Tracking the insider information

Market-beating tips come and go but one has stood the test of time: follow those in the know, the company ‘insiders'.

6th August, 2005

It's long been gut investor instinct and it's backed up by research. The definitive study has been done by Professor Nejat Seyhun of the University of Michigan. His book, Investment Intelligence from Insider Trading, uses data from over one million insider transactions between 1975-1996. The conclusion?

Stocks characterised by insider buying tended to outperformthe broadermarketby 8.9 per cent over the following 12 months. Stocks where top directors were selling, on average, underper formed the market...

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