The world's low-cost carriers (LCC) and airlines not part of the global alliances have taken market share away from the leading global groupings this month. Over the past 12 months, LCCs have increased their share of global aviation (in terms of seats per week) from 23.1% to 23.8%, while the un-aligned carriers have risen from 27.3% to 29%. Over the same period, Star Alliance's share has fallen 1.1 ppts to 23%, while oneworld has lost 0.9 ppts to 10.2%. SkyTeam, which has added China Eastern and Shanghai Airlines to the fold lately, has seen its share drop just 0.4% to 14%.