Fastest-Growing NSE Stocks September 2025

Top NSE Performers, Reasons Behind the Rally, and Investor Insights

The Nairobi Securities Exchange (NSE) has had one of its strongest years in a decade. By September 2025, several stocks have delivered extraordinary returns, drawing both local and foreign investors back to the market. This article breaks down the fastest-growing NSE stocks, explains why they have surged, and highlights what investors need to know before making a move.

Kenya’s Stock Market in September 2025

The NSE is on a remarkable upswing. The NSE All Share Index (NASI) stands at about 178 points, up nearly +44% year-to-date (YTD). Market capitalization has climbed above KSh 2.8 trillion, making 2025 one of the best performing years since the early 2010s.

Much of this rally has been fueled by returning foreign inflows, increased optimism about Kenya’s economy, and strong corporate restructuring stories. In August alone, foreign investors pumped KSh 1.65 billion into the NSE, reversing years of net outflows.

This broad momentum has lifted nearly all sectors, but certain individual stocks are posting spectacular returns, earning them a spot as the fastest-growing NSE stocks this September.

Top 10 Fastest-Growing NSE Stocks as of September 2025

According to data from the NSE daily reports, TradingView market movers, and analyst briefings, the following companies have been the strongest gainers so far in 2025:

1. Sameer Africa (SAME) – Up +576% YTD.
   Once a tyre manufacturer, Sameer pivoted into property leasing and diversification. This change, combined with renewed investor confidence, made it the single biggest winner this year.
2. Home Afrika (HAFR) – Up +210% YTD.
   A long-time underperformer, Home Afrika has surprised investors in 2025. Renewed interest in real estate development and restructuring optimism pushed its stock price higher.
3. Kenya Power (KPLC) – Up +196% YTD.
   With growing electricity demand and policy support for energy reforms, Kenya Power has been one of the most talked-about utility plays this year.
4. TransCentury (TCL) – Up +187% YTD.
   The infrastructure investment group has benefited from debt restructuring and renewed optimism around regional projects.
5. Kenya Reinsurance (KNRE) – Up +183% YTD.
   A financial services play, KNRE has seen strong demand as investors look for exposure to insurance growth in Kenya and the wider African region.
6. Express Kenya (XPRS) – Gained over +150% YTD.
   This logistics firm has been on investors’ radar due to restructuring and hopes of benefitting from improved transport demand.
7. CIC Insurance Group (CIC) – Strong triple-digit YTD growth.
   With improving insurance penetration in Kenya, CIC is enjoying strong sentiment.
8. HF Group (HFCK) – Gained significantly as real estate financing recovered.
9. KenGen (KEGN) – With renewed focus on green energy and geothermal expansion, KenGen remains a mid-cap winner.
10. NSE PLC (NSE) – The exchange’s own stock has gained value as overall activity and investor participation rebounded.

Together, these stocks form the fastest-growing group in September 2025, delivering gains that vastly outpace the broader market.

Read Also: Top 5 African Stock Markets in 2025

Why These Stocks Are Surging

Several themes explain the strong rallies:

1. Small-cap dynamics – Many top gainers are smaller firms like Sameer, Home Afrika, and Express Kenya. With fewer shares available, even modest buying created massive spikes in price.
2. Restructuring and business pivots – Sameer Africa’s pivot to property leasing and TransCentury’s debt restructuring triggered investor optimism.
3. Macroeconomic tailwinds – Lower interest rates, stabilizing inflation, and renewed GDP growth boosted investor confidence.
4. Foreign investor return – Foreign inflows surged in mid-2025, driving liquidity into both blue-chips and smaller plays.
5. Sector themes – Utilities like Kenya Power and KenGen gained from energy reforms, while financials like CIC and KNRE benefited from an expanding insurance sector.

Read Also: Kenyan Banks Climb the NSE Ranks

What Investors Must Keep in Mind

While fast-growing stocks are attractive, they come with risks. Many of the names on this list are volatile and trade on thin liquidity. Prices can swing dramatically on small trades, meaning profits can evaporate quickly.

Here’s a checklist for investors:

• Do your homework: Verify if gains are backed by fundamentals, not just speculation.
• Watch liquidity: Thinly traded counters can trap you if you want to sell.
• Diversify: Don’t put all your capital into high-flyers—balance with stable blue-chips like Safaricom or Equity Group.
• Use stop losses: Protect yourself from sharp reversals.
• Track daily price lists: The NSE publishes daily top gainers and losers—these are essential for momentum investors.

Final Takeaway

September 2025 has been a golden month for Kenyan equities, with the fastest-growing NSE stocks like Sameer Africa, Home Afrika, Kenya Power, TransCentury, and Kenya Re posting triple-digit gains.

The rally is a mix of solid fundamentals, restructuring wins, and small-cap momentum, fueled by foreign inflows and improved economic conditions.

But investors should remain cautious. These high flyers can deliver extraordinary returns, but they are also risky. Long-term wealth building requires balancing speculative opportunities with strong, steady companies that provide dividends and stability.

If you’re following the fastest-growing NSE stocks this September, the opportunity is real—but so is the volatility. Enter with eyes wide open.