The slide in AWS’s market share over time signals the maturity of the cloud market. But even amid this decline — AWS held 49.4% of the market share in 2017 — the company remains by far the dominant provider. But the other clouds are, and have been, chipping away at its lead, and more customer adoption leads to higher growth rates than Amazon can maintain at its size.
The growth of one provider doesn’t necessarily erode that of others. Rather, customers are using more cloud services, which has a direct impact on a provider’s revenue gains.
