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What is evidence-based investing?
Nobody can establish who first used the phrase 'evidence-based investing', and no regulator defines it. Robin Powell, who was given the name by Larry Swedroe in 2015 and is sometimes wrongly credited with coining it, sets out what it actually means: four tests of what counts as evidence, borrowed from a medical parallel that hit the same crisis twelve years ago. Including where he goes further than a global tracker, and why he holds that position less firmly than he used to.

Robin Powell
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When AI financial advice misleads by design
In a new experiment, 3,700 people chose between two index funds tracking the same index. One of them paid more in every possible outcome. When a chatbot was told to promote the worse fund, the share of people getting the choice right fell from 64 per cent to 34 per cent. Telling them the bank had money riding on their answer made no difference at all. A survey of 836 UK retail investors, published in July by Opinium, found that 54 per cent had already used AI to look up inves

TEBI
Sep 174 min read


Why Vanguard is called Vanguard
Fifty years ago this week, the first index fund for ordinary investors went on sale and almost nobody bought it. The company behind it had been named two years earlier after a ship in a picture on its founder's wall. The story Vanguard tells about its own beginnings is tidier than what actually happened, and less useful.

Robin Powell
Sep 44 min read


FCA asset management reforms: the £128m question
On 14 July 2026 the FCA proposed the biggest overhaul of UK asset management regulation since the rules were inherited from the EU: a single remuneration code, a new fund-reporting framework and higher size thresholds, worth an estimated £128 million a year to firms. The industry welcomed it within hours. What the reforms mean for ordinary investors, and whether the savings ever reach them, is the debate that has barely begun.

TEBI
Jul 178 min read


Fundsmith's underperformance, at 21 times the cost
Terry Smith built Fundsmith on a simple discipline: buy good companies and do nothing. Now, five years into trailing the market, he is turning over half his portfolio and paying more attention to momentum. The strategy that made his name is changing. The fee that came with it is not.

Robin Powell
Jul 93 min read


Fund fees and performance: the link is getting stronger
New Morningstar research reveals the link between fund fees and performance has strengthened dramatically. A decade ago, some expensive funds generated enough alpha to partially justify their costs. Today, fees explain almost everything. The skill component has essentially vanished.

Robin Powell
Jan 229 min read
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