Impressionist and Modern evening totals are down by half, but a dearth of top works is more to blame than the UK’s Brexit vote

British-based collectors disregard Brexit and buy a quarter of works in contemporary art auction

Confirmation of the Ely House gallery gives UK market a needed boost

Proceeds from sale at Christie’s in London will benefit work on wildlife

Cross-disciplinary fair focuses on art and design to lure collectors and curators

Strong bidding from US and Asia helps shore up 20th-century and contemporary sale

As the auction house celebrates a milestone anniversary, its global president reflects on what's in store for the future

Three highlights going under the hammer in the Defining British Art sale in London on 30 June

Warning that the world’s most stringent trade rules could see dealers moving abroad

Political uncertainty and last-minute withdrawals may have contributed to below-estimate results

Ahead of Brexit vote, auction house’s Impressionist and Modern Art evening sale achieves solid results

Visitors and participants may be spared having to choose between the two events

First recipient, Middlesbrough Institute of Modern Art, to spend £50,000 on work addressing migration crisis

New technology allows collectors to take part in sales in real time

Her annual global market report, now sponsored by the Swiss fair and UBS, will be published to coincide with next year’s Hong Kong edition

Our pick of highlights coming to auction this week