** Ashtead AHT.L slips 7.5% at 5,798p; biggest loser on
FTSE 100 index .FTSE
** British equipment rental firm proposes to move primary
listing to U.S.
** Co warns of lower full year profit, hurt by weak
commercial construction market in the U.S., its largest market
** Posts HY pre-tax profit of $1.26 bln, slightly below
company-compiled analysts' consensus estimate of $1.29 bln
** Launches $1.5 bln share buyback plan
** AHT up ~6% YTD
(Reporting by Yamini Kalia in Bengaluru)
((Yamini.Kalia@thomsonreuters.com;))