Martin Gamble is Shares and Markets writer at AJ Bell. He was previously the Education Editor of Shares Magazine. He has been with the business since 2019.
Martin graduated from the University of Kent in 1984 with an accounting degree.
He has extensive financial markets experience gained through managing UK and European equity portfolios for institutions including Hermes Investment Management, Manulife Financial and Royal Bank of Canada.
While at Manulife Financial the funds Martin managed were consistently in the top quartile which was recognised with a ‘Stars of Excellence’ award.
Martin subsequently headed up the fund management business for Royal Bank of Canada in London.
Outside of work, Martin likes long distance hiking and playing Backgammon.
21 September 2026
The UK companies with the most reliable earnings growthEverything else being equal, steadier earnings growth compounds more reliably than the same average growth rate achieved with high year-on-year variance.
For example, earnings growth at critical life-saving technology specialist Halma has averaged around 12% over the last decade, which is close to its compound annual growth rate (CAGR) of 12% a...
18 September 2026
Martin Gamble on US markets: AI safety alarm rattles investorsUS stock markets were modestly lower this week, showing resilience against a raft of headwinds including higher oil prices, rising bond yields and AI safety concerns which, initially sent semiconductor chip stocks lower.
The Federal Reserve raised interest rates by a quarter of a percentage point as expected and signalled more hikes were likely.
A...
14 September 2026
UK retailers battle for consumer wallets against a tricky backdropThe UK retail sector is enduring its latest challenging period. Modest economic growth and stabilising sales volumes are being offset by increased costs partly due to 2025’s increases to the living wage and employer national insurance contributions. These factors have combined with reductions in business rates relief to squeeze margins.
Shoppers...
12 September 2026
The UK companies racking up debtHigher bond yields have investors wondering what companies will be prepared for a bit of extra strain on the balance sheet, and which ones could buckle under pressure. Based on AJ Bell analysis, some of the UK’s best-known names could face trouble.
When interest rates and bond yields were low, investors weren’t overly concerned with how much debt...
11 September 2026
Martin Gamble on US markets: Apple unveils foldable iPhone, ups pricesUS stock markets sold off sharply this week after oil prices broke through $100 per barrel on renewed hostilities in the Middle East, and bond yields continued to rise on concerns of sticky inflation, with 10-year yields just shy of 5%.
August producer price inflation rose to a hotter than expected 5.4% year-on-year, although core PPI, excluding...
10 September 2026
Why some UK sectors command premium valuations while others trade at a discountSome parts of the UK stock market trade at a premium price to earnings or PE ratio while others trade at a discount to the market. While there are many factors which can influence the PE ratio, this article explains the most prevalent reasons and reveals the sectors with the highest/lowest PEs.
Before that, it is worth asking what the PE ratio is...
9 September 2026
What could higher interest rates mean for markets and your money?The Bank of England and US Federal Reserve are primed to make their latest decisions on interest rates, with expectations for a short-term move higher building.
If the outlook for central banks’ rate policies was a game of football, commentators would describe 2026 as a game of two halves.
At the beginning of the year, the narrative was a broad...
5 September 2026
Martin Gamble on US markets: Dell shines as Broadcom falls, Uber cuts jobsUS stock markets eked out small gains, aided by a mid-week reversal in bond yields, triggered by a speech from Federal Reserve governor Christopher Waller who said he could support keeping interest rates on hold at the September meeting.
This follows a hawkish speech from Fed chair Kevin Walsh’s at the Jackson Hole Economic Symposium on 28 August...
3 September 2026
Discover the most and least volatile stocks in the FTSE 350Some stocks move around in price more than others and this is often related to how stable or otherwise their earnings are, as well as other factors.
For example, utility companies and food retailers have steady revenues which means their earnings are more predictable than those for cyclical parts of the economy like hospitality and manufacturing.
T...
28 August 2026
Martin Gamble on US markets: Nvidia powers Wall Street reboundUS markets bounced back in decent fashion through the course of the week as some of the tension around government debt and the inflationary pressures unleashed by the Middle East crisis eased.
Attention switched to corporate earnings from the technology sector, including from the world’s largest company Nvidia, which largely struck a confident tone...
