The FTSE 100 Index has pulled back in the past few days, falling from a high of £9,358 on August 22 to £9,187 today. Still, the blue-chip index has performed well this year as it jumped by over 21% from its lowest point in April. This article looks at the most notable performers this year and what to expect in September.

Top FTSE 100 gainers in 2025

Many companies in the FTSE 100 Index have done well by gaining by over 20% this year, mirroring the performance of the broader financial market. 

Fresnillo’s stock price has jumped by over 186% this year, making it the best-performing company in the index. Its performance is mostly because of the strong performance of silver. 

Silver, a top precious and industrial metal, has jumped to $40, the highest level in over a decade, driven by strong demand and a supply deficit. This is important for Fresnillo because it is one of the biggest players in the silver market.

Babcock International’s share price has soared by over 102% this year, making it the second-best-performing company in the FTSE 100 Index. It has jumped because of the ongoing demand for military equipment as it is a key manufacturer of warships, land systems, and aviation. 

European defense companies have surged this year as most countries have boosted their spending. Most of them are focusing their procurement on European companies amid the ongoing trade war with the US.

Airtel Africa’s share price has jumped by 94% this year as the telecom giant has continued to gain market share in the region. The most recent results showed that its customer base jumped by 9% to 169.4 million in the last quarter, with data one jumping by 17.4%.

Airtel is also benefiting from the money transfer business as the number of customers soaring to 45.9 million. Consequently, revenue jumped by 24.9% to $1.42 billion. 

Rolls-Royce share price has jumped by 88% this year as its three segments have continued thriving. Other top gainers in the index include BAE Systems, BT Group, St. James Place, Lloyds Banking Group, BAT, Standard Chartered, and Aviva. 

Top laggards in the Footsie Index

Not all companies in the FTSE 100 Index have done well this year. WPP stock price has dropped by 52% this year as the advertising industry has faced a major challenge. This is notable since WPP is the biggest advertising agency group globally. 

The most recent results showed that WPP Group’s revenue dropped by 7.8% in the first half to £6.6 billion, while the operating proit rose to £221 million.

Croda International stock price has dropped by 26% this year, making it the second-worst performing company in the FTSE 100 Index. Its recent results showed that the sales rose by 4.9% in the first half of the year to £855 million, while its profit plunged 20% to £85 million.

The other notable laggards in the FTSE 100 Index are companies like Bunzl, Taylor Wimpey, Diageo, Barratt Redrow, and the London Stock Exchange (LSE).

FTSE 100 Index analysis 

FTSE 100 Index stock | Source: TradingView

The daily timeframe chart shows that the FTSE 100 Index has pulled back in the past few days, moving from a high of £9,358 on August 22 to the current £9,187. 

On the positive side, the index remains above all moving averages, a sign that the bullish momentum is continuing. It has moved slightly below the weak, stop & reverse point of the Murrey Math Lines tool. 

Therefore, the most likely scenario is where the index rebounds and possibly hits the extreme overshoot point at £9,687, up by 5.60% from the current level. 

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