Warren Buffett’s favourite holding period — forever — has few fans these days, with the average length of time shares spend in a portfolio hitting record lows this year as investors surf wild market swings for quick gains.
The length of time that investors hold shares has been shrinking for decades but the trend accelerated this year in volatile markets that have made people nervous about sitting on investments for too long.
There are different ways of slicing it, but Reuters calculations based on New York stock exchange data show the average holding period for US shares was 5-1/2 months in June,

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