It happened around 7:00 p.m. at 59th and Race streets.
Officials say a 61-year-old real estate agent was closing his business for the night when shots rang out.
The man was struck in the head by a stray bullet.
He was taken to the Hospital of the University of Pennsylvania in stable condition.
Police say the man suffered a graze wound.
There is no word on the shooter. The incident is under investigation.
