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How much of your portfolio should be in stocks?
How much of your portfolio should be in stocks? It's one of investing's most important questions — and the standard answer is costing the average investor the equivalent of 2% of their lifetime consumption. Yale economists have finally built something better, and it fits in a spreadsheet.
Robin Powell
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Wealth management underperformance: the exposed secret that could cost you millions
Y TREE's analysis of 550 portfolios found that 84 per cent of wealth managers underperformed in 2025. Wealth management underperformance cost investors up to a third of their expected returns — and most don't even know it's happening.
Robin Powell
6 days ago11 min read
100 years, 29,000 stocks, 46 winners: the case for indexing just got stronger
New research covering 100 years of US stock market data shows that just 46 firms out of nearly 30,000 drove half of all shareholder wealth creation — down from 89 in the original study. With wealth increasingly concentrated in fewer winners, the case for indexing has never been stronger. Here's what the numbers mean for your portfolio.
Robin Powell
Mar 208 min read
The hidden cost of trading in retirement
New research suggests that trading in retirement increases after people stop working — and that the extra activity quietly erodes returns. Here's what the evidence shows, and why having more time isn't the advantage most investors assume.
Robin Powell
Mar 117 min read
Trump trades and the forecasting trap: why political betting reveals a costly investment truth
Trump trades—betting on presidential policies — seem obvious. Reality? Investors who bet against Trump taking action earned S&P 500 returns. Believers lost 20%.
Robin Powell
Oct 24, 202512 min read
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