https://info.shapeshift.io/blog/2017/08/17/shapeshift-and-tokens-securities We have thus instructed our counsel to examine the tokens available on ShapeShift, especially through the lens of the Howey Test, which is the test the SEC applies to determine the presence of a security.
As that analysis is done, certain tokens may be removed from the service for individuals within the United States, who will then no longer be able to interact with these technologies safely or transparently through the ShapeShift platform.