% of float29.5%
Short vol. 10d53.8%of daily volume

Closest peers by size in Pharmaceuticals

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
SMMTSummit Therapeutics$16.17+2.34%−9.4%———$12.90B
ELANElanco Animal Health Incorporated$25.31+3.01%−3.3%+10.2%3.9%—$12.65BCompare
BMRNBioMarin Pharmaceuticals$57.13+2.64%+4.6%+19.9%4.5%151.5$11.06BCompare
BBIOBridgeBio Pharma$77.89+5.21%+14.4%+192.6%−23.5%—$15.17BCompare
JAZZJazz Pharmaceuticals$234.66+2.14%+2.7%+10.4%−38.9%74.0$15.23BCompare
TGTXTG Therapeutics$61.63+1.45%+46.8%+70.3%3.2%21.4$9.43BCompare
PTGXProtagonist Therapeutics$143.37+2.23%+37.9%+3749.2%76.3%111.9$9.28BCompare
SYRESpyre Therapeutics$99.04−0.23%+35.7%———$9.26BCompare
MDGLMadrigal Pharmaceuticals$400.43+1.04%−25.8%+50.1%12.9%—$9.25BCompare

Quick answers

What does Summit Therapeutics do?
Summit Therapeutics Inc is a biopharmaceutical company that focuses on the discovery, development, and commercialization of novel antibiotics for serious infectious diseases. Its CDI (Clostridiodes difficile infection) product candidate is ridinilazole, an orally administered small molecule antibiotic.
What is SMMT's market cap?
$12.90B, based on the Nov 4 close of $16.17.
Does Summit Therapeutics pay a dividend?
No regular cash dividend has been paid in the last year.
How much of SMMT is sold short?
40.9M shares, 29.5% of float, as of Oct 15, 2026.
What sector is SMMT in?
Healthcare, in the Pharmaceuticals industry.

About Summit Therapeutics

Summit Therapeutics Inc is a biopharmaceutical company that focuses on the discovery, development, and commercialization of novel antibiotics for serious infectious diseases. Its CDI (Clostridiodes difficile infection) product candidate is ridinilazole, an orally administered small molecule antibiotic. It has two geographical segments: the United States and the United Kingdom.

HQ: Miami, FL265 employeesListed Mar 5, 2015smmttx.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