The 23-year-old winger has been linked with a move to Goodison Park from his parent club Sporting Braga in Portugal after impressing with los Verdiblancos this term.
"I have no idea about the Everton thing. I did read the other day about interest from some other teams, but I do not know," the Spaniard, whose full name is Juan Carlos Perez Lopez, told reporters.
"Nobody has said anything to me. Now I am just focused on Betis and I would like to stay.
"On the subject of my future, that is something I keep away from. I prefer to focus myself on playing.
"When the season is over, then we can look at all this."