Kingfisher shares jumped 9% on results day

When a company’s share price jumps 9% in a single day it tends to attract attention. On 22 September 2026, that company was Kingfisher — the FTSE 100 group that owns B&Q and Screwfix in the UK, and several home improvement chains across Europe. The market index itself fell slightly that day. But Kingfisher rose nearly 9%, making it the best performer on the FTSE 100 and one of the sharpest single-day moves among large UK companies all year. Understanding why reveals something genuinely useful about how markets respond to company results.

The results, published at market open, are covered in detail by RTÉ/Reuters and Proactive Investors. The short version: Kingfisher earned significantly more than a year ago, upgraded its guidance for the full financial year, and did so despite total sales growing only modestly. The key was margins.

What Kingfisher is

Kingfisher is what investors call a retail group — a collection of store brands selling similar products under different names across different countries. Its two most recognised UK brands are B&Q, the large-format DIY and garden store found on retail parks across Britain, and Screwfix, a trade-focused chain selling tools, fixings, and building materials predominantly to professional tradespeople. Outside the UK it operates Castorama and Brico Dépôt in France, and smaller businesses in Poland, Iberia, and Romania.

The company’s fortunes tend to track the UK housing market fairly closely. When people are moving home or renovating, they spend at B&Q. When the housing market cools and consumers feel squeezed, big home improvement projects get postponed. That sensitivity to the economic cycle makes Kingfisher a cyclical stock rather than a defensive one — its earnings are more tied to consumer confidence than a supermarket or energy provider would be. The article on cyclical versus defensive stocks explains the distinction in detail.

What the H1 numbers showed

For the six months ending 31 July 2026, Kingfisher reported:

• Total sales: £7.1 billion, up 1.6% on the same period a year earlier.
• Like-for-like sales: up 0.3% — the underlying growth figure once new store openings are stripped out.
• Adjusted pre-tax profit: £404 million, up 9.9%.
• Adjusted earnings per share: 17.8p, up 16%.
• Gross margin: expanded by 70 basis points.

Look at those numbers carefully. Sales rose just 1.6%. But profit rose nearly 10% and earnings per share rose 16%. That kind of disparity between revenue growth and profit growth is only possible if the company is keeping a larger share of each pound it sells — in other words, if its margins are expanding.

A basis point is one hundredth of a percentage point. Seventy basis points of gross margin expansion means that for every £100 of goods Kingfisher sold, it kept roughly 70 pence more in gross profit than it did a year earlier. Across £7.1 billion of sales, that adds up to roughly £50 million in additional gross profit — before cost savings and a £14 million one-off business rates refund pushed the final profit figure even higher.

The margin lesson: doing more with less

This is one of the most important concepts to internalise as a student of markets: it is not just how much a company sells, but how much it keeps. Two businesses can report identical revenues and produce very different profits depending on their cost structures and pricing power. A business that sells more at thinner margins can actually earn less than one that sells less at better margins.

Margin expansion can happen for several reasons. A company might negotiate better terms with its suppliers. It might shift its product mix towards higher-margin categories. It might sell more through lower-cost channels such as e-commerce. Or it might simply cut its overhead costs without sacrificing revenue. Kingfisher’s online marketplace gross merchandise value rose 42% in the first half — online sales typically carry lower distribution costs than a large physical store, which helps margins.

The practical takeaway for investors is that a company reporting modest revenue growth is not necessarily stagnating. If margins are rising at the same time, profits can grow substantially faster than sales. Kingfisher’s first-half results were a clear demonstration of that dynamic.

Why Screwfix offset B&Q

Kingfisher’s H1 results were not uniformly positive. B&Q sales fell during the period, and big-ticket items — the kitchen installations, bathroom suites, and flooring that generate large individual transactions — declined 4.5%. With household budgets under pressure and the housing market subdued, consumers were deferring expensive renovation projects. In France, the Castorama and Brico Dépôt businesses also underperformed.

But Screwfix more than absorbed the slack. The trade channel — serving professional builders, plumbers, and electricians rather than weekend DIY shoppers — posted like-for-like growth of 5.6%. Trade sales across the group (excluding Screwfix itself) rose 16%. Tradespeople, unlike consumers deciding whether to redo the bathroom, generally keep spending regardless of consumer sentiment: they have contracts to complete and jobs to finish.

This dynamic illustrates something worth carrying into your portfolio thinking: diversification can work within a single company, not just across the different stocks you hold. Kingfisher’s exposure to both the consumer and trade markets meant that weakness in one offset by strength in the other, producing a more resilient overall performance than either business would have delivered alone. Our post on diversification covers how the same principle applies when you are choosing which shares to hold in your virtual portfolio.

The guidance upgrade: why it moved shares so much

The single biggest catalyst for the 9% share price move was Kingfisher’s decision to raise its full-year profit guidance. Going into the results, the company had guided investors towards an adjusted pre-tax profit of between £565 million and £625 million for the financial year ending January 2027. After publishing the H1 results, that guidance was raised to £595 million to £635 million.

That might appear a modest increase — around 5% higher at the midpoint. But guidance upgrades carry outsized weight in markets because of what they signal. When a company raises its full-year outlook after reporting its first-half results, it is telling investors: we have looked at how our business is performing, considered what the second half looks like, and we are confident enough to commit to a higher number. That is a meaningful statement, particularly when the broader consumer environment is described as “mixed” — as Kingfisher’s chief executive Thierry Garnier noted in the results statement.

The market does not compare a company’s results to last year’s results. It compares them to what investors were already expecting. If results beat expectations and the outlook is raised, shares can move sharply in response because two things have improved simultaneously: recent performance and future expectations. Our post on what guidance means for shares explains this dynamic in more depth.

Why one stock can rise 9% when the index falls

On 22 September 2026, the FTSE 100 closed down around 0.1%. Energy shares fell as oil prices softened, and cautious sentiment weighed on parts of the market. Yet Kingfisher finished the day at 332p, up roughly 8.6% — its strongest single-day performance in years, and its highest share price in over twelve months. Over the previous year its shares had risen about 32%.

This is a straightforward but important point for anyone building a portfolio in the Student Investor Challenge: the index and individual shares are not the same thing. On any given day, some stocks in the FTSE 100 will be rising sharply while others fall. The index is an average, and averages hide a great deal of variation. Holding shares in a company that posts strong company-specific news on a day when the broader market is weak can still generate a very positive return.

The reverse is also true. A rising market does not protect you from a company that disappoints on results day. Stock selection — choosing which companies to hold and understanding why — is where the game is really played. See the Student Investor Challenge to put this into practice with a virtual £100,000 portfolio.

What to watch in the second half

Kingfisher’s second-half performance will depend on whether UK consumer confidence recovers as the year progresses. The housing market, energy prices, and mortgage rates will all shape whether B&Q customers return to bigger renovation projects in the autumn and winter months. Screwfix is expected to continue growing, supported by a robust pipeline of new store openings and continued strength in its trade customer base.

For Student Investor participants, this results season — when large companies report their half-year and full-year numbers — offers some of the best learning opportunities of the year. Each set of results is a chance to practise reading the numbers beneath the headline, understanding what drove the market reaction, and thinking about what the forward guidance implies for the next twelve months.

FAQ

What is profit guidance?

Profit guidance is a forecast a company publishes telling investors what it expects to earn over the coming period. When a company raises its guidance — saying it now expects to earn more than previously forecast — shares often jump sharply because it signals that the underlying business is performing better than the market had anticipated.

What is a gross margin?

Gross margin is the percentage of revenue kept after paying the direct cost of products, before salaries and other overheads. If a company sells £100 of goods and pays £60 for them, the gross margin is 40%. Rising gross margins mean the company is either charging more, sourcing more cheaply, or shifting towards a more profitable product mix — all of which drive profits higher even when total sales are not growing quickly.

Why did Kingfisher shares rise while the FTSE 100 fell?

Individual shares and the overall index move independently. The FTSE 100 fell slightly on 22 September as energy shares dropped, but Kingfisher’s profit upgrade and strong underlying results were company-specific news powerful enough to push its shares nearly 9% higher. A falling index does not drag every stock in it down, just as a rising index does not protect every stock from disappointment.

What does like-for-like sales growth mean?

Like-for-like (LFL) sales measure revenue growth from stores open in both the current and previous comparable period. It strips out the effect of opening new shops or closing old ones, so you can tell whether the existing business is genuinely improving. Total sales can rise simply from opening more stores; LFL sales reveal whether each individual store is actually performing better.