The move follows the implementation of FTSE's index ground rules, recognising the application of new listing categorisations by the Financial Services Authority in its role as the UK Listing Authority.
Under the new listing rules, DMGT's `A' shares will be classified as having a "standard" rather than a "premium" listing because they do not confer voting rights.
The new listing categorisations were introduced in April 2010 and take effect on 31 May, following a two year transitional period.
On 18 April FTSE issued clarification that shares with a "standard" listing will not be eligible for inclusion in the FTSE UK index series.
DMGT is currently included in both the FTSE 250 and the FTSE All-Share indices.
At 9:02am: [LON:DMGT] Daily Mail & Gen Trust A share price was -1.05p at 422.55p
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