RE: 40% dividend cut7 Aug 2017 11:40
The change in dates was announced in the half-year report 2/12/16 when they announced that the £10 per share would be split between dividends and buy backs:
"In February and August each year, the Company will announce the dividend to be paid at the end of March and September, respectively. This will be calculated as the absolute value amount to be delivered in the six months (£138.8 million based on the current shares in issue), less the cost of any share buy-backs undertaken in the relevant period. Going forward each subsequent relevant period begins on the date of announcement of the dividend for the previous relevant period."
Just for reference, the SP was £27.60 at the end of 2/12/16 when they announced the buy back and about £35.50 today - a gain of roughly £8.00 a share versus a loss to date of roughly £0.55/ share in dividends (and a gain of about £0.02/ share for each of the future dividends if there were no more buy backs). I'm sure the gain isn't solely down to the buy backs, but overall I can't say I'm unhappy with the performance.