First, the Howey Test is the only test from the Supreme Court.
Second, that is a multipronged test, a product/service which wasn't registered as a security but still passes or fails one prong isn't enough to say it is or isn't a security.
THIRD, there are multiple other tests in various federal circuits.
Fourth, there are tests created by states relevant at the state level.
Fifth, most people are just lucky that securities frameworks haven't been applied haphazardly to everything under the sun.
First, the Howey Test is the only test from the Supreme Court.
Second, that is a multipronged test, a product/service which wasn't registered as a security but still passes or fails one prong isn't enough to say it is or isn't a security.
THIRD, there are multiple other tests in various federal circuits.
Fourth, there are tests created by states relevant at the state level.
Fifth, most people are just lucky that securities frameworks haven't been applied haphazardly to everything under the sun.