The query matches a term that can be found in the stocks description. Give it a try yourself, copy something unique enough from the description and use it as a query, you will be redirected to that stocks page.

Romance, Mystery: https://www.google.com/finance?q=Romance%2C+Mystery

X.commerce: https://www.google.com/finance?q=X.commerce

Its unbelievable how many people in this thread accuse Google, conspiracy theories and all that. The thread was up-voted enough to be on front page. Don't believe everything you hear, do some research on it first ?