UK Penny Stocks To Watch In September 2025

The United Kingdom's stock market has recently faced challenges, with the FTSE 100 index experiencing declines due to weak trade data from China, highlighting ongoing global economic uncertainties. Despite these broader market pressures, penny stocks continue to capture investor interest as they represent opportunities in smaller or newer companies that may offer significant growth potential. While the term "penny stock" might seem outdated, these investments can still provide value when backed by strong financials and a clear growth path.

Top 10 Penny Stocks In The United Kingdom

Click here to see the full list of 297 stocks from our UK Penny Stocks screener.

Here's a peek at a few of the choices from the screener.

Altitude Group (AIM:ALT)

Simply Wall St Financial Health Rating: ★★★★★★

Overview: Altitude Group plc offers comprehensive solutions for branded merchandise within the corporate promotional products industry, print vertical markets, and the higher-education sector across North America, the United Kingdom, and Europe, with a market cap of £19.69 million.

Operations: The company generates revenue from North America at $35.83 million and the United Kingdom and Europe at $1.43 million.

Market Cap: £19.69M

Altitude Group plc, with a market cap of £19.69 million, has shown promising financial performance in recent times, reporting sales of US$37.26 million for the year ending March 31, 2025. The company is debt-free and its short-term assets exceed both short-term and long-term liabilities significantly. Despite a low Return on Equity at 7.8%, Altitude's net profit margins have improved to 3.2%. However, leadership changes could pose challenges; Nichole Stella stepped down as CEO in July 2025 amidst executive reshuffles including the appointment of Drew Whibley as CFO effective September 2025.

• Click to explore a detailed breakdown of our findings in Altitude Group's financial health report.
• Explore Altitude Group's analyst forecasts in our growth report.

Polar Capital Holdings (AIM:POLR)

Simply Wall St Financial Health Rating: ★★★★★★

Overview: Polar Capital Holdings plc is a publicly owned investment manager with a market cap of £435.27 million.

Operations: The company generates revenue of £226.11 million from its investment management business.

Market Cap: £435.27M

Polar Capital Holdings plc, with a market cap of £435.27 million, faces challenges as earnings declined by 13.4% over the past year despite revenue growth to £226.11 million. The company is debt-free and its short-term assets exceed liabilities significantly, suggesting financial stability. However, dividends at 10.19% are not well covered by earnings, raising sustainability concerns. Leadership transition is underway with Iain Evans set to replace retiring CEO Gavin Rochussen in September 2025 following an executive search process. Trading below fair value estimates and with high Return on Equity at 26.3%, it remains an intriguing option for investors seeking undervalued stocks.

• Get an in-depth perspective on Polar Capital Holdings' performance by reading our balance sheet health report here.
• Gain insights into Polar Capital Holdings' future direction by reviewing our growth report.

MOH Nippon (LSE:MOH)

Simply Wall St Financial Health Rating: ★★★★★★

Overview: MOH Nippon Plc offers real estate crowdfunding services in Japan and has a market cap of £62.65 million.

Operations: The company's revenue is derived from two main segments: Commission Revenue, amounting to ¥1.91 billion, and the Real Estate Business, contributing ¥2.10 billion.

Market Cap: £62.65M

MOH Nippon Plc, with a market cap of £62.65 million, is navigating significant challenges as it reported a substantial revenue decline to ¥4 billion from ¥11.11 billion year-over-year and incurred a net loss of ¥1.47 billion. Despite being debt-free for the past five years and having short-term assets of ¥5.2 billion that comfortably cover both short- and long-term liabilities, the company remains unprofitable with negative returns on equity at -25.83%. Recent changes include appointing MacIntyre Hudson LLP as auditors amid an inexperienced management team averaging 1.1 years in tenure, highlighting operational uncertainties ahead.

• Click here and access our complete financial health analysis report to understand the dynamics of MOH Nippon.
• Gain insights into MOH Nippon's historical outcomes by reviewing our past performance report.

Key Takeaways

• Explore the 297 names from our UK Penny Stocks screener here.
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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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