I participate in Schwab’s similar lending program. You sign your account up for the program (account by account, you can hold some out if you choose), then they send a request when they want to borrow a specific stock. If you like the rate you accept. It is stock by stock, not all stocks in a signed-up account.
They have never requested to borrow a stock not on Nas or NYSE. I doubt that program applies to FUSZ in any way at present.
News 
Market Data 
Discover 
