Penny Stocks on the Move: Today’s Top Gainers and Biggest Decliners

On May 29, 2025, the penny stock market witnessed significant fluctuations, with some companies experiencing remarkable gains while others faced dramatic declines. Among the top gainers, Harvard Bioscience, Inc. registered the most substantial increase, while Elong Power Holding Limited saw the most significant drop in stock value. Below is a detailed overview of the top gainers and decliners in the penny stock market.

Top Gainers

Harvard Bioscience, Inc. (HBIO)
Harvard Bioscience, Inc., a key player in the Life Sciences Tools and Services industry, witnessed a remarkable stock surge of 135.92% today, ranking first among penny stocks. The stock hit an intraday high of $0.95 before closing at $0.67. Recent reports indicate that the company announced its first-quarter 2025 financial results with revenues of $21.8 million on May 12, 2025, and another report from May 22, 2025, highlights a strategic plan to implement $4 million in layoffs to improve financial stability.

Zeo Energy Corp. (ZEO)
Zeo Energy Corp. experienced a remarkable 117.09% increase in its stock today, ranking second among penny stocks. The company, operating in the electronic equipment, instruments, and components industry, reached an intraday high of $3.47 before closing at $3.43. Reports indicate Zeo Energy's shares surged following the announcement of a definitive merger agreement to acquire Heliogen, Inc. for $10 million in an all-stock transaction, expected to close in Q3 2025. Additionally, Zeo received a Nasdaq notice on May 22, 2025, concerning late filing of its Q1 financial report, which analysts say might have influenced investor sentiment positively.

IM Cannabis Corp. (IMCC)
IM Cannabis Corp. witnessed a significant stock surge of 84.13% today, ranking third among penny stocks, with an intraday high of $5.97 and closing at $4.99. The pharmaceutical company operates in Israel and Germany, focusing on medical cannabis distribution. Reports indicate that on May 27, IM Cannabis raised C$2.3 million in a secured debenture offering, and on May 28, they announced plans to voluntarily delist from the Canadian Securities Exchange, contributing to the stock's upward movement.

Webus International Limited (WETO)
Webus International Limited (NASDAQ: WETO), specializing in Transportation Infrastructure, saw a remarkable stock surge of 68.88% today, ranking fourth among penny stocks. The company reached an intraday high of $4.25 and closed at $3.31. Reports indicate that as of May 29, 2025, Webus unveiled a strategic vision for a $300M financing plan, renewing significant agreements to enhance global payment solutions, with analysts saying these initiatives are driving today's stock momentum.

Healthcare Triangle, Inc. (HCTI)
Healthcare Triangle, Inc., a prominent player in software, saw a remarkable 50% surge in its stock price today, ranking fifth in the penny stock market. The stock's intraday high reached $0.01 before closing at $0.01. Recent reports indicate that Healthcare Triangle secured major health system contracts and closed a $15.2 million PIPE offering, contributing to its stock's impressive rise.

Top Decliners

Elong Power Holding Limited (ELPW)
Elong Power Holding Limited, a player in the electrical equipment industry, witnessed a dramatic stock plunge today of 59.14%, ranking first among penny stocks. The stock hit an intraday low of 1.30 before closing at 1.43. Recent reports indicate that Elong Power is grappling with Nasdaq compliance issues, receiving notices due to its market value and bid price falling below required thresholds, potentially leading to delisting risks.

Brooge Energy Limited (BROG)
Brooge Energy Limited (BROG), operating within the petroleum, natural gas, and consumable fuels industry, experienced a significant decline in its stock value today, decreasing by 57.18%, marking it as the second-largest drop in the penny stock market. The stock reached an intraday low of $1.60 before closing at $1.82. Recent reports indicate that Brooge Energy plans to voluntarily delist from Nasdaq by June 2025, with the Board citing lack of active trading market and cost concerns as reasons for this decision; this announcement on May 28, 2025, has contributed to today's sharp decline.

Revelation Biosciences, Inc. (REVB)
Revelation Biosciences, Inc., a biotechnology company, experienced a significant stock drop of 54.40% today, ranking third in the penny stock market. The stock reached an intraday low of 0.83 and closed at 0.88. Recent reports indicate that Revelation Biosciences announced the pricing and closing of a $4 million public offering on May 29, 2025, which analysts say may have contributed to the stock's plunge today. Revelation Biosciences also announced the retirement of George Tidmarsh, MD, PhD from its Board of Directors on May 28, 2025.

Jinxin Technology Holding Company (NAMI)
Jinxin Technology Holding Company, specializing in comprehensive consumer services, witnessed a dramatic plunge in its stock today, falling by 53.66% and ranking fourth in the penny stock market. The stock hit an intraday low of 1.11 and closed at 1.33. Recent reports indicate that on May 28, 2025, Jinxin's collaboration with Tencent Cloud faced scrutiny over potential regulatory issues, and analysts say this has significantly impacted investor sentiment, contributing to today's stock decline.

Vivopower International Plc (VVPR)
Vivopower International Plc, operating as an independent power producer and energy trader, experienced a significant market downturn today, closing down 37.74% at a price of $4.24, with an intraday low of $4.15, ranking fifth in today's penny stock market movement. Reports indicate on May 28, 2025, VivoPower announced a strategic shift towards an XRP-focused digital asset treasury strategy and a US$121 million private placement, which analysts say may have fueled investor uncertainty, contributing to the stock's sharp plunge.