No, at least not that I've heard of in a few years. In2deep use to host them for a few years in NWA/Fayetteville. We had some pretty big name vendors show up during those years. Jason Fox came during one of those years.
The Razorbackreef club in central arkansas does a few events but they are mainly frag workshops, small auctions and raffles. I don't think they've ever had one.
Last couple of years, I travel out of state for frag swaps. I hit the Corals for Charity in tulsa or if its not on a weekend I'm working, I try to hit the one in St. Louis that's usually in spring and fall.
I did enjoy the one in fayetteville, not only did I meet a lot of reefers, I bought a lot and traded as well.