In a significant shift in the streaming ad market,Amazon.com Inc.(NASDAQ:AMZN) has caused a major disruption forNetflix Inc.(NASDAQ:NFLX) by introducing an ad-supported version of itsPrime Videoservice.

What Happened: Amazon's move to convert its entire Prime Video subscriber base to an ad-supported version has led to a significant decrease in ad prices for everyone, including Netflix,Alphabet Inc's (NASDAQ:GOOG) (NASDAQ:GOOGL)YouTube, and TV networks, reported The Wall Street Journal. This has impacted the negotiations these platforms are having with advertisers for the upcoming TV season.

Netflix has...