Vast Renewables, Solidion Technology, and iRobot are the 3 Penny Stocks to watch on March 13, 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 of below $300 million.
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 March 12, 2025. Simply put, Dollar Volume is the number of shares traded on a particular day multiplied by the day’s share price.

Vast Renewables (VSTE) – Vast Renewables Ltd. is one of the world’s leading providers of concentrated solar thermal power (CSP). VSTE’s systems generate, store, and deliver carbon free, utility-scale electricity as well as enable the production of green fuels. On March 12, VSTE had a Dollar Volume of $117.82 million, while its stock price jumped by 21.7%.
The company announced that it had secured clean energy projects worth A$180 million from the Australian Renewable Energy Agency to power South Australia’s grid and green fuels production. Investors reacted positively to the news, pushing VSTE stock higher yesterday.
Solidion Technology (STI) – Solidion Technology is engaged in developing and commercializing battery materials, components, cells, and selected module/pack technologies. STI stock had a Dollar Volume of $99.40 million yesterday, while its stock price skyrocketed by 35.2%.
On Wednesday, Solidion announced that it was able to achieve a cell energy density of 380 Wh/kg (Watt-hour per kilogram) for its lithium-sulfur (Li-S) batteries, marking a major milestone for the company. The next target was to achieve a cell energy density of 450 Wh/kg. The development and utilization of Lithium-sulfur (Li-S) batteries in electric vehicles is expected to reduce the battery costs of EVs, making them more affordable.
iRobot (IRBT) – iRobot is a consumer robot manufacturing company, known for its Roomba robot vacuum cleaners. IRBT’s Dollar Volume stood at $70.30 million on March 12, accompanied by a stock price decline of 35.7%.
iRobot reported disappointing performance for the fourth quarter of Fiscal 2024 on March 12. In the annual report, iRobot mentioned that there is “substantial doubt about our ability to continue as a going concern” since the company has been making operating losses and generating negative cash flows for several quarters. The company also noted that its board of directors is undertaking a strategic review of the business to explore a potential sale, transaction, or debt refinancing. IRBT stock price collapsed in reaction to the news.
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.
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