You are misinformed. Patent assertion is a highly profitable business model. In fact, it is so profitable that companies are rushing to this sector like gold seekers rushed to San Francisco in the late 1840s.
There are many patent assertion companies who have made billions and billions of dollars over the last few decades. And there are many many more who have made hundreds of millions.
VRNG has a great business model. And a great litigation/licensing team. The question marks that exist surround the quality of the company's assets and how and when these patent portfolios will be monetized.
You probably should not be invested in this sector, even via your alleged call options, if you don't understand the basics of the asset class.