iTunes movie sales have managed a turnaround in US marketshare, according to research firm IHS. During the first half of 2011, Apple's portion of electronic sellthrough and video-on-demand spending grew to 65.8 percent, versus 64.9 percent in the first half of 2010. In an equivalent gap between 2009 and 2010, Apple dropped by 11.9 percent. IHS remarks that Apple's last rise in share was during 2009.