FTSE 100 Experiences Volatility: NatWest Surges While IG Group Plummets

Rachel Foster, Economics Editor
5 Min Read
⏱️ 4 min read

The FTSE 100 concluded a tumultuous week on a downward note, closing on July 31, 2026, just shy of a historic milestone as investors sought to realise profits amidst rising bond yields. The blue-chip index finished at 10,868.05, a decline of 29.22 points or 0.3%, following a peak of 10,989.45 earlier in the session. Despite the drop, the index recorded a weekly gain of 1.2%, reflecting a robust performance over the past days.

NatWest’s Strong Guidance Boosts Investor Confidence

Leading the day’s gains was NatWest, whose shares rose by 3.2% after the bank announced an upgrade to its profit forecasts for 2026. The financial institution indicated that it might introduce a share buyback programme during its upcoming annual results, a move that comes six months ahead of schedule due to better-than-expected profit and income figures from the second quarter.

AJ Bell’s investment director, Russ Mould, highlighted that this marked the fifth consecutive time NatWest had surpassed market expectations since the UK Government divested its remaining stake last May. He commented, “The company’s consistent ability to outperform forecasts has been bolstered by a climate of sustained high interest rates, alongside its strategic initiatives.”

IG Group Faces Major Setback

In stark contrast, IG Group suffered a significant setback, with its shares plummeting by 14% following news of its $1.3 billion acquisition of Underdog, a US-based operator in fantasy sports and prediction markets. While IG reported an 18% increase in revenue for the first half of 2026, totalling £642.8 million, investor sentiment soured as they grappled with the implications of the acquisition.

The online trading platform’s decision to pursue this acquisition raised questions among analysts regarding its long-term viability, especially in light of the challenging market conditions.

Corporate Developments in Retail and Housing

In other corporate news, J Sainsbury’s shares increased by 1.0% after the retailer disclosed plans to sell its Argos business for £120 million, significantly below its original purchase price. This strategic divestment aims to refocus the company on its core grocery operations. JPMorgan analyst Borja Olcese remarked that the Argos brand has long been a burden for Sainsbury, often impacting its market valuation compared to competitors like Tesco.

Meanwhile, housebuilder Taylor Wimpey saw its shares decline by 4.5% after announcing a reduction in its dividend policy and a new target for shareholder returns, now projected at 4% of net assets, down from 7.5%. This adjustment reflects the challenging landscape facing the UK housing market.

Rising Bond Yields Ignite Concerns

Market movements were further influenced by rising bond yields, with the yield on the US 10-year Treasury climbing to 4.74% from 4.67% the previous day. In the UK, the yield on 10-year gilts also rose to 5.05%, prompting concerns regarding inflation and interest rate policies. Two dissenting members of the Federal Reserve expressed the need for immediate rate hikes to prevent entrenched inflation, a sentiment echoed by various market analysts.

The pound traded at $1.3463, up from $1.3439 at the previous session’s close, indicating some strength against the dollar. Against the euro, sterling also showed gains, rising to €1.1702.

International Market Reactions

European stock markets displayed mixed results, with the CAC 40 in Paris and the DAX 40 in Frankfurt closing up by 0.3% and 0.1%, respectively. In the United States, market performance was varied: while the Dow Jones Industrial Average increased by 0.2%, the S&P 500 and Nasdaq Composite indices remained relatively flat. Notably, Apple shares fell by 9.3% after the tech giant cautioned about supply chain constraints affecting revenue growth. Conversely, Amazon’s stock surged by 13% following strong performance from its cloud division, Amazon Web Services.

Why it Matters

The fluctuations in the FTSE 100 highlight the delicate balance investors must navigate amidst an environment of rising interest rates and shifting corporate strategies. With NatWest’s encouraging outlook juxtaposed against IG Group’s struggles, the market is reminded of the volatility inherent in investment decisions. As economic indicators evolve, particularly in relation to inflation and bond yields, the ensuing weeks could prove crucial for both corporate profitability and investor confidence. The upcoming budget announcement from Chancellor John Healey on October 28 will further set the stage for the fiscal landscape, potentially influencing market sentiments and strategic corporate decisions in the near future.

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Rachel Foster is an economics editor with 16 years of experience covering fiscal policy, central banking, and macroeconomic trends. She holds a Master's in Economics from the University of Edinburgh and previously served as economics correspondent for The Telegraph. Her in-depth analysis of budget policies and economic indicators is trusted by readers and policymakers alike.
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