Sotheby's Contemporary day sale = £16.1m; Christie's PWC day sale = £16.8m with a record price for Alex Katz

This commentary by Marion Maneker is available to AMMpro subscribers. (The first month of AMMpro is free and subscribers are welcome to sign up for the first month and cancel before they are billed.) Phillips Evening sale performed well with 25 out of 28 lots sold or a 89% sell-through rate. As with all of this week’s sales, the sell-through rates were helped by third-party guarantees or otherwise perspicacious sale management. A couple of lots without support were sold at greatly compromised prices but sold nonetheless.