If they make decisions like bringing the cast from “Jersey Shore” to ring the opening bell, you have to wonder that maybe everything is their fault after all.

“Gorilla juiceheads” fist-pumped on the New York Stock Exchange on Tuesday morning as the cast of “Jersey Shore” kicked off trading in one of the more anticipated opening bell ceremonies in some time.

Traders on the increasingly quiet floor said it was one of the most crowded days in years as the deeply tanned cast of the MTV hit rang the bell and stayed to sign autographs amid a crush of onlookers and a flood of media.