Cambium Networks, Purple Biotech, and Ernexa Therapeutics are the 3 Penny Stocks to watch on October 30, 2025, based on TipRanks’ Penny Stock Screener tool. Penny stocks are defined as stocks that trade at or below $5 per share and have a market capitalization below $300 million.
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The Penny Stock Screener helps investors scan stocks based on numerous parameters, including Sector, Price Target Upside, Smart Score, Analyst Consensus, Dollar Volume, and Price Change.
We leveraged the tool to pick the top three penny stocks with the highest Dollar Volume as of the close on October 29, 2025. Simply put, Dollar Volume is the number of shares traded on a particular day multiplied by the day’s share price.
Cambium Networks (CMBM) – Cambium Networks manufactures wireless telecommunications equipment, specializing in fixed wireless broadband, enterprise WiFi, network switches, and Internet of Things (IoT) solutions. On October 29, CMBM had a Dollar Volume of $1.54 billion, accompanied by a stock price surge of 377%.
Cambium announced its integration with SpaceX’s (PC:SPXEX) Starlink, which will enhance security, traffic intelligence, and multi-WAN scalability for customers that utilize Starlink’s Low Earth Orbit (LEO) satellite connections.
Purple Biotech (PPBT) – Purple Biotech is a clinical-stage biopharmaceutical company focused on developing focused on developing innovative therapies for cancer treatment. Yesterday, PPBT stock had a Dollar Volume of $438.91 million, while its stock price rocketed by 81%.
The company announced a production milestone for IM1240, a tri-specific antibody from its CAPTN-3 platform. IM1240 targets three proteins: the tumor marker 5T4, the T-cell receptor CD3 that activates immune responses, and the inhibitory receptor NKG2A found on NK and CD8⁺ T cells.
Ernexa Therapeutics (ERNA) – Ernexa Therapeutics is a clinical-stage biotech company focused on developing innovative treatments for cancer and autoimmune diseases. On Wednesday, ERNA had a Dollar Volume of $375.25 million, while its stock price soared by nearly 41%.
Cellipont Bioservices has partnered with Ernexa Therapeutics to advance ERNA-101, Ernexa’s lead cell therapy for ovarian cancer. The collaboration will focus on engineering, differentiation, and production to prepare the therapy for clinical manufacturing and trials.
To find more penny stocks like these, you can take a look at TipRanks’ Penny Stock Screener tool. It shows a list of all penny stocks, their price movement, and other vital data.