IHS tries to track market trends by looking at what devices are made of, how much they think items cost, etc. A large reason for this is for the financial world

IHS tries to track market trends by looking at what devices are made of, how much they think items cost, etc. A large reason for this is for the financial world so investors can say "ok, the if the last iPhone sold x devices, the new one will sell y devices. It has a Bosch sensor that we think costs 10 cents so Bosch will effectively sell z million dollars of those sensors." They don't do this with just iPhones fyi, they do it with a ton of different things.