The Irish Stock Exchange yesterday announced that dealings in Impshire Thoroughbreds and Tribune Newspapers, which publishes the Sunday Tribune newspaper, had been cancelled.

The delistings, which were predicted in Monday's Irish Times, took effect yesterday morning. Impshire Thoroughbreds, a bloodstock investment company, had a net asset backing of 77.5p per share at December 31st 1995. Its ordinary shares last traded at 20p.

Tribune Newspapers has accumulated losses of £10.1 million and a negative net worth of more than £7 million. Its shares last traded at 1p.

Meanwhile, the board of the stock exchange has approved admission of Ennex International to the Exploration Securities Market. Its shares are listed at 10p.