Ex-divs to take 1 point off FTSE 100 on Dec 13

    LONDON, Dec 10 (Reuters) - The following FTSE 100 companies will go
ex-dividend on Thursday, after which investors will no longer qualify for the
latest dividend payout.
    According to Reuters calculations at current market prices, the effect of
the resulting adjustment to prices by market-makers would take 1 point off the
 COMPANY                    (RIC)      DIVIDEND      STOCK OPTION   IMPACT
 Associated British Foods              33.3                         0.45
 3I Group                              15                           0.55
Among FTSE 250 companies going ex-dividend are: 
 COMPANY                            (RIC)            DIVIDEND
 Assura                                              0.685
 BCA Market                                          3
 F&C Commercial Property Trust Ltd                   0.5
 Ferrexpo                                            6.6 (USc)
 Grainger                                            3.52
 Halfords Group                                      6.18
 (Reporting by Josephine Mason)