there was a black billboard above the track that had the "Got CMKX?" slogan in white letters.
Color me confused. I thought it was illegal to advertise your stock (as opposed to your company) unless you also made sure only accredited investors ended up buying as a result of your advertisement.
Or does that apply only to private companies?
I'm not even remotely well-versed in the morass of legal burdens under which public companies must operate.