Modern, 4-letter business name that could suit for a variety of different products and services.
The name "vxtx" has only four letters and just one syllable. One-syllable names are extremely rare and highly prestigious. One syllable names are used by established brands like Path, Chase and Ford.
Vxtx.com is a dot com domain. Dot com domains are the most valued domain extension in the world, famously used by websites like facebook.com. Owning a dot com says that you own the word "vxtx" online.