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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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Dimensional funds in the UK: what DIY investors can now hold, and where
Dimensional Fund Advisors aims its marketing at professionals and has long been associated with financial advisers. Yet a TEBI check found its funds listed on mainstream UK DIY platforms, many with ISA and SIPP eligibility. Here is where you can hold them, how they compare with Avantis, the firm set up by former Dimensional executives, and why a good planner still has a role.
Robin Powell
Sep 2610 min read
The case for factor investing in emerging markets
Most investors either ignore emerging markets or hand their money to active managers who underperform. Academic research points to a better approach: factor investing in emerging markets, targeting the company characteristics that have persistently driven higher returns.
Robin Powell
Feb 710 min read
Why I invest in Avantis ETFs
Avantis ETFs give UK investors direct access to systematic factor investing for the first time. Here's why I own three of them — and what could go wrong.
Robin Powell
Jan 3011 min read
Buffett's investment strategy: it was systematic all along
What if Buffett's investment strategy was never about genius? New research shows 87% of his returns came from factors anyone can access.
Robin Powell
Jan 239 min read
Buffer ETFs: protection, illusion or expensive reassurance?
Buffer ETFs are designed to limit stock market losses over a set period, usually in exchange for capping potential gains. Now becoming available to UK investors, these downside protection ETFs use options to cushion falls in markets such as the S&P five hundred. This article explains how buffer ETFs work, what they cost, and whether the trade-offs are worth it for long-term investors.
Robin Powell
Jan 145 min read
S&P 500 concentration risk: is your portfolio really diversified?
S&P 500 concentration risk is at historic highs. If you own a global tracker, your portfolio may be far less diversified than you think. Here's what you can do about it.
Robin Powell
Dec 19, 20252 min read
International value has bounced back: what should investors do now?
International value is enjoying a powerful resurgence after a decade of underperformance. Driven by compelling valuations, governance reforms in Japan, and improving sentiment in Europe, the case for international value is backed by decades of academic evidence. Learn why it remains a core long-term opportunity for evidence-based investors seeking global diversification.
TEBI
Aug 15, 20258 min read
Leveraged ETFs: a high-risk gamble you shouldn't take
Leveraged ETFs promise double or triple the market's daily return. What they actually deliver, according to Morningstar's latest research, is high fees, high volatility and a strong tendency to lose money for the investors who hold them.
Robin Powell
Feb 21, 20254 min read
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