Today the stock fell 19p to 170p, leaving the business valued at £1.7 billion, compared to £4.5 billion the day after the stock market launch. In the nine months to December 31 revenues rose 3.7%. Letters fell 1.5%. The international division is on the up, with strong growth in Germany, Belgium and eastern Europe. Profits for the year are expected to be between £300 million and £340 million. The City now thinks Royal Mail’s dividend is at risk, another reason for the plunge in the shares.