About the expert

Tom Sieber is AJ Bell's Content Editor. He was previously the Editor of Shares Magazine. He has been with the business since 2012.

Tom is a regular contributor to the AJ Bell Money & Markets podcast and a stock market analyst for AJ Bell. He has also chaired and presented at various AJ Bell events – both online and in person.

Covering a variety of different sectors including resources and media, he has been a journalist for nearly two decades and has written about investing since 2007. Tom has a degree in History from Bristol University and a post-graduate diploma in Print Journalism from the University of Central Lancashire.

He has an interest in politics and economics that can be traced back to trip to the UN headquarters in New York as a UN Young Ambassador at 16, and is passionate about demystifying the financial markets and providing genuinely useful insights to help people with their investing.

Outside of work, Tom is a keen runner, although his days of completing half marathons and marathons may be behind him! He's also a big cinema fan.

Latest articles from Tom Sieber

  • 30 December 2025

    Three big market themes to watch in 2026

    As we approach the end of what has been broadly a positive year for investors, it’s time to look ahead to what might move markets in the year ahead. This article examines three key themes which could drive markets in 2026.

    1. Will AI spread its wings?

    In the last knockings of 2025, there has been mounting concern about a potential AI bubble, with...

    5 min read
    the number 2026 on a futuristic background
  • 28 December 2025

    The big stocks that doubled investors’ money in 2025

    It’s been a great year for markets around the world, and even better year for anyone who picked one of the stocks that doubled investors’ money in 2025 when factoring in share price gains and dividends.

    Here are some of the big names to have hit the jackpot for investors from the UK and the US stock market.

    FTSE 100

    Starting in the UK, four...

    3 min read
    screen with finance graphs
  • 19 December 2025

    Inflation boost, Micron shines, Nike slumps: US markets this week

    A lower-than-expected reading of US inflation helped Wall Street claw back some ground after what has been another difficult week for stocks across the Atlantic.

    The latest CPI number showed prices rose 2.7% over the 12 months to November. That pace was down from 3% in September and materially lower than the 3.1% forecast by analysts. In the...

    4 min read
    American Flag Flying on Wall Street
  • 19 December 2025

    What the pre-Christmas interest rate cut means for your money

    In its final decision for 2025 the Bank of England has delivered a pre-Christmas interest rate cut from 4% to 3.75%. The last time rates were below 4% was all the way back in January 2023.

    At that time, inflation was in double digits whereas today, despite still being above the Bank’s 2% target, inflation is at 3.2%. This reading, for November 2025...

    4 min read
    Man using calculator
  • 15 December 2025

    The best way to get the UK investing is education not Cash ISA cuts

    The decision by the chancellor to cut the Cash ISA allowance for under-65s to £12,000 appears to have been driven, at least in part, by an aspiration to get the UK investing on a much larger scale.

    AJ Bell is on record that the ISA needs to be simplified, rather than made more complex as will be the case as a result of this change. Elsewhere in the...

    3 min read
    Shares magazine
    person writing in an exam
  • 15 December 2025

    Festive trading: what to expect from Next, Tesco and more

    December is a key trading period for UK retailers which can make or break the year. With the Budget not as damaging as some may have feared, companies are now in a position focus on the festive season.

    Next is seen as a barometer for the UK retail sector due to its wide range of products and broad customer base.

    Traditionally it is also the first...

    3 min read
    Shares magazine
    Seasonal image of the month ahead
  • 11 December 2025

    Nvidia vs Google: what next as AI race hots up?

    No investor, whether they want to or not, can really afford to ignore microchip giant Nvidia. While it may have shrunk a little of late, the world’s largest company remains so big that, as of 31 October 2025, it accounted for around 6% of the global MSCI World index all on its own.

    This means nearly anyone with broad global exposure to the markets...

    8 min read
    Shares magazine
    google and nvidia chips
  • 8 December 2025

    How to pick a stock

    There are more than 1,500 shares listed in the UK alone and tens of thousands across the globe which gives investors a huge amount of choice over what companies to invest in.

    Narrowing down the field requires some research to determine if a stock fits with your preferences and investment goals.

    While everyone is different, there are some broad...

    5 min read
    Man looking at charts and papers at his desk
  • 14 November 2025

    AI, Disney and AMD: what happened on US markets this week

    US markets look set to end the week on the back foot as investors grow more sceptical of the AI boom. It represents a complete turnaround from the start of the week when hopes that the government shutdown would be resolved gave stocks a boost.

    By the time the Trump administration signed a bill to end the shutdown on 12 November, equity indices...

    5 min read
    Author
    Advanced Micro Devices