Stock markets are such fun!
In my experience "Market Makers" may be only minimally informed as to the nature of the companies in which they invest and their products/prospects.
Back in the days when Sinclair and Acorn were struggling and Amstrad were taking off big-time, the Amstrad stock price fell back, "Because it was a computer stock too", according to our broker, who questioned our decision to bet the farm on Alan Sugar and Amstrad.
That assessment was so obviously disconnected from the true market prospects that we did the deed promptly at a slightly lower price than expected - 67p per share, iirc.
We rode that bet all the way to the top, which made a massive difference to our family finances.
Suspect it's not that different today, although I do still try to explain tech stuff to people.
For some reason their faces usually glaze over in bewilderment, then the snoring starts.
I blame the parents, of course.
;)