Ex-divs to take 3.39 points off FTSE 100 on Jan. 15

LONDON, Jan 13 (Reuters) - The following FTSE 100 companies will goex-dividend on Wednesday, after which investors will no longer qualify for thelatest dividend payout. According to Reuters calculations at current market prices, the effect of the resulting adjustment to prices by market-makers would take 3.39 points off the index. COMPANY (RIC) DIVIDEND INDEX IMPACT (pence) (points) Ashtead 2.25 0.04 Imperial Tobacco 81.20 3.06 Next 50.00 0.29 Among FTSE 250 companies going ex-dividend are: COMPANY (RIC) DIVIDEND F&C Commercial Property Trust 0.50 NB Global Floating Rate Income Closed Fund 0.94 Qinetiq Group 1.40