KEY POINTS
  • Google said it will only use "privacy-preserving technologies'' that rely on methods like anonymization or aggregation of data after it stops supporting cookies.
  • The announcement raised questions in the industry about future initiatives from ad-tech players.
  • Here's what analysts said about the shakeout and what it means for Google and public ad-tech companies. 
Google CEO Sundar Pichai speaks during signing ceremony committing Google to help expand information technology education at El Centro College in Dallas, Texas, October 3, 2019.

Analysts sounded off on Google's latest guidance on its promise to not use technologies that track people individually across the internet.

Some analysts said their views haven't changed. But BMO downgraded one ad tech stock, noting it's "too hot in the kitchen."