It's new. I also believe the "staring down the bull" location is not a permanent location.
It was created to advertise an index fund.
The bull statue is not located in front of the NY Stock Exchange building; it's located at Bowling Green Park ~2 block away.
The sculptor of the bull statue is extremely opposed to the "staring down the bull" location; he believes it corrupts the meaning of his statue and exploits his work for profit. Which, IMO, is a fair position to take even if you are 100% in favor of gender parity.
BONUS fun fact: The charging bull statue was originally unsanctioned guerrilla art.