Spark Therapeutics
1D
1W
1M
3M
YTD
1Y
5Y
ALL
Why Robinhood?
You can watch ONCE and buy or sell other stocks, ETFs, and their options commission-free!About ONCE
Spark Therapeutics, Inc. engages in the research, development, and commercialization of gene therapies. Its product portfolio intends to treat inherited retinal sickness, liver-mediated, and neurodegenerative diseases.
CEOSylke Poehling, Ph.D
CEOSylke Poehling, Ph.D
Employees—
Employees—
HeadquartersPhiladelphia, Pennsylvania
HeadquartersPhiladelphia, Pennsylvania
Founded2013
Founded2013
Employees—
Employees—
ONCE Key Statistics
Market cap4.29B
Market cap4.29B
Price-Earnings ratio-17.35
Price-Earnings ratio-17.35
Dividend yield—
Dividend yield—
Average volume601.86K
Average volume601.86K
High today—
High today—
Low today—
Low today—
Open price—
Open price—
Volume0.00
Volume0.00
52 Week high$114.20
52 Week high$114.20
52 Week low$34.53
52 Week low$34.53
Stock Snapshot
Spark Therapeutics(ONCE) stock is priced at $113.57, giving the company a market capitalization of 4.29B. It carries a P/E multiple of -17.35.
On 2025-12-19, Spark Therapeutics(ONCE) stock opened at —, reached a high of —, and a low of —.
The Spark Therapeutics(ONCE)'s current trading volume is 0, compared to an average daily volume of 601.86K.
In the last year, Spark Therapeutics(ONCE) shares hit a 52-week high of $114.20 and a 52-week low of $34.53.
In the last year, Spark Therapeutics(ONCE) shares hit a 52-week high of $114.20 and a 52-week low of $34.53.