What political headlines mean for your investments

Recent news has been dominated by events in the Middle East. While the situation remains uncertain, we all hope for a swift resolution and greater stability in the region.

Closer to home, political change has also been in the headlines. At the time of writing, it looks increasingly likely that Andy Burnham could become the next Prime Minister and possibly as soon as this month following his by-election success in Makerfield.

One issue he has spoken about is the importance of keeping to the government’s fiscal rules. Put simply, these rules are designed to show that day-to-day public spending can be covered by tax receipts, while borrowing is mainly used for investment and overall debt gradually falls as a share of the economy.

Why does this matter to investors? When markets become concerned about government borrowing, the cost of that borrowing can rise, often referred to as “gilt yields rising” or “gilt yields surging”. It was also one of the issues that affected market confidence after Liz Truss’ now-infamous mini-budget.

It is understandable if these headlines feel worrying. Gilt yields can affect things like mortgage rates, savings rates and the value of bonds. It is also important to remember that gilt yields move around all the time, and for long-term investors with globally diversified portfolios, short-term movements usually tell us far less than the headlines suggest.

A gilt is a loan to the UK government, and when the government needs to borrow money, it can issue gilts. Investors buy those gilts and receive regular interest payments, with the original amount due to be repaid when the gilt matures.

The yield is the return an investor expects to receive if they buy the gilt at today’s price and hold it to the end. Gilt prices and yields move in opposite directions. A simple way to think about it is like a seesaw: when the price goes up, the yield goes down; when the price goes down, the yield goes up.

The chart below shows UK gilt yields over the longer term. During that period, the UK has had different governments, many budgets, and plenty of political uncertainty. Yields have moved up and down through all of this.

Figure 1: Gilt yields over time based on UK political party in power

Source: Albion Strategic Consulting. Data source: Bank of England. Using 10y nominal monthly spot curve, Jan-70 to Apr-26. Blue = Conservative, red = Labour, yellow = Coalition.

The next chart looks at how much yields changed from one year to the next. Again, there is no simple pattern that allows us to say one political party or one event consistently leads to a predictable result.

Figure 2: 1-year change in gilt yields based on UK political party in power

Source: Albion Strategic Consulting. Data source: Bank of England. Using 10y nominal monthly spot curve, Jan-70 to Apr-26. Blue = Conservative, red = Labour, yellow = Coalition.

Gilt yields are affected by many things at the same time: interest rates, inflation, global events, energy prices, government borrowing plans and investor confidence, to name only a few.

Politics can influence some of these factors, but it is only one part of a much bigger picture. That is why the market reaction to political events is often less clear-cut and less lasting than the headlines imply.

If the future direction of yields were easy to predict, investors would already have acted on that information. Market prices reflect the views of millions of buyers and sellers, all processing information at the same time. This makes it very difficult for any one person, government or institution to predict the next move with confidence.

Even professional investors struggle to do this consistently. In the ten years to December 2025, fewer than 10% of professional fund managers in the UK gilt sector beat the wider gilt market.

The bond part of your portfolio is there to provide some stability compared with more volatile shares. It is not designed to make short-term predictions about which way yields will move. Movements in bond prices and yields are a normal part of investing.

Your portfolio may include gilts, but it also includes a globally diversified bond allocation. This helps reduce the impact of movements in any one bond market.

It is also worth remembering that yields today are much higher than the near-zero levels we saw a few years ago. That can be helpful for long-term bond investors, because higher yields improve the return now available from bonds.

The opposite is also true. Falling yields can feel positive because bond prices rise, but they usually mean lower future returns from bonds. So neither rising nor falling yields are automatically good or bad in isolation.

When headlines are dramatic, it is tempting to draw a straight line between political events and your investments. In reality, markets are more complex than this, and no one can reliably know where yields will be in future.

The sensible approach is to accept that market noise is part of investing and to keep political predictions out of portfolio construction. Your long-term plan should be driven by your goals, your time horizon and the level of risk that is right for you.