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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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AI investing risk: being right isn't enough
Leopold Aschenbrenner had better access to AI than almost any investor. His hedge fund grew to $24bn in less than two years. Yet it collapsed not because his AI thesis was wrong, but because leverage forced him to sell. The AI investing risk his story reveals is one most investors overlook.
Robin Powell
Jul 314 min read
S&P 500 concentration: the scare story that's costing investors money
The fund industry warns that S&P 500 concentration makes your index fund dangerous. A major new study covering nearly a century of data tells a very different story — and suggests the real risk is listening to people who profit from your fear.
Robin Powell
Feb 189 min read
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