In a trading update issued today, Trinity said that group advertising revenue had tumbled during the five months to November, excluding acquisitions and disposals made in 2005 and 2006.
The group also posted an 8.6% fall in ad revenues for its regional division and an 8.8% fall in its national titles for the same five-month period.
Trinity said it had anticipated the downturn in profits. In a statement, the group said: "Our performance in the year to date has been consistent with our forecasts; we are confident that the group will achieve performance in line with current market expectations for the year as a whole. We expect to see advertising market conditions stabilise in 2007 with the rate of decline slowing."
Today's figures continue the decline in Trinity's fortunes this year. The publisher, which owns the Daily and Sunday Mirror, launched a strategic review in August after recording a drop in profits. It announced this morning that it is to sell off The Racing Post and 138 regional newspapers.
The Daily Mirror's circulation slumped by 6% year on year to 1,549,573, and there were also disappointing returns for The People.
Last night, Trinity Mirror shares closed at 497.75p, valuing the company at around £1.46bn.
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