Determine the sentiment expressed in the news from financial perspective.
Options: positive, negative

Google and YouTube parent Alphabet undershot Wall Street analysts' expectations for the third quarter, reflecting a significant slowdown in digital ad buying. The tech giant had a shade less than $69.1 billion in revenue, up 6% from the year-ago period (or 11% when foreign currency gyrations are factored out), with earnings per share of $1.
negative