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

  • 6 January 2026

    Why have oil prices not surged after Venezuela strikes?

    Often oil prices go up when there is conflict in the world, particularly if there is a risk of some disruption to global supply.

    So, you might have expected the Trump administration’s move to oust Venezuelan president Nicolás Maduro to have prompted a spike in crude.

    However, prices were actually down modestly as traders had their first opportunity...

    3 min read
    Author
    Man doing inventory of oil barrels
  • 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
    Author
    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
    Author
    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
  • 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
  • 3 December 2025

    Where to find inspiration for your first ISA investments

    Funding your ISA is an important first step in tapping the wealth-generating potential of financial markets without the worries of tax.

    However, taking the plunge and selecting the investments you want to put your money into can be hard. For lots of people funds are an obvious starting point as, unlike individual stocks, you can achieve a level of...

    3 min read
    Author
    man sitting in living room thinking
  • 19 November 2025

    How to avoid AI concentration risks but still invest in the US

    Recent jitters in the AI sector have offered a painful reminder of the concentration risks associated with investing in US stocks.

    At the time of writing, the country’s flagship S&P 500 index makes up 38.1% of the information technology sector. Nine of the top 10 constituents, with Berkshire Hathaway the obvious exception, have direct links to the...

    4 min read
    Capitol Hill
  • 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
    Advanced Micro Devices