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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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Rebalancing your portfolio won’t make you richer. Do it anyway
Between shares and bonds, rebalancing your portfolio doesn't raise returns and usually costs a little. Its value is that it makes you buy what has crashed and sell what has soared, which instinct tells you not to do. The US evidence shows when it bites, how often to bother, and how to make it automatic.
Robin Powell
5 days ago7 min read
Portfolio insurance: the crash protection that rarely pays out
Buying put options to insure a portfolio against a market crash feels like the prudent thing to do. But new research covering more than two centuries of market history finds that portfolio insurance loses money over time — and that it fails in exactly the slow, grinding bear markets that do investors the most harm. People insure almost everything they value. Homes, cars, phones, even pets: paying a modest premium to guard against a loss you would rather not face is one of the
Robin Powell
Jul 107 min read
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