Article URL: https://github.com/expo/exact Comments URL: https://news.ycombinator.com/item?id=50433541 Points: 53 # Comments: 24. Google’s exact match keyword targeting used to mean one thing: the keyword had to match exactly whatever query the searcher used. Then close variants came into the mix, and that definition. Exact Sciences (EXAS) stock crashed to a three-year low Thursday as the Street debated the merits of its licensing deal for a blood-based colon cancer test.