Depends on what specialty your talking about. It seems there are fairly large numbers in PM&R, neuro, Anest, OB/GYN, and EM and less in things like Derm, Opthalmology, Radio and some of the surgical subspecialties. But there are a fair number of osteopathic residency positions in Ortho and Derm if you decide to take that route. So it really depends on what is competitive for your match year. Right now things like Patholgy, Anest, and the like are very NON-competitive and one would have a fairly easy time matching to a place of their choice because so many positions go unfilled each year or filled by FMGs. On the other hand in recent years EM, Ortho and the like have become ultra-competitive with many students not matching each year. My two cents.