Why Amazon Stock Plummeted Today | The Motley Fool

A regulatory development across the Atlantic Ocean and an analyst’s recommendation downgrade were deciding factors in the decline of Amazon (AMZN 4.42%) stock on Tuesday. On those less-than-encouraging pieces of news they sold out of the mighty retail and tech company to leave it with a more than 4% loss in share price on the day.

A regulatory upgrade, and an analyst downgrade

That day, the European Union (EU) designated 19 large tech companies — including Amazon and peers like Microsoft and Alphabet‘s Google Cloud — as “critical” technology partners for the bloc’s financial industry.

This brings them under the direct supervision of EU regulators. Those officials tend to be more aggressive about trying to limit the power of tech giants than their American counterparts.

Separately, before market open Rothschild Redburn’s Alex Haissl pulled the lever on that…