Counterpoint Research:

Market Summary – Q4 2017: Apple remained the most profitable brand, capturing 86% of the total handset market profits. Further splitting profits by model, the top 10 models captured 90% of the total handset profits.

iPhone X alone generated 35% of the total handset industry profits. This is a significant landmark, as the model was available in the market for only two months during Q4 2017.

Nothing but good news for Apple and bad news for almost every other manufacturer.