Despite claims that it is going to become the next big thing in sports wagering, entity betting is off to a in Nevada.

The reason? Lack of involvement among sports books.

In June 2015, Nevada Gov. Brian Sandoval signed the state’s entity betting law, which allows out-of-state residents to wager—albeit passively—with Nevada sportsbooks. Under the law, Nevada-licensed sportsbooks are now able to accept wagers from business entities representing pools of passive investors—a process that can be compared to investing in mutual funds.

More than a year later, the concept only has one participant: sports betting tech provider CG Technology. The company was also a proponent of the legislation, lobbying the Nevada Legislature for the adoption of the legislation in hopes that entity betting will cause a dramatic boost to the state’s betting handle. Nevada is the only US jurisdiction currently allowed to offer single-game sports wagers.