A Historic Milestone: How the FTSE 100 Broke Through 10,000 Points in 2026

The London stock market entered the history books in 2026 with a milestone that had long been anticipated by investors. The FTSE 100, the index that tracks the largest companies listed in the UK, finally broke through the symbolic barrier of 10,000 points for the first time ever, marking a significant moment for British finance.

Crossing the 10,000 barrier

The historic breakthrough came right at the start of the year. On 2 January 2026, the very first trading day, the FTSE 100 climbed to reach 10,052 points, surpassing the 10,000 mark for the first time in its history. It was a symbolic achievement that immediately captured the attention of markets and commentators alike.

The milestone did not come out of nowhere, but instead capped off a remarkably strong period for UK shares. During 2025, the index had already delivered gains exceeding 20 percent, an impressive performance that laid the foundations for the record breaking start to the new year and reflected renewed confidence in the market.

What drove the rally

Several factors combined to push the index higher. Analysts pointed to the resilience of company earnings, attractive valuations compared with other markets, and the globally diversified nature of many of the businesses listed in London. Strong cash generation and growing appeal to international investors also played an important role.

Another key ingredient was the outlook for interest rates. Investors increasingly expected the Bank of England to adopt a more accommodative policy, with the prospect of measured rate cuts. Lower interest rates tend to support share prices, and this expectation provided a powerful tailwind for the market throughout the period.

Fresh records through the year

The 10,000 point milestone proved to be just the beginning. The index continued to climb in the following weeks and months, setting a series of fresh record highs. By 18 February 2026, the FTSE 100 had risen above 10,600 points, adding to the growing sense that the market had entered a genuinely historic phase.

That February record was underpinned by encouraging news on inflation. Price growth had slowed to 3 percent, the lowest level since March 2025, strengthening expectations of interest rate cuts. Falling costs in areas such as petrol, airfares, food and education all helped to brighten the overall inflation outlook for consumers.

Defence and mining lead the way

Certain sectors stood out as the driving forces behind the gains. Defence stocks performed particularly well, with BAE Systems rising around 4 percent after reporting higher revenue, orders and profit. Babcock climbed 3 percent, while Rolls-Royce added close to 2 percent, reflecting firm demand across the entire sector.

Mining companies also made a strong contribution to the rally. Glencore rose 2.6 percent after its results beat expectations, while Antofagasta and Anglo American each gained more than 1 percent. Rising metal prices, including notable advances in precious metals, helped to lift the wider mining sector during this particular period.

The banking sector added further momentum at various points. On an earlier record day in late October 2025, HSBC had surged more than 4 percent after posting stronger than expected quarterly results and raising its profitability outlook. Such performances underlined the impressive breadth of the market's overall strength.

New peaks and remaining risks

The upward trend continued into the summer. On 31 July 2026, the FTSE 100 reached an intraday record high of 10,989 points, edging ever closer to the 11,000 mark. Over the preceding 52 weeks, the index had ranged widely, from a low of around 9,107 points to that new peak of nearly 10,989 points.

Despite the optimism, analysts were careful to highlight the risks that remained. Geopolitical tensions, the possibility of an unexpected resurgence in inflation, a slowdown in global growth and any breakdown in earnings delivery were all flagged as potential threats. The strong run was expected to become choppier as the year progressed.

In the end, 2026 will be remembered as the year the FTSE 100 finally conquered the 10,000 point milestone and pushed on to new heights. Driven by resilient companies, supportive monetary policy and standout performances from defence and mining, London's leading index reminded the world of the enduring strength of the UK market.