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Does "buy the dip" actually work?
"Buy the dip" sounds like smart investing — wait for prices to fall, then pounce. But 60 years of evidence reveals the strategy underperforms passive investing more than 60% of the time. Here's why waiting for the perfect moment costs more than it saves.

Robin Powell
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What history tells us about expected stock returns after a bull run
New research analysing 153 years of US market data reveals why expected stock returns over the next decade are likely to disappoint. The three forces driving returns — dividends, earnings growth, and P/E changes — rarely pull together when valuations are stretched. With the Shiller CAPE at 40 for only the second time in history, the maths suggests caution. Here's what disciplined investors should do.

Robin Powell
Jan 38 min read


Does the January barometer really work?
Does the January barometer really predict stock market returns? This Wall Street saying claims January's performance forecasts the whole year. But the evidence tells a different story. While the pattern appears accurate roughly 70% of the time, this success rate is misleading — markets rise in most years anyway. Before betting your portfolio on this calendar superstition, discover what the data actually shows.

Robin Powell
Jan 17 min read


Equity duration: why stock-picking got harder after 1945
A new study shows how equity duration reshaped markets after 1945, making stock-picking harder and strengthening the case for evidence-based investing.

Robin Powell
Sep 14, 20256 min read


Future stock market returns may be lower: here's why
Multiple lines of evidence suggest future stock market returns will fall short of historical averages. Major institutions, legendary investors, and academic research all point to the same conclusion: expect 3-6% annual returns vs historical 8-10%. High valuations, demographic headwinds, and bond competition create structural challenges. Investors need realistic planning, global diversification, and evidence-based strategies.

TEBI
Aug 14, 20257 min read


Why beating the market is just a game of chance
The investing industry gives the impression that beating the market is all about skill, but the evidence tells us it's largely a game of...

TEBI
Jun 19, 20253 min read


Why Nobel-Prize winning economists reject active investing
Eugene Fama is one of several Nobel Prize-winning economists whose research undermines the case for using actively managed funds This is...

TEBI
Jun 12, 20253 min read


Did government bonds do their job in the tariff turmoil?
A debate has raged in recent years about the wisdom or otherwise of investing in government bonds. I’ve advocated their inclusion in...

Robin Powell
Apr 8, 20254 min read


How to ride out the current market storm
President Trump's announcement on tariffs has caused a global market storm. Here are some tips on staying calm where investors panic.

Robin Powell
Apr 4, 20252 min read


Is more choice in investing a good thing?
Greater choice doesn't necessarily mean better outcomes for investors. Learn why active ETFs, private credit, and option-based ETFs may not

Robin Powell
Feb 28, 20252 min read


Stop making predictions
The investing industry loves to make bold predictions. Financial commentators often appear in the media claiming to foresee market trends...

Robin Powell
Jan 20, 20253 min read


Is the S&P 500 too concentrated?
If I had £1 for every time I read that index funds are too heavily concentrated in big US tech stocks I would be a very rich man. It is...

Robin Powell
Jan 17, 20255 min read


Six changes to financial markets that transformed investing
The financial markets have changed beyond all recognition since the late 1960s and early 1970s. But many investment strategies haven't.

Robin Powell
Jan 2, 20256 min read
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