system
A chat on subreddit /r/wallstreetbets
human
I can't trade MNX (not showing any options available) on TDA (not sure if I don't have the right approval, I have level 4 options), but you can always trade NDX instead, though liquidity seems a bit better for QQQ instead.

gpt
Thanks for the QQQ.  It appears the % gains run the same as the NDX.  I'm also using TD Ameritade.  When I search QQQ, I see nine different QQQs. Are they all the same? 
  
 I'll scale the paper NDX down to the QQQ size and see how well my plan continues working.  
  
 Thanks again.